LI-
Series

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.

 

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 2.54mm / 0.1 inch)

Order information

Example for ordering

LI 12 - 1A79

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

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