pickeringrelay.com mm (inches) Dimensions Features Physical Outline Series Name Application Contact Configuration Footprint (0.1inchgrid) Switch Power/W operations Expectancy/ Life Contact Resistance/mΩ Max Initial Reed Switch Type Switch Schematic Operate Time/ms Carry Current/A Switching Current/A Switching Voltage/V Release Time/ms Diode Available Switch Number Insulation Resistance/Ω Resistance Coil Carry Current/A Switch Power/W Contact Resistance/mΩ Max Initial Switching Voltage/V Diode Available Contact Configuration Footprint (0.1inchgrid) Reed Switch Type Switch Schematic Switching Current/A Switch Number Resistance Coil Insulation Resistance/Ω Release Time/ms Operate Time/ms Reed Switch Type Switch Schematic mm (inches) Dimensions Features Physical Outline Series Name operations Expectancy/ Life Contact Resistance/mΩ Max Initial Switch Power/W Carry Current/A Switching Current/A Switching Voltage/V Diode Available Switch Number (inches) Dimensions mm Features Physical Outline Series Name Application Application operations Expectancy/ Life Contact Configuration Footprint (0.1inchgrid) Operate Time/ms Release Time/ms Insulation Resistance/Ω Resistance Coil
pickering Max Load Min Load Typical Height 12V/Ω 24V/Ω Depth Width 5V/Ω 3V/Ω Max Load Min Load Typical Height 24V/Ω 12V/Ω Max Load Depth Width Min Load 5V/Ω 3V/Ω Typical Height 24V/Ω 12V/Ω Depth Width 3V/Ω 5V/Ω
New 124-1-A 9.5 (0.375) 3.9 (0.153) 3.9 (0.153) 2.5 x10E8 1A (SPST) Low Level Dry Reed 10E12 Ω General Dry 10E7 10E6 10.0 (0.39) 3.7 (0.145) 2.5 x10E8 1A (SPST) 111RF-1-A 120 170 200 6.6 (0.26) 0.2 0.5 0.5 0.1 No 10E12 Ω 75 5 – 2 – Reed 10E7 10E6 150 170 180 Yes 0.5 0.5 0.5 0.2 5 1 – – –
SoftCenter® 15(3V), 20 15(5V), 20 DryReed 120-1-A Dry Reed General General 24.1 (0.95) 1A (SPST) 8.2 (0.32) New 800 300 200 150 114-1-A 1.0 Construction inMu-MetalCan Construction 1 – 1 1 – – 2000 750 250 150 15.5 (0.61) 3.9 (0.153) 3.9 (0.153) 75 1A (SPST) 109RF50-1-A 10E12 Ω 10E9 10E8 10E7
120 200 0.5 1.2 0.2 No Low Level Dry Reed Low Level Dry Reed 800 500 200 0.5 10 2 – 120 200 0.5 10 2 – 15.1 (0.595) 3.7 (0.145) 1A (SPST) 6.6 (0.26) 10E12 Ω Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation 10E9 10E8 10E7 200 600 375 Yes 1.2 0.5 0.2 1A (SPST) 15(5V), 20 6.6 (0.26) Dry Reed General 117-1-A Low LevelDryReed 400 200 150 High Switching Power 1 1 – – 109RF75-1-A 200Vdc 240Vac (500Vmaxstandoff) 9.52 (0.375) 3.7 (0.145) 2.5 x10E8 10E12 Ω 10E7 10E6 0.15 120 170 Yes 0.5 0.5 0.3 Coaxial/RF/High SpeedDigitalReed Relays 5 2 – – High Voltage DryReed Low Level Ultra HighPackingUltra Density Dry Reed 2A (DPST) 9.9 (0.39) 120 117-2-A 0.5 10 2 – – High Power 250 6.3 (0.245) Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation – 10E12 Ω 2A (DPST) 10E7 10E8 10E9 114-2-A Yes 0.5 40 1000 1 2 1 1 350 150 – Dry Reed General 1000 150 500 15 1A (SPST) 6.6 (0.26) 1 1 – – High DensityVertical 116-1-A Low LevelDryReed 1A (SPST) 750 500 250 103G-1-A 10E12 Ω 10E9 10E8 10E7 200 12.45 (0.49) 1.2 0.5 0.2 3.7 (0.145) 2.5 x10E8 10E12 Ω Low Level 10E7 10E6 Dry Reed 29.0 (1.14) 12.5 (0.49) 120 200 Yes 0.5 0.5 0.5 0.2 10 2 – Low Capacitance 1000 120 500 300 0.5 10 2 – 200 2A (DPST) 9.9 (0.39) 116-2-A 19.1 (0.75) 8.1 (0.32) 4.8 (0.19) 750 375 – Yes Dry Reed General 1000 150 500 15 1 1 DryReed 103GM-1-A 1A (SPST) 10E12 Ω General 10E9 10E8 10E7 1B (SPNC) 200 1.0 1.2 20 0.5 0.2 1 114-1-B 1000 2200 1A (SPST) Low Level 6.6 (0.26) 350 Dry Reed 115-1-A –
1000 1000 500 250 120 500 300 0.5 10 – 2 Low Level Dry Reed 0.5 10 2 15.5 (0.61) 3.7 (0.145) 10E12 Ω 10E9 10E8 10E7 Dry Reed 120 200 Yes 1.2 0.5 0.2 General 150 500 300 0.5 10 1 – General Reed Dry 250 1.0 20 1 – – – 1A (SPST) 102M-1-A 7.6 (0.3) 2A (DPST) 9.9 (0.39) 115-2-A 1000
Higher Power Dry Reed Low Level Dry Reed Up to20WSwitching 150 375 350 20 0.5 10 1 2 – – 2 – – – For helpwithyourcustomrequirementsgoto Pickering may beabletoadaptanexistingrelayordesignaspecialpartforyou.Someexamplesarebelow; 19.1 (0.75) 4.8 (0.19) 10E12 Ω 10E9 10E8 10E7 200 Yes 1.2 0.5 0.2 evaluationsamplecalltechnicalsaleson+44(0)1255428141,[email protected] afree ariations orenhancementof 10.0 (0.395) 3.7 (0.145) 2.5 x10E8 11.0 (0.43) 1A (SPST) Low Level Dry Reed If yourquestionsarenotansweredherepleaseemail 10E12 Ω General Dry parts number orlogo specifications Equivalents tocompetitor Custom P Special printwithcustomer Special pinconfigur V 112-1-A 10E7 10E6 120 200 750 500 250 Yes If yourquestionsarenotansweredherepleasecall 0.5 0.5 0.5 0.2 10 Reed 1000 2 – 150 0.5 10 High Packing Density 1 – – 1B (SPNC) 10.2 (0.4)
102M-1-B 1500 manufacture averywiderangeofreedrelays.Ifwedonothaveexactlywhatyouneed, Dry Reed General Higher Power Dry Reed ackaging 1.0 1 – – 20 3.7 (0.145) 1A (SPST) 15.2 (0.6) 150 500 10 (0.39) 10E12 Ω 20 110-1-A 1 2 – – 10E8 10E9 10E7 1000 150 200 500 Yes
