2JT15-1 Small General-Purpose Relay

  • This product is one of the 1/2 cubic inch series of relays. Its function, performance and external dimensions are equivalent to those of similar western products. It has the advantages of small size, light weight, high switching power and high environmental performance index. It can be used by satellite, spacecraft, missile, ship and ground equipment automatic control systems.


2JT15-1 Small General-Purpose Relay

Environmental Characteristics

No. Parameter Environmental Specification
1 Quality Grade Ⓙ, G
II IV No environmental rating
2 Temperature Range (℃) -55~85 -55~125
3 Relative Humidity (40±2) ℃, 90%~95%
4 Low Pressure (kPa) 100~0.27 0.67~0.27
5 Sinusoidal Vibration (Hz) 10~2000
(m/s2) 147 196 294
6 Shock (m/s2) 490 735 980
7 Constant Acceleration (m/s2) 490 735 980


Main Characteristics

Contact Arrangement DPDT Operating Time (ms) ≤15
Coil Power (W) 2.4 Release Time (ms) ≤15
Leak Rate (Pa.cm3/s) ≤1×10-2 Load Ratings Resistive I 15A, 28V d.c.
Contact Resistance(Ω) Initial ≤0.05 Resistive II 10A, 28V d.c.
After Life ≤0.15 Low level 10μA~50μA, 10mV~50mV
Insulation Resistance (MΩ) Normal ≥500(500Vd.c.) Overload rating Resistive, 30A, 28V d.c.
High Temp./Humidity ≥10(500Vd.c.) Life Time (Cycles)

Resistive I: 1×104

Resistive II: 2×104

Dielectric Strength (50Hz) Normal ≥500
Low pressure ≥250 Weight (g) ≤50


Electrical Specification (V d.c.)

Specification No. Coil Voltage 25℃ Overall Temperature Range
Normal Max Coil resistance

(1±5%) Ω

Operating Voltage (max) Release Voltage (min) Operating Voltage (max) Release Voltage (min)
028 28 30 340 18 2 24 1


Mounting Style B (3) Mounting Style C (2)
Note: Vibration sensitive direction: Vertical


Circuit Diagram Resistive Load Diagram


Order Mark

  • G grade products (with Environmental rating)

Example: 2JT15-1/II 28 B

2JT15-1 / II 28 B
Product number Environmental rating Coil voltage Mounting style

Detailed specification: Q/RYJ0168-2001


  • G grade products (No Environmental rating)


2JT15-1 28 B
Product number Coil voltage Mounting style

Detailed specification: Q/RYJ0168-2001