4JG-4A Small General-purpose Relay

  • The product is an innovative development for satellite power control, long-term service satellite model, with reliability growth and high reliability. The indicators comply with the GJB2888 General Specification and the GJB2888/5-2011 single specification requirements. Applicable to all types of aircraft control circuits and power distribution systems.

Description

4JG-4A Small General-purpose Relay

Environmental Characteristics

No. Parameter Environmental Specification
1 Quality Grade Ⓙ, G GJB J/K
II IV
2 Temperature Range (℃) -55~85 -65~105
3 Relative Humidity (40±2) ℃, 90%~95%
4 Low Pressure (kPa) 0.67~0.27 4.39
5 Sinusoidal Vibration (Hz) 10~2000
(m/s2) 147 196
6 Random vibration (m/s2)2/Hz 20
7 Shock (m/s2) 490 735
8 Constant Acceleration (m/s2) 490 735

 

Main Characteristics

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

Contact Arrangement 4PDT Operating Time (ms) ≤20
Coil Power (W) 2.9 Release Time (ms) ≤10
Leak Rate (Pa.cm3/s) ≤1×10-2 Load Ratings Resistive I 20A, 28Vd.c.
Contact Resistance(Ω) Initial ≤0.02 Resistive II 10A, 28V d.c.
After Life ≤0.1 Inductive 2A,28V d.c., 200 mH
Insulation Resistance (MΩ) Normal ≥10000(100Vd.c.) electric motor 1.5A, 28V d.c.
High Temp./Humidity ≥100(100Vd.c.) Low level 10~50 µA, 10mV~50mV
Dielectric Strength (50Hz) Normal ≥500 Life Time (Cycles)

Resistive I: 5×103

Resistive II: 5×104

Low pressure ≥350 Overload rating Resistive, 40A, 28V d.c.
Weight (g) ≤105 Failure rate L level

 

Electrical Specification (V d.c.)

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

(1±10%) Ω

Operating Voltage (max) Release Voltage (min) Operating Voltage (max) Release Voltage

(min)

 015 15 17 70 9.5 1.2 12.5 0.5
028 28 30 270 18 2 24 1

 

Dimensions Circuit Diagram Resistive Load Diagram
  Mounting Style C (2)

Note:

  • Vibration sensitive direction: Horizontal
  • The thickness of the laser welding product installation is 1.5mm, and the tin seal product is 1 mm.

 

Order Mark

  • GJB standard products:

J2888/RY20010-028 L/25 4JG-4A

J 2888 / RY20010 028 L / 2 5 4JG-4A
Military sign General specification No. Detailed specification No. Coil voltage Failure rate Mounting style Terminal form Product number

Detailed specification: Q/RY20010-2002

 

  • J/K grade products:

J2888/RY20053-028 L/25 4JG-4A

J 2888 / RY20053 028 L / 2 5 4JG-4A
Military sign General specification No. Detailed specification No. Coil voltage Failure rate Mounting style Terminal form Product number

Detailed specification: Q/RY20053-2003

 

  • G grade military product:

4JG-4A/II28 C

4JG-4A / II 28 C
Product number Environmental rating Coil voltage Mounting style

Detailed specification: Q/RYJ0113A-2000