1.2 0.5 0.2 For technicalhelppleasegoto Help withyour CustomRequirements Level Dry Reed Low 250 0.5 2 – 10
ations orpinlengths General Dry Reed 1500 [email protected] 1A (SPST) 15 – 1 1 113-1-A s discontinued 250 – 15.5 (0.61) 8.38 (0.33) s own part s own part 1A (SPST) 5.08 (0.2) 10E12 Ω 118-1-A 10E7 10E8 10E9 6.6 (0.26) 0.35 High Packing Density 120 200 Yes 0.6 1.2 Technical Help – – Low LevelDryReed 500 650 Low LevelDry 2.5 x10E8 1A (SPST) 113SP-1-A 10E12 Ω Reed 2200 1000 10E7 10E6 120 200 0.5 0.5 0.5 0.5 0.2 10 10 2 2 – - 3.7 (0.145) 12.5 (0.49) Custom Reed Relays pickeringrelay.com/products/custom-reed-relays Yes 2A (DPST) 8.9 (0.35) 113-2-A 15(5V), 20 Dry Reed General 150 pickeringrelay.com/help – – – 150 Very low Very capacitance EMF Thermal Controlled requirements Specificenvironmental – 1 1 specific loadconditions figures Special Lif Non-standar 1600 6000 6000 Smallest 1C (SPDT) 2.5 x10E8 Low LevelDry Form C Form 6.6 (0.26) Dry Reed 10E10 Ω +44 (0)1255428141 113-1-C [email protected] 10E7 10E6 250 150 0.1 0.1 0.2 30 Reed – 3 3 – 1 – 1600 2 200
e testingundercustomer’s 10E12 Ω 120 d coil voltages and resistance d coilvoltages andresistance General Dry 3.7 (0.145) 10.0 (0.39) 2.5 x10E8 0.75 1A (SPST) 6.6 (0.26) 1.2 111P-1-A 10E12 Ω Reed (Special) 1 Low LevelDry Reed 10E7 10E6 150 200 400 170 Yes 0.5 0.5 0.5 0.2 5 1 – – High Packing Density 3000 0.5 10 17 – – – Dry Reed Highest Quality Instrumentation Grade Reed Grade SwitchesInstrumentation Highest Quality General sensitivity version) 500 (1000forhigh 15/20 1A (SPST) 150 1.0 101-1-A – 1 – 15.1 (0.595) High Voltage 10E7 10E8 10E9 3.7 (0.145) 1A (SPST) 6.6 (0.26) 109P-1-A 10E12 Ω Switch 10E9 10E8 10E7 1000
1600 6000 6000 200 Yes 1.2 0.5 0.2 150 400 – 4 Low Level ore-mail: 9.4 (0.37) Reed 120 250 Dry 0.5 10 2 – Direct DriveDirect From CMOS
Mercury Switch Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation Standard General Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation Reed 150 500 Dry 1.0 20 50 75 – – 1 – 2 6 3 1A (SPST) 10E12 Ω 106-1-A 10E9 10E8 10E7 Standard 0.2”Pitch Standard 0.5 0.2
10E11 Ω Level Dry 1000 3000 1.75 1.75 19.1 (0.75) Reed 375 4.8 (0.19) Low 8.1 (0.32) 120 500 0.5 10 2 – Position Insensitive 1000
500 200 Yes 1.2 20.1 (0.79) 7.4 (0.29) Switch Yes 100 500 50 – 2 8 3 1C (SPDT) Dry Reed 10E10 Ω Plastic Package SIL 106-1-C ● ● ● 10E8 10E7 10E6 0.25 200
0.5
specification an increasedvoltage applications requiring has beenmodifiedfor example, theSeries104 specification. For tested toahigher Standard Catalogparts for RF/HFapplications 1 and2Form Copper platedswitches – 3 3 1 – ●
operated relays example, current Applications, for Specialized 1C (SPDT) Dry Reed 15(5V), 20 Dry Reed General 10E10 Ω 101-1-C 10E6 10E7 10E8 1600 6000 6000 150 1.25 0.25 200 1 – 1 1 – 3 3 A available Reed Relay Finder Relay Reed 10E9 10E8 10E7 200 0.5 0.2 10E12 Ω Level Dry 1000 3000 Reed 500 1.2 Low 120 500 0.5 10 2 General Dry 1B (SPNC) 101-1-B Reed 3000 6000 6000 150 1A (SPST) – 1 1 Voltage 105-1-A Switch 10E8 ● 10E7 10E6 ● High 0.75 15(5V), 20 400 150 0.5 0.5 200 10
1.2
– 4 ● discontinued part to acompetitor's pinout, anequivalent relay withcustom 2-Pole MercuryW required a commonopentimeis Changeover relaywhere 2-Pole MercuryW
pin length custom pinoutsor Standard partswith Low CoilPower/Low Thermal EMF 1 7.9 (0.31) 10E12 Ω Standard Mercury Switch Dry Reed 0.75 General 500 1.5 50 75 1 2 – 3 6 170 – 1 10E11 Ω 12.5 (0.49) 10E9 10E8 10E7 1500 Wide Range of Configurations Rangeof Wide 140 500
10E7 10E8 10E9 1000 3000 6000 Insensitive Position 1 Switch 350 100 et 1.5 et Low Level 50 Dry Reed 1 2 – 2 8 2A (DPST) 101-2-A 150 0.5 10 – 2 19.1 (0.75) 6.6 (0.26) Yes 1C (SPDT) Dry Reed 10E10 Ω 105-1-C 10E8 10E7 10E6 1000 3000 0.25 200 500 Mercury Switch 0.5 3 – 3 1 Standard 10E11 Ω 2000 1.75 1.75 150 650 100 500 50 – 3 2 6 General Dry 1B (SPNC)
105-1-B 1kV StandOff Reed 1000 3000 3000 New 150 1 – 1 15(5V), 20 200 750 250 100 1.2 General Dry 1 – Reed 15.1 (0.595) 10E12 Ω 150 – 1 General 0.2 0.5 Reed 170 Dry 10.7 (0.42) 1 – 1 10E9 10E8 10E7 2kV StandOff 3300 200 1000 3000 1 1 500
1A (SPST) 6.6 (0.26) Level Dry 2A (DPST) 119-1-A 500 200 Low Level Dry Reed 75 105-2-A 10E12 Ω Reed 2 – Low 150 0.5 10 2000 6800 6800 – 2 120 1.2 0.5 10 2 3.7 (0.145) Standard 10E11 Ω Mercury Switch 1000 500 100 100 375 3kV StandOff 1.5 50 2 1 – 3 6 High Voltage Switch 400 125 2200 1.75 1.75 50 150 3 –
– 4 1A (SPST) 100-1-A General 10E7 10E8 10E9 103-1-A &103M-1-A Reed 20.1 (0.79) 150 Dry 10E12 Ω 15 Capacitance 1 – 1 – – 10E7 10E8 10E9 1000 1.25 19.1 (0.75) 1A (SPST) 170 Yes 500 0.5 0.2 0.7 4.8 (0.19) 8.1 (0.32) 10 10E12 Ω Mercury Switch 10E9 10E8 10E7 Low
