4JT5-3 Small General-purpose Relay

  • The relay is a small general-purpose relay with permanent magnet drive structure, which has the characteristics of switching power volume, large weight-to-power ratio, fast action speed, large life index margin. Improved reliability and stable quality made it suitable for missile electrical control systems, and can also be used in other military automatic control circuit.

Description

4JT5-3 Small General-purpose Relay

​Environmental Characteristics

No. Parameter Environmental Specification
1 Quality Grade Ⓙ, G J/K
II IV
2 Temperature Range (℃) -55~85 -55~125
3 Relative Humidity (40±2) ℃, 90%~95%
4 Low Pressure (kPa) 0.67~0.27
5 Sinusoidal Vibration (Hz) 10~2000
(m/s2) 147 196
6 Random vibration (m/s2)2/Hz 10 30
7 Shock (m/s2) 490 735
8 Constant Acceleration (m/s2) 490 735

 

Main Characteristics

(The following table list J/K product indicators, other quality levels, please refer to their respective specifications)

Contact Arrangement 4PDT Operating Time (ms) ≤8
Coil Power (W) 1.96 Release Time (ms) ≤8
Leak Rate (Pa.cm3/s) ≤1×10-2 Load Ratings Resistive 5A, 28Vd.c.
Contact Resistance (Ω) Initial ≤0.05 Inductive 0.75A, 28V d.c., 200mH
After Life ≤0.1 Electric motor 0.5A, 28V d.c.
Insulation Resistance (MΩ) Normal ≥10000 (100Vd.c.) Low level

10μA~50μA,

10mV~50mV

High Temp./Humidity ≥100 (100Vd.c.) Life Time (Cycles) 5×104
Dielectric Strength (50Hz) Normal ≥500 Overload rating Resistive, 20A, 28V d.c.,
Low pressure ≥250 Weight (g) ≤35

 

Electrical Specification

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

(1±5%) Ω

Operating Voltage max Release Voltage (min) Operating Voltage max Release Voltage (min)
06 6 8 18 3.5 0.5 5 0.1
012 12 14 70 7 0.8 10 0.3
028 28 32 400 18 2.5 24 1

 

Dimensions
  
Mounting Style A(0) Mounting Style B(3) Mounting Style C(2)
Note: Vibration sensitive direction: Vertical

 

Circuit Diagram Resistive Load Diagram

 

Order Mark

  • J/K grade products:

Example: J2888/RY.J01123-028 / 2 1 4JT5-3

J 2888 / RY.J01123 028 / 2 1 4JT5-3
Military sign General specification No. Detailed specification No. Coil voltage Mounting style Terminal form Product number

Detailed specification: Q/RYJ01123-2007

 

  • Military G grade products:

Example: 4JT5-3/II 28 C

4JT5-3 / II 28 C
Product number Environmental rating Coil voltage Mounting style

Detailed specification: RY4.500.013JT