1JS51-1

1JS51-1 Space & MIL-Spec Time Delay Relay

The product is a 1-way output of two-stage delay relays, mainly used for aerospace models of blunt-sensitive pyrotechnics control, and the output is a common power positive type. After the first-level delay, the circuit is turned on to delay the detonation of the pyrotechnics; the second-stage delay closes the circuit after maintaining sufficient detonation time, which can avoid unnecessary consumption of power by the pyrotechnic electric bridge wire. According to strong anti-interference and harsh environment characteristic, it can be used for other time program control of aerospace, aviation and ground equipment.

1JS₅1-1 Solid Time Delay Relays

No.	Item	Environmental conditions
1	Quality Grade	Military (Ⓙ)	Aerospace (CAST)
2	Ambient temperature	-55 °C ~ 125 °C
3	Low air pressure	0.67 kPa～0.27 kPa	11.59 kPa
4	Sinusoidal vibration	10 Hz～2000 Hz, 196 m²/s	10 Hz～3000 Hz, 196 m²/s
5	Random Vibration	—–	30 (m/s²)²/Hz
6	Shock	735 m/s², 6ms
7	Constant acceleration	735 m/s²
Order mark		RY4.546.060JT: 1JS₅1-1/28 Note: The accuracy of the delay and the installation method should be stated when ordering.	CASTPS06/037A-2008: 1JS₅1-1-28 X t1t2 Z1 Note: The accuracy of the delay and the installation method should be stated when ordering.

Delay type		Type 5 (user defined)	Output form		1 group normally open
Operating voltage range		18 VDC~32 VDC	Rated load		28 VDC, 1A (resistive)
Rated operating voltage		28 VDC	Life time		1 × 10⁶ cycles or 50h
Delay range	Military	t1: 0.05s～500s t2: 0.03s～30s	Dielectric withstand voltage		250 Vr.m.s., 60s, 1mA
	Aerospace	t1: 0.05s～500s t2: 0.03s～500s
Input current		12mA	Insulation resistance		1000 MΩ, 500 VDC
Recycling Time	Military	≥50 ms	Leak rate	Military	≤1×10-1 Pa.cm³/s
	Aerospace	≥4 s		Aerospace	≤1×10-2 Pa.cm³/s
Power supply instantaneous power off	Military	50 μs	Weight		≤12 g
	Aerospace	200 μs	Dimensions		20.5mm×10.5mm×15mm
Delay accuracy		±2 %	Mounting method		A(0), C1(1), C(2), B(3)