200 150 Yes 0.2 1.2 0.5 12.7 (0.5) 1kV StandOff Low Level Standard Dry Reed 2A (DPST) 8.9 (0.35)
2000 500 100 119-2-A 120 50 0.5 10 – 3 6 2 – 2 – – 1 –
Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation 10E11 Ω 3300 2 2 Direct Drive From CMOS - Low Thermal EMF DriveDirect From - Low CMOS Thermal Position Insensitive 1kV StandOff 1B (SPNC) General Dry 10.0 (0.39) 3.7 (0.145) 2.5 x10E8 1A (SPST) 6.6 (0.26) Switch 400 100 10E12 Ω 1000 50 111-1-A 370 120 500 50 Reed 10E6 10E7 – 3 8 2 1 – 150 500 200 170 Yes 0.5 0.5 0.5 0.2 5 – – 1 Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation 15.1 (0.595) 3.7 (0.145) 8.9 (0.35) 119-1-B 24.1 (0.95) 10.2 (0.40) 2kV StandOff 1B (SPNC) (1000 forhighsensitivityversion) Yes General Dry 15(5L), 20 Reed 1C (SPDT) 2 – 150 Dry Reed 10E10 Ω 100-1-C – 1 – 1 10E6 10E7 10E8 3300 6800 6800 0.25 200 1 – 1 3 3 1A (SPST) 10E12 Ω 109-1-A 10E9 10E7 10E8 1000 500 200 1.2 0.2 0.5 Stand Off 1 (1kV) 1kV 500 6.6 (0.26) Low Level Dry Reed General DryReed 120 330 10E12 Ω 0.5 10 – 2 1000 3000 150 375 1B (SPNC) 0.3 0.5 10 1 1 - 100-1-B Stand Off 2 (1.5kV) 170
1.5kV 1 – 1 1 1000 15.1 (0.595) 3.7 (0.145) 200 1.2 24.1 (0.95) 1A (SPST) 8.2 (0.32) 1C (SPDT) 104-1-A Dry Reed 10E11 Ω 109-1-C Yes 10E8 10E6 10E7 0.75 250 150 100 0.1 0.1 0.5 30 3 – – 3 Standard 6 (1.5kV) 10E11 Ω Mercury 10E12 Ω Switch 1500 General Dry 2700 6000 6000 120 100 500 500 1.5 50 0.5 10 1 3 – 2 Reed 200 1 – 1 1
1B (SPNC) 15.2 (0.60) 109-1-B 10E7 10E8 10E9 120 750 Low LevelDryReed Stand Off 10E12 Ω 3 (3kV) – – – 1000 3000 3kV 150 220 500 1.5 25 1 - 8.9 (0.35) 10E12 Ω Low Level Dry Reed 2A (DPST) 10E9 10E7 10E8 200 1.2 0.5 0.5 0.2 100-2-A 10 2 180 1 – 1 2 2A (DPST) Stand Off 6.3 (0.245) 10E12 Ω 109-2-A 1 (1kV) 140 375 750 1kV 500 10E7 10E8 10E9 – – Yes 1B (SPNC) Mercury Switch 104-1-B 2000 3000 750 Standard 10E11 Ω – 1000 3300 370 150 500 50 Stand Off 2 (1.5kV) 10E12 Ω 2 – 2 3 6 2 15(5V), 20 1.5kV 1000 Dry Reed General 0.3 1 150
– 1 – 1 1A (SPST) 200 0.5 10E12 Ω 10 108-1-A 1
10E9 10E7 10E8 12.5 (0.49) 0.5 0.2 29 (1.14) Stand Off 10E12 Ω High Voltage 1 (1kV) Low Level 6.6 (0.26) 1kV 500 Dry Reed – High Voltage Contact Resistance/mΩ Max Initial Switch Power/W Carry Current/A Switching Current/A Switching Voltage/V Diode Available operations Expectancy/ Life mm (inches) Dimensions Features Physical Outline Series Name Application Operate Time/ms Release Time/ms Insulation Resistance/Ω Reed Switch Type Switch Schematic Contact Configuration Switch Number Resistance Coil 1000 500 120 330 0.5 10 – 2 2000 250 750 2A (DPST) Stand Off 2 (1.5kV) 10E12 Ω 104-2-A 1.5kV 1000 20.0 (0.79) 3.7 (0.145) 1C (SPDT) – Dry Reed 10E10 Ω 108-1-C 10E8 10E6 10E7 200 Yes Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation 0.25 1.2 200 0.5 3 1 – – 3 Max Load Min Load Typical Height 24V/Ω 12V/Ω Depth Width 5V/Ω 3V/Ω Standard 6 (1.5kV) 10E11 Ω Mercury SoftCenter® Switch 1000 150 275 500 1.5 50 50 – 1 3 2 General Dry 15(5V), 20 Reed 170
Metal Package SIL – 1 – 1 2A (DPST) General Dry 8.9 (0.35) Construction inMu-MetalCan Construction 10E12 Ω Scaled 50% 108-2-A Stand 3500 10E9 10E7 10E8 1000 5kV 375 Reed Off 0.5 0.2 150 1 1.2 15 1 – 1 – Low Level Dry Reed 150 500 50 15.25 (0.6) 3.9 (0.154) – 6.8 (0.27) 1A (SPST) 150 0.5 62/63-1-A 10 – – 2 Stand 10kV 7500 200 0.5 0.2 Off 2 10E12 Ω Low Level Dry Reed 1000 500 120 250 1.2 0.5 General Dry 10 15(5V), 20 – 2 12500 Stand 15kV 19.05 (0.75) 350 21.3 (0.84) Off 25 75 Reed 63.5 (2.5) 10E12 Ω – 3 150 1 – 1 10E6 10E7 10E8 120 No 50
3 2 3 3 10E9 10E7 10E8 200 0.5 0.2 Stand Off Dry Reed High Volt 3500 5kV 10E12 Ω Low Level Dry Reed 1A (SPST) 1 150 500 1.2 0.5 0.5 0.2 10 1000 3000 200-1-A – 4 – 500 1.2 120 500 1B (SPNC) 62/63-1-B 2 150 500 50 – 0.5 10 Stand Off 1A (SPST) Mercury Wet 10kV 7500 107-1-A 10E7 10E8 10E9 Standard Voltage Switch 2 10E8 10E6 10E7 Reed High 0.75 0.25 150 400 500 500 140 75 50 20.0 (0.79) – 4 3 2 – 6 – 9.0 (0.35) 7.6 (0.3) 10E10 Ω Scaled 50% Scaled Only SurfaceReed Mount Only Relay Available with Stand Standard 3500 Mercury 5kV Off 1.25 Switch Surface Mount 1 Position Insensitive Mercury Wet Reed 500 2 75 50 2 3 – 6 150 500 Robust TungstenPlated Switches 35 10E11 Ω – 1A (SPST) 60/65-1-A 10E9 10E7 10E8 1500 Highest Quality Instrumentation Grade Reed Grade SwitchesHighest QualityInstrumentation
1.25 Yes 140 500 Stand 100 500 500 140 10kV 7500 50 2 Off 3 2 – 8 – 2 Insensitive Position Switch 100 350 50 2 2 – 8 12500 Stand 15kV 200 Off 19.1 (0.75) 18.0 (0.71) 57.9 (2.28) 16.0 (0.63) 20 50 – 3 10E12 Ω 5.85 (0.23) 10E6 10E7 10E8 120 No 50 3 2 3 3 1C (SPDT) Dry Reed 10E10 Ω 107-1-C 15.25 (0.6) 2A (DPST) 10E8 10E6 10E7 1000 3000 Low Level 0.25 6.8 (0.27) Dry Reed 200 500 10E12 Ω 0.5 Stand 200-2-A 4.8 (0.19) 3500 3 – 1 3 5kV Off 1000 120 200 400 1 1.2 0.5 0.5 0.2 10 Yes – 2 – 1B (SPNC) 60/65-1-B 150 500
