Bistable Reed Relays
The MT series offers a selection of bistable Reed Relays. This means, the contact pulls in after a positive impulse for example and remains in its new position even after cutting off the nominal voltage. It will move back to its initial position by a negative impulse. This offers the advantage of no power consumption between the switching actions. The required switching power is very low so that the drive can be realized by a CMOS gate.
- 4.0 kVDC isolation voltage
- 1 or 2 coil design available
- Dry or HG-wet form A or form C switches
Tolerance +/- 0.10mm (0.004 inch)
|Operating temperature||(°C)||-20/+70 (Hg wetted -20/+55)|
|Isolation coil / contact||min.||(kVDC)||4.0|
|Insulation coil / contact||min.||(Ohm)||1010|
|Life expectancy||Dependent upon load, please refer to factory|
|Soldering time/temperature||max.||5 sec./260 °C|
|Operating time incl. bounce||typ.||(ms)||0.5||3.0 no bounce||1.0|
|Vibration||at 50 – 500 Hz||max.||(g)||5||2||5|
Data at 140% pull-in energization and 20°C. Other switches on request.
Coil Data 1 and 2 coil design (Data at 20°C)
|Contact form||Switch type||Nominal voltage
|Coil resistance +/- 10%
|Pull-in voltage maximum
|Maximum voltage 20°
Other coil voltages can be realized through a pre-resistance.
Diagram view from component side (pitch 2.54 mm / 0.1 inch)
- 1 coil types: To operate the relay from the output stage of a CMOS gate, we suggest the use of a RC combination with the value from 10 to 20 ms. This ensures reliable switching from both the positive and negative going edges of any square wave signal generated by the CMOS circuit (see diagram).
- 2 coil types: At this types one coil can apply to switch on and the other coil to switch off.
Example for ordering
MT 05 – 1C90 – 2
MT relay, 5V coil voltage, 1 form C contact type 90, 2 coil version