MS-Relay

High-voltage Reed Relays for pcb mounting

The LI-series realizes the maximum spatial distance between coil and switch in the smallest possible housing. Our design allows isolation voltages of > 4,25 kVDC and resistances > 10 GOhm to be achieved. Breakdown voltages from 250 to 4000 VDC are available for form A contacts. Space saving package of only 30 x 10 x 10,4 mm.

Typical Applications

  • High-voltage test systems e.g. cable and in-circuit test equipment
  • Battery operated high-voltage test equipment
  • Ex-approved applications

Dimensions

Tolerance +/- 0.10mm (0.004 inch)

Relay Data

Operating temperature (°C) -20/+70
Storage temperature (°C) -35/+95
Isolation coil / contact min. (kV) 4.25 DC/3.0 AC
Insulation coil / contact min. (Ohm) 1010
Life expectancy Dependent upon load, please refer to factory
Soldering time/temperature max. 10 sec./260°C
Cleaning Fully sealed

 

Contact Data

Contact type 71 75 79 85
Contact form A/dry A/dry A/dry A/dry
Rated power max. (W) 10 10 25 100 VA
Switching voltage max. (VDC) 200 500 1000 1000
Switching current max. (A) 0.5 0.5 1.0 1.0
Carry current max. (A) 1.0 1.0 2.0 2.5
Contact resistance max. (mOhm) 150 200 150 150
Insulation resistance min. (Ohm) 1010 1010 1011 1010
Breakdown voltage min. (VDC) 250 1500 2500 4000
Operating time incl. bounce typ. (ms) 0.5 0.5 0.8 1.1
Releasing time typ. (ms) 0.1 0.1 0.4 0.25
Shock at 11ms max. (g) 150 30 50 30
Vibration max. (g)
(Hz)
10
10-2000
30
50-1500
50
50-1000
35
10-2000

Data at 140% pull-in energization and 20°C. Other switches on request.

Coil Data (Data at 20°C)

Contact form Switch type Nominal voltage
(VDC)
Coil resistance +/- 10%
(Ohm)
Pull-in voltage max.
(VDC)
Drop-out voltage min.
(VDC)
Maximum voltage 20°C
(VDC)
Maximum voltage 60°C (at Hg 50°C)
(VDC)
Nominal power
(mW)
1A 79
85
5 200 3.5 0.75 15.1 9.4 122
12 680 8.4 1.8 26.5 16.4 211
24 2000 16.8 3.6 44.9 27.8 286
1A 71
75
5 450 3.5 0.75 22.0 13.6 55
12 1200 8.4 1.8 35.0 21.7 119
24 3600 16.8 3.6 59.0 36.6 159

 

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

Footprint

Order information

Orderinfo

Example for ordering

LI 12 – 1A79

LI relay, 12V coil voltage, 1 form A switch 79

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