35 General Dry – 1B (SPNC) Stand Off 107-1-B Reed 3000 1000 3000 150 10kV 7500 1 – 1 2 15(5V), 20 1C (SPDT) 20.0 (0.79) 200 SoftCenter® Construction 9.0 (0.35) Dry Reed 1.2 10E11 Ω 200-1-C 10E6 10E7 10E8 1000 0.25 200 200 500 1.2 0.5 3 – 3 1 – 10E12 Ω Dry Reed General Scaled 50% Scaled 0.5 0.2 1000 3000 Stand Off 170 New 500 1 – 1 3500 5kV 1 10E9 10E7 10E8
Low Level 2A (DPST) Dry Reed 10.2 (0.4) 107-2-A 1B (SPNC) 15.25 (0.6) 1000 3000 Low Level 6.8 (0.27) Dry Reed 150 500 10E12 Ω 0.5 10 200-1-B – 2 Stand Off 10E7 10E8 10E9 1000 120 200 750 1.2 0.5 0.5 0.2 10 10kV 7500 – 2 – 2 12.6 (0.495) 14.5 (0.57) 1A (SPST) 67/68-1-A 58.4 (2.3) 10E12 Ω 10E6 10E7 10E8
120 150 600 Yes 50 40 Standard 3 2 – 3 3 Mercury omACail1Form Coaxial 1 FormACoaxial Switch 1 23567 1000 1.25 100 375 100 500 50 Form A Form B Stand Off – 2 3 2 6 (10.2) 0.125 (7.6) 0.30 0.40 (3.3) 3500 5kV Pin 1 1 PIC ERING ELECTRONICS 102M Package 4.00 (0.154)
10E11 Ω 15.25 (0.6) 1A (SPST) ESSE . ENGLAND. CLACTON-ON-SEA. 0.10 (2.54) Low Level 6.8 (0.27) Dry Reed 10E12 Ω 0.10 (2.54) 200RF 10E7 10E8 10E9 (19.1) 0.75 120 200 250 1.2 0.5 0.5 0.2
10 0.20 (5.08) – 2 – - 2C (DPDT) 24.1 (0.95) Dry Reed 0.10 (2.54) Surface MountRF 1 23567 107-2-C
0.10 (2.54) Stand Off 10E8 10E6 10E7 1000 2700 (0. 0.25 220 200 375 200 0.02 1.2 0.5 508) 10kV 7500 3 1 3
(4.8) 2 0.19 (0. 0.01 254) (0. 0.02 508) Yes Dry Reed Reed Switch Type Operate Time/ms Footprint (0.1inchgrid) Switch Schematic Contact Configuration Contact Resistance/mΩ Max Initial Release Time/ms Features Physical Outline Application Switch Power/W Carry Current/A Insulation Resistance/Ω Series Name Switching Current/A Switch Number Diode Available Switching Voltage/V General Switch Power/W Contact Resistance/mΩ Max Initial Switch Schematic Contact Configuration Switching Current/A Carry Current/A Footprint (0.1inchgrid) Switching Voltage/V Operate Time/ms Release Time/ms Insulation Resistance/Ω Features Physical Outline Application Series Name Diode Available Switch Number Reed Switch Type 1000 Max Load Max Load Min Load (5.08) 500 300 Min Load 1.2 0.5 0 connection screen copper foil connection switch dia. (5.06) 0.2 10 Typical .2 Height 12V/Ω 24V/Ω Typical Height 12V/Ω 24V/Ω – 1 Depth Width Depth Width 3V/Ω 5V/Ω 3V/Ω 5V/Ω 102F Package (5.08) 13.5 (0.53) 1A (SPST) (3.8) 0.15 0 4.8 (0.19) .2 Suggested PCBcut-out 10E12 Ω 102F-1-A 7.6 (0.3) 0.55 (14)x0.35(8.9) 10E7 10E8 10E9 0.53max (13.5) ELECTRONICS 200 100 0.5 0.2 PIC ERING 0.5 (12.7) (5.08) 0 .2 Higher Power operations Expectancy/ Life Resistance Coil mm (inches) Dimensions operations Expectancy/ Life mm (inches) Dimensions Resistance Coil Dry Reed (0.8) 0.03 1000 375 1.2 20 1 – 2 – (4.8) 0.19 (7.6) 0.30 0.125 (3.3)
pickeringrelay.com
pickering pickeringrelay.com LIT-028 Reed Relay Types Reed Relay Basics the coilisoperatedfrom5Vor3.3Vandthatcurrent(power)requirementsinareminimized. A significantfactorinsomedesignsistheabilitytodrivereedrelayswithstandardCMOSlogic,requiringthat Larger coilscanbeusedtoreducepowerconsumption,butthatincreasesthesizeofrelay. strands ofwiretwistedtogethertoincreasetheirphysicalstrength. Whenever finewiresareusedinPickeringrelays,theterminationleadsfromcoilsskeinedwithseveral current flowingthroughthecoilandthereforepowerconsumeswhencontactsareclosed. requirements anddifferent coilpowers. The resistanceofthewire coil controlstheamountofsteadystate Use ofdifferent wiregaugesforthecoilandnumberofturnscreatesrelayswithdifferent drivevoltage operate, sothecoilsrequiremorepower. higher powerlevelsorhighvoltageswitcheswithlargercontactgaps,usuallyrequire AT numbersto of turns. Again thiscreatesagreatdealofvariationinthereedrelaycharacteristics.Stiffer reedswitchesfor in termsoftheampereturns(AT) –simplytheproductofcurrentflowingincoilmultipliedbynumber Different reedswitchesrequiredifferent levelsofmagneticfieldtoclosethecontact,andthisisusuallyquoted contacts. generates theaxialmagneticfieldneededtoclosereed to acontrolsignal. The coilsurroundsthe reed switchand coil whichcanhaveacurrentpassedthroughinresponse doors closing)butforreedrelaysthefieldisgeneratedbya can beusedwithpermanentmagnets(forexampletodetect capable ofclosingthereedswitchcontacts.Reedswitches To createarelaymagneticfieldneedstobecreatedthatis Generating themagneticfield with bothsubtleandnotsodifferences inperformance. It isthesecompromisesinreedswitchdesignthatgivesrisetothevastrangeofrelaysareavailable signal carryingcapability. is critical. The