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B-Series

Standard Reed Relay for telecommunications
and test equipment with all standard pinnings.

Now with many BABT approved versions, this popular style of Reed Relay offers a cost effective solution to many switching applications. Available with either plastic or metal case, the standard series use higher than normal coil resistance giving low current consumption and making them ideal for many battery driven systems.
The wide range of switch options when combined with the 4.25 kVDC isolation between coil and contact makes the B-Series the obvious choice for many telecommunication  applications where reliability for difficult loads is essential.

Dimensions

Dimension Drawing

Relay Data
Shock at 11ms max. (g) 35 (wetted 10)
Vibration at 50 - 500 Hz max. (g) 20 (wetted 5)
Operating temperature (°C) -20/+70 (wetted +55)
Storage temperature (°C) -25/+85
Isolation coil/contact min. (kV) 2.0 DC (4.25 DC / 3.0 AC at sundry diagrams)
Insulation coil / contact min. (GOhm) 10
Life expectancy Dependent upon load, consult factory
Solder time max. 5 sec./260 °C
Cleaning Fully sealed

 

Contact Data
Contact type 71 88 90
Contact form A/dry A/HG B/C/dry
Rated Power max. (W) 10 50 3
Switching voltage max. (VDC) 200 1000 175
Switching current max. (A) 0.5 1.0 0.25
Carry current (A) 1.0 2.0 1.2
Contact resistance max. mOhm 150 60 150
Breakdown voltage (contact/contact) min. (VDC) 250 1500 200
Operating time incl. bounce (ms) 0.5 2.5 no bounce 0.7
Release time (ms) 0.3 2.0 1.0

Data at 140% of the nominal voltage and 20°C.
Other switches by request.

Coil Data with switch type 1A71 (Data at 20°C)
Contact form Contact type Diagram Nominal voltage
VDC
Coil resistance +/- 10%
Ohm
Pull-in voltage maximum
VDC
Drop-out voltage minimum
VDC
Maximum voltage 20°
VDC
Maximum voltage 60°
VDC
Rated power
mW
1A 71 110/113 5 500 3.5 0.75 26.8 16.7 50
5-HR 1000 3.5 0.75 33.0 20.0 25
12 1200 8.4 1.8 41.6 25.8 120
12-HR 2200 8.4 1.8 56.4 34.9 66
24 3000 16.8 3.6 65.8 40.8 192
48 10000 33.6 7.2 33.0 74.5 230
 

Coil Data with switch type 1A88 (Data at 20°C) Contact form Contact type Diagram Nominal voltage
VDC
Coil resistance +/- 10%
Ohm
Pull-in voltage maximum
VDC
Drop-out voltage minimum
VDC
Maximum voltage 20°
VDC
Maximum voltage 60°
VDC
Rated power
mW
1A 88 110/113 5 140 3.5 0.75 14.2 8.8 179 12 750 8.4 1.8 32.9 20.4 192 24 3000 16.8 3.6 58.9 36.5 240 48 9000 33.6 7.2 114.0 70.7 256  

Coil Data with switch type 1C90 (Data at 20°C) Contact form Contact type Diagram Nominal voltage
VDC
Coil resistance +/- 10%
Ohm
Pull-in voltage maximum
VDC
Drop-out voltage minimum
VDC
Maximum voltage 20°
VDC
Maximum voltage 60°
VDC
Rated power
mW
1C 90 150/153 5 500 3.5 0.75 26.8 16.7 50 12 1200 8.4 1.8 41.6 25.8 120 24 3000 16.8 3.6 65.8 40.8 192 48 10000 33.6 7.2 120.0 74.5 230 Other coils by request

Diagram

View from component side (pitch 2.54mm / 0.1 inch)

 
 


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