MT-Relay

Picture MT-Relay

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.

Characteristics

  • 4.0 kVDC isolation voltage
  • 1 or 2 coil design available
  • Dry or HG-wet form A or form C switches

Dimensions

Tolerance +/- 0.10mm (0.004 inch)

Dimension Drawing

Relay Data

Operating temperature (°C) -20/+70 (Hg wetted -20/+55)
Storage temperature (°C) -25/+85
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
Cleaning Fully sealed

 

Contact Data

Contact type 71 88 90
Contact form A/dry A/HG C/dry
Rated power max. (W) 5 35 1
Switching voltage max. (VDC) 150 500 100
Switching current max. (A) 0.2 0.5 0.01
Carry current (A) 0.5 1.0 0.5
Contact resistance max. (mOhm) 200 60 500
Insulation resistance min. (Ohm) 1010 1010 109
Breakdown voltage min. (VDC) 200 1000 150
Operating time incl. bounce typ. (ms) 0.5 3.0 no bounce 1.0
Pulse duration min. (ms) 5 10 10
Shock at 11ms max. (g) 15 5 15
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
(VDC)
Coil resistance +/- 10%
(Ohm)
Pull-in voltage maximum
(VDC)
Maximum voltage 20°
(VDC)
1A 71 5 6400 3.5 8
5/5 2800 3.5 8
1A 88
Hg wetted
5 1550 3.5 8
5/5 680 3.5 8
1C 90 5 10000 3.5 8
5/5 2500 3.5 8

Other coil voltages can be realized through a pre-resistance.

Diagram view from component side (pitch 2.54 mm / 0.1 inch)

1 1
Footprint Footprint
2 2
Footprint Footprint

 

Application suggestion

  • 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.

Order information

Example for ordering

MT 05 – 1C90 – 2

MT relay, 5V coil voltage, 1 form C contact type 90, 2 coil version

Part Inquiry

Your Name (required)

Your Email (required)

Your Address (required)

City (required)

State (required)

Zip (required)

I am interested in

Additional Commments

×