largerswitchesmaybemoremechanicallyrobustandhavegreatercontactarea,improvingtheir area. Smallerreedswitchesallowsmallerrelaystobeconstructed–animportantconsiderationwherespace are oftenmadeofthinnermaterialssotheydeflectmoreeasilybutthisimpactsontheirratingandcontact (measured byangleofdeflection)asshortswitchestocloseagivengapsizebetweentheblades.Shortreeds Another designvariableonthereedswitchisitssize.Longerswitchesdonothavetodeflectbladesasfar for thecontactischosentobestsuittargetperformance. Tungsten isoftenusedforhighpowerorvoltagereedswitchesduetoitsmeltingpoint. The material are ruthenium,rhodiumandiridium–allofwhichintherelativelyrareplatinumpreciousmetalgroup. stability; othersresistthemechanicalerosionthatoccursduringhotswitchevents.Commonlyusedmaterials on thereedswitch(andthereforerelay)characteristics.Somematerialshaveexcellentcontactresistance The materialsusedforthepreciousmetalcontactareasinsideglassenvelopehaveasignificantimpact the glassenvelope. soldered orweldedintothereedrelaypackage,usuallyrequiringadif metal hermeticseal.Outsidetheglasssealreedbladeshavetobesuitablyfinishedallowthem any plating(inmanycasestheremaybenone)requirescontrollingtoavoidadverselyaffecting theglassto contacts areoftenreferredtoas“dry”reedrelays.Wherethebladepassesthroughglassenvelope adherence. Sometypesofreedrelayusemercurywettedcontacts,consequentlyrelaysthatplated may notsticktothebladematerialverywellsoanunderlyingmetalbarrierberequiredensuregood contact, sothereedbladeshavetoapreciousmetalcoverincontactarea, Ferromagnetic materialisnotagoodconductorandinparticularthedoesmakeswitch contamination. This givesthereedswitchanexceptionallylongmechanicallife inert gasses,orinthecaseofhighvoltageswitchesavacuum,soswitchareaissealedagainstexternal are nopartsthatmechanicallywear. The contactareaisenclosedinahermeticallysealedenvelopewith trying toslidepasteachother. The reedswitchisconsideredtohavenomovingparts,andthatmeansthere The onlymovablepartinthereedswitchisdeflectionofblades,therearenopivotpointsormaterials contact andelectricalismade. are attractedtoeachotherandthebladesdeflectclosegap.Withenoughappliedfieldmake ferromagnetic nature,theopencontactsofreedblades the fieldisintensifiedinreedbladesbecauseoftheir If amagneticfieldisappliedalongtheaxisofreedblades normal state. Most (butnotall)reedswitcheshaveopencontactsintheir entering thecriticalcontactareasinsideglassenvelope. and toprovideahermeticsealthatpreventsanycontaminants envelope thatservestobothholdthemetalbladesinplace ferromagnetic material(roughly50:50nickeliron)andglass The reedswitchhastwoshapedmetalbladesmadeofa Reed Switch is asimpledeviceandrelativelylowcosttomanufacture. switch andthecoiltooutsideofpackage. The reedswitch the coil,apackageandmethodofconnectingtoreed magnetic field,anoptionaldiodeforhandlingbackEMFfrom Reed relayscontainareedswitch,coilforcreati contact weld)willnotstop the othercontactfrommoving. between 50-250microSeconds betweenthem.Failureinone(saya essentially independent. There couldbeanoperate timedifference of poles operateatexactlythe sametimeandthetworeedswitchesare mechanism betweenthetwo,itisunsafetoassumethat thatthetwo It isimportanttorememberthattheserelaysdonothave aninterlock coil drive. by acommon operated and in thesamepackage are contained switches Reed relayscanalsobesuppliedas2polewhere tworeed Two Pole Relays drive anditismechanicallynotpossibletohaveboth contactsclosedatthesametime. unlike theuseoftwonormallyopenreedrelaysused tocreateachangeoverfunctiontheyonlyneedonecoil simpler normallyopencounterparts.Evenso,theyperform ausefulfunctionformanyapplicationsbecause that theyhaveaslightlylessstablecontactresistancethantheir different characteristicsandstability. Experienceisgenerally contacts, normallyclosedandopen,canhavequite harder tomanufacturethannormallyopenreedrelaysthetwo created bythespringbiasofblade. As wellasbeingmuch The normallyclosedpositionreliesoncontactpressurebeing some applications. period neithercontactisclosed–andimportantconsiderationin relay switchbladestransitionbetweenthetwostatesforabrief open contactbladewhichdoesnothavethisspacer. As thereed magnetic circuit. The coilfieldmovesthebladetonormally as aspringbiaswithnonferrousspacertoavoidcompleting field isapplied). Thereedswitchclosedcontactusestheblade is applied)andanormallyopencontact(whichcloseswhenthe switch hasanormallyclosedcontact(whennomagneticfield Reed relayscanbesuppliedwithchangeoverswitches–thereed Changeover Reeds pickering Glass Capsule Reed Blade Glass Capsule Inert Gas Reed Blade S Pole Inert Gas Glass Capsule ferent platingfinishtothatusedinside COM Reed COM Reed Inert Gas S Pole Non-Ferrous Spacer Reed Blade Reed Blade Axial MagneticField