2JS12-1 Hybrid Delay Relays

  • This product is a standard type 1 (action delay) hybrid delay relay, with the advantages of small volume, wide voltage range of application, resistant to harsh environment, resistance to transient and instantaneous power failure of power supply. Within the prescribed temperature range, it has the advantage of delay stability and high accuracy. This product is available for time control sequences in aerospace, aviation and ground equipment.


2JS12-1 Hybrid delay Relays

Environmental Characteristics

No. Item Environmental Characteristics
1 Ambient temperature -55 °C ~ 85 °C
2 Low air pressure 0.67 kPa ~ 0.27 kPa
3 Relative humidity 40°C±2°C, 90%~95%
4 Sinusoidal vibration 10 ~2000 Hz, 147 m/s2
5 Shock 490 m/s2, 6ms
6 Constant acceleration 490 m/s2
Order mark RY4.546.019JT: 2JS12-1/28 C

Note: The accuracy of the delay and the mounting style should be stated when ordering.


Main Specifications

Delay type Type 1 (action delay) life 1 × 104 times or 50h
Rated operating voltage 28 Vd.c. Contact resistance ≤0.05 Ω before life

≤0.10 Ω after life

Operating voltage range 24Vd.c.~32Vd.c. Insulation resistance ≥100MΩ, 250Vd.c
Input current ≤50mA Dielectric withstand voltage 50 Hz, 500Vr.m.s., 60s, 1mA
Delay range 0.1~500s (expandable) Leak rate ≤5×10-1 Pa.cm3/s
Delay accuracy ±2%(T>1s)

±5% (0.1s≤T≤1s)



B(3), C(2), C1(1)≤30g

Recycling Time ≥500ms Dimensions 25mm× 15mm×22.5mm
Rated load 28 Vd.c., 2A (resistive) Mounting style A(0), B(3), C(2), C1(1)
Output form DPDT


Mechanical drawings
2JS12 1 1 Mounting Style A 0 - 2JS12-1 Hybrid Delay Relays 2JS12 1 1 Mounting Style B 3 - 2JS12-1 Hybrid Delay Relays 2JS12 1 1 Mounting Style C1 1 - 2JS12-1 Hybrid Delay Relays 2JS12 1 1 Mounting Style C 2 - 2JS12-1 Hybrid Delay Relays
Mounting Style A (0) Mounting Style B (3) Mounting Style C1 (1) Mounting Style C (2)
Note Vibration sensitive direction: Horizontal


Timing Diagram Circuit drawing Load characteristic diagram
2JS12 1 1 Timing Diagram - 2JS12-1 Hybrid Delay Relays 2JS12 1 1 Circuit drawing - 2JS12-1 Hybrid Delay Relays 2JS12 1 1 Load characteristic diagram - 2JS12-1 Hybrid Delay Relays