Applied Contact No Axial Field No Axial N Pole N Pole S Pole Contact OFF Contact ON S Pole Contact Gap Reed Blade Contact Contact Plating (Normally Closed) (Normally Closed) (Normally Open) (Normally Open) Contact Gap Reed Blade Contact Plating Reed Blade Reed Reed Reed Reed NO NO NC NC Coil N Pole Reed Blade Reed Blade N Pole Coil reed relays. operation soreedswitches havetobecarefullymanagedastheyarepackaged into duration asthecontactsopen orclose. Any lossofsealwillrapidly degrade theswitch to maximisethevoltagerating foragivenbladeseparationandtomanagearc The glassenvelopeforhigh voltagereedswitchesisnormallyaveryhardvacuum commonly usetungstenor rhodiumcontacts. contact erosionthatoccurwhenswitchingthesignals. Highvoltagereedswitches carefully matchoperatingenvironmentanddifferent contactmaterialstoresistthe (including thedistancebetweencontactsinreed switch)havetoa High voltagereedrelaysinadditiontohavingensure highclearancedistance High Voltage Reed Relays exceptions onRoHShavebeengranted. and nationalregulationsmaylimittheirusetocertain criticalapplicationswhere be usedinanyorientation.Mercurywettedrelayshowever arenotRoHScompliant vertical orientation.Somenonpositionsensitiveversions arealsoavailablewhichcan Most typesofmercuryreedrelaysarepositionsensitive –theycanonlybeusedina life isconsideredtobebetterthanthatofdryreedrelays. under hotswitchconditions.Stabilityoflowcontactresistanceduringtheiroperational contact lifeandbouncefreeclosure–afeaturethatisparticularlyhelpful These relaysarestronglypreferredinsomeindustriesbecausetheyhavealong electrical parameters. 14 bar)whichhelpstomanagetheswitchmaterialsandoperationimprove The glassenvelopeofmercuryrelaysisalsohighlypressurised(typically12to do notsticktogetherandthisisusedtohelpcontrolthemercury. Selective chromeplatingisoftenusedintheconstructionsincemercuryand tension toretainthematerial. grooved surfaceonthereedbladetocontactareausingmercury’s highsurface mercury isprovidedbyasmallreservoirwhichbladeactuationtendstopumpup contacts includemercurythatprovidestheelectricalcontactbetweenblades. The There isaclassofreedrelaysthathasbeenhistoricallyverypopularwherethe Mercury Reed Relays variability. remanent magnetismcanaltertheoperatingpointofrelayandcreatecontact interrupted. Magneticshieldsusingothermaterialsaregenerallytobeavoidedsince and thematerialhasalowabilitytoretainmagneticfieldwhencoilcurrentis low frequenciesandDC.Itdeflectsanyexternalmagneticfieldaroundtherelaybody or anexternalmu-metalcan.Mu-metalisusedbecauseithasahighpermeabilityat Pickering relaysuseeitheraninternalmu-metalscreeninsidetheplasticpackage parameters likethermoelectricemfgeneration. the coil.Lowercoiloperatingcurrentsmakedrivingsimplerandimprovesother the reedbladesandcreatingalargerfieldforgivennumberofampereturnsin field linesclosertothereedswitchbody, shorteningthemagneticfieldlengthoutside the addedbenefitofimprovingcoilefficiencysinceitconcentratesmagnetic then freetousealayoutpatternthatbestsuitstheapplication. The approachhas package, anapproachusedbyPickeringElectronicsformanyyears. The useris A muchmoresensibleapproachistoincludeamagneticshieldinthereedrelay many nearneighbors. this canbecomeacomplexcompromiseindensearraysofrelayswherethereare relays indifferent polaritypatternstomitigatetheworsteffect oftheinteraction,but depending onthemagneticpolarity. Somemanufacturerssuggestarrangingthe circumstances causeenougheffect thattherelaymayeitherfailtocloseoropen reed, changingthecurrentneededtocloseoropencontact. This caninsome the neighboringreedbladesandeitherreinforceofpartiallycancelfieldin several relaysareplacedclosetogethertheexternalfieldlinescanbedrawnby reed bladesandreturnsbyfieldlineswhichareoutsidetherelaybody The magneticfieldrequiredtoclosethereedbladesflowsthroughnickeliron when theyareassembledindensepatternsonPCBs Because reedrelaysaremagneticallyoperatedcausesapotentialproblemforusers Protection againstMagneticInteraction If relaysaretobecloselypackedtogetherthenarelayshouldchosenwith an integratedmagneticshield. . If double throw(DPDT). double throw(SPDT).Iftherelayhastwocontactssetsitwouldbedescribedas2FormCcontacts,orpole closed whentherelayisenergized.Forasinglethiswouldalsobeknownaschangeoverswitchorpole This referencedescribesarelaywithtwocontactpositions,thenormallyclosedandwhichbecomes Form C(Change-over -break-before-make) position isclosed. This referencedescribesarelaywhosecontactissimpleswitchwhichopenorclosedandtheun-energized Form B (DPST). If therelayhasmultiplecontactsinsamepackageitwouldbedescribedashaving(forexample)2Form A contacts relay withanormallyopen(NO)contact. position istheopencondition.Forasinglerelaythiswouldalsobedescribedaspole,throw(SPST) This referencedescribesarelaywhosecontactissimpleswitchwhichopenorclosedandtheun-energized Form A of thesetermsarefamiliartousers. The followingsectionseekstodescribetheserelayterms. The relayindustryhasevolvedwithasetofitsownnomenclaturethatdescribestheproductsareavailable,notall Relay Terminology required oftoday’s equipmentmanufacturers. Pickering relaysfeaturetheveryhighestquality‘instrumentation grade’ reedswitches tomeettheexactingdemandsandlonglife Highest Grade Reed Switches operating andrestoringforces.Insomeranges,thistechnique allowsPickeringtoachieveextremelyhighcoilresistancefigures. percent moreroomforthecoilwinding,allowinguse oflesssensitivereedswitcheswiththeirinherentadvantageshigher supporting coils,thusavoidingthespacerequiredforthesebobbins.Incaseofsmallerrelaystypes, thisgivesaround50 Relay operatingcoilsarecommonlywoundonbobbins. The greatmajorityofPickeringrelaysaremanufacturedwithself Formerless Coils resistance stabilityandlifeexpectation. used bymostothermanufacturerscancausestressesthatpotentiallydamagethereedswitchanddegrade contact Pickering ReedRelaysareencapsulatedusingasoftinnermaterialtoprotectthereedswitchcapsule. The veryhardcompounds SoftCenter Pickering Electronics’ Reed Relay rangeisavailableon samplesof non-working A PCBcontaining FREE request. To learn moreaboutourunique technologyvisit:
® Technology pickeringrelay.com/softcenter
Free Literature andSamples Evaluation samplesavailable Common Common Common Common Common Common The ReedRelayMate available asprintedcopyorpdfformat. home pageofPickeringElectronics’ websiteandis The ReedRelayMate to driveandplacereedrelaycoils. a comparisonwithotherrelaytechnologiesandhow affect theiroperation,howtochoosethecorrectrelay, types thereare,howtheywork,whatparameters you’ll findouthowreedrelaysareconstructed,what a publicationwhichlooksindetailatreedrelays.Init on request. FREE Energised De-energised De-energised Energised Normally closed Normally closed Normally open Normally open De-Energised Energised Pickering
isavailable from PickeringElectronicsis downloaded fromourwebsite. sales department,oritcanbe available onrequestfromour Pickering Electronics’ Product Catalogueis fromthe free
SoftCenter lowest voltagerelaycoilsarethemostvulnerabletothistypeofproblem. Consequently reedrelaysshouldhaveareasonableoperatingmargintoensurereliableoperationinallconditions. The External magneticfieldsmightalterthecoilcurrentneededtoachieverequiredfieldstrength. Actual powersupplyvoltagecanvarybothfromproducttoandacrossaPCBuseddistributeit. The coildriverswillhaveanoutputresistancewhichmaybesignificant. significantly. (25°C), sobythetimemaximumratedtemperatureofrelayisreachedcoilcurrentcanhavedroppedvery As temperaturerisesthecoilresistance(by0.39%per°C),voltagesaremeasuredatmoretypicaltemperatures There arefourprincipalreasonsforthismargin: pick upvoltageandreleasethisisusuallyatasignificantlylowerthanthenominalcoilrequired. One factoroftenignoredbyusersistheimpactoftemperatureoncoilcurrent.Datasheetsforrelayswillcommonlyshowa For manyapplications5Vcoilsareconsideredagoodcompromise. Ultimately thislimitsthehighestvoltagecoilsthatcanbeoffered. as coilvoltageincreasesthewireusedtocreaterelaybecomesfinerandharderwindwithoutbreakages. LED driverscandirectlysupporteither5Vor12Vcoils,opencollectorevenhighervoltages.However, EMC transients. voltage suppliesarecommonlylessefficientthanhighersupplies),lossesonPCBtracesandthecreationoflarger is increased.Forsomeapplicationshighcoilcurrentsareundesirable–theymightleadtopowerlossinsupplies(low have toacertainnumberof Ampere Turns aspreviouslynoted, soascoilvoltageisdroppedthecurrentrequired choice sincethesevoltagesaredirectlycompatiblewithcommonlogicfamilies.However, allthecoilsfora givenreedswitch Reed relaysaresuppliedwithawidevarietyofcoilvoltageoptions.Forlogicdriving3.3Vand5Vdrivesthepreferred Coil Voltage surge thanatransistor. voltage thepeakinstantaneousenergydissipatedismuchlower, andadiode isgenerallydesignedtobetterhandlethis voltage thediodeconductsandclampsoutputvoltage. As thediodeclampvoltageismuchlessthanbreakdown Pickering’s solutionforthisistoincludeadiodeprotectthedriver, whenthedriveroutputrisesabovecoilsupply enter voltagebreakdown. This isalargeimpulseloadforthedriverandmayresultinprematurefailure. only bycharacteristicssuchascoilordrivercapacitance.Eventuallythevoltagerisewilllimitoutputstartsto to fallzerocollapsethemagneticfieldincoil.Sodriveroutputvoltagerisesrapidly current triestodrop,buttheopencollectordrivehasnoconductionpathallowthishappen. The conductedcurrenthas limited bytheresistanceofrelaycoil.Whenopencollectoristurnedoff thevoltageonoutputtriestoriseand Assuming therelaycoildriveroperateswithanopencollectordrivethenwhiledrivingdeviceisoncurrentflow coil fromtheBackEMFthatisgeneratedwhencurrentflowinterrupted. The purposeofthisdiodeissometimesmisunderstood,itpresentprimarilytoprotectthedevicethatdrivingrelay EMRs). Reed relaysoftenhaveachoicetoincludeaninternalprotectiondiodeornot(incomparisonthisisneverthecasewith Diode orNo such asfootprintarea,relayratingsandheight. used. Outsideoftheseapplicationsthechoiceisdrivenbyusermanufacturingpreferencesandcomponentchoices For applicationswhererelaysmayhavetobeservicedPickeringElectronicsrecommendthatthruholecomponentsare assembly. operator skills.Itismorelikelytheitemcanbeservicedlocally, anditislesslikelytocausedamageelsewhereinthe circumstances thruholecomponentsaremucheasiertomanageandrequirenospecialistde-solderingtoolsorhigh the componenttoberemovedbutalsoadjacentcomponentsaresubjectheating,solderreflowandstress.Inthese Removing surfacemountedcomponentsisanintrusiveprocedure–evenusingspecialistde-solderingtoolsnotonly relay beingdamaged. materials orwhere(asisthecasein ATE systems)connectiontofaultydevicesorevenprogrammingerrorscanresultinthe could beconsideredtoaserviceitemifitisfrequentlyexposedhotswitchingeventswhichmightwearoutthecontact most applications.However, thechoiceismoredifficultwhenrelayconsideredtobeapotentialserviceitem. Therelay Manufacturing processesmayprefertouseSMDcomponents,inwhichcasetherearesolutionsavailablefor magnetic shieldpreventsproblems). interaction canbearealproblemonsomesystems(thoughnotPickeringElectronicsbasedsolutionswherethebuiltin is notalwaysthecasewithreedrelays.Reedrelaysareparticularlysmalldevicesbymodernstandardsasmagnetic With othercomponenttypesthechoicemaybedriveninpartbydensitythatcanachievedonaPCB,howeverthis Users oftenhaveachoiceofusingthruholecomponentsorsurfacemountpackagesforreedrelays. SMD orThruHoleMounting voltage acrossthecontacts. If hotswitchingisnotexpectedtohappenthentheusercanrelyoncarrycurrentratingandwithstandrated with theseextremesofvalue. A 10Wreedrelayforexamplewillonlyswitcha100V, 100mA signalreliably. rating ofthereedrelay, thefactapart
® Technology , therateofrisebeinglimited consequently wereservetheright tovaryfromthedescriptionsgiveninthisdocument. Pickering Electronicsmaintainsacommitmenttocontinuousproduct development, China: email: Germany: email: USA: email:[email protected] | Tel. +17818971710 Worldwide contacts: UK Headquarters:email:[email protected] | Tel. +441255428141 Main contact: high coileffi ciency, lowswitchvolumeandPCBfootprintsolutionstomeetthedemandsofmodernequipmentmanufacturers. Working withitssistercompany,Interfaces (pickering Pickering counts thecompanyhasrefi ned itsassemblyandqualitycontrolmethodstooptimisemanufacturingmethods. performance andreliabilityatanaffordable price. Through theexperienceofsupportingmostdemandingmanufacturerslarge ATE systemswithhighrelay Pickering Electronicsoffer anextensiverangeofhighqualityinstrumentation gradereedrelaysdesignedforapplicationsrequiringthehighestlevelsof facilities. PickeringElectronicss.r.o. is100%ownedbyPickeringElectronicsLtd.,England. Manufacturing issharedbetweentheUKfactoryandalargemodernplantin Trinec, CzechRepublic,withstrictQualityControlandISO2001certifi cation atboth Today, theUKfacilityisresponsibleforProductDevelopment, Technical Back-up,Sales,Marketingand Administration. automatic testequipment. Pickering ElectronicswasformedinJanuary1968todesignandmanufacturehighqualityreedrelays,intendedprincipallyforuseinstrumentation out Pickering Electronics For afulllistofagentsandrepresentatives visit: LIT–028 Issue5 © PickeringElectronics2018– All rightsreserved Reed Relay Finder Reed Relay Finder SoftCenter Direct DrivefromCMOS Ultra HighPackingDensity Coaxial/RF/High SpeedDigital Highest QualityInstrumentationGradeReedSwitches High Power High Voltage Low Capacitance EMF Low Thermal Custom ReedRelays Up to50WSwitching pickering pickering [email protected] [email protected] SoftCenter Direct Sales&SupportOffi ces
Technology | Tel. 075583745452 | Highest Grade Reed Switches | Mu-Metal Magnetic Screens | Custom Designs |Mu-MetalMagneticScreens |HighestGradeReedSwitches | Tel. +4989125953160 pickeringrelay.com/agents Pickering lectronics Pickering lectronics high qualityrangeofReedRelays,includingtheirbasicspecifi cations. ), Pickering Electronics has developed innovative reed relay solutions designed to provide designed reed relay solutions innovative has developed test.com), PickeringElectronics The ReedRelayFinderisasinglesheetreferencetoPickering’s ISO9001 Manufactureof Reed RelaysFM29036 SoftCenter ® pickeringrelay pickeringrelay .com .com