4JB5-2 Miniature Magnetic Latching Relays

  • This product is designed to switch 50 Vd.c. system voltage, fill the gaps between domestic and foreign varieties, is a military standard product, and all technical indicators meet the requirements of GJB65B general specifications. Suitable for aerospace, aviation electrical equipment switching circuits.

Description

4JB5-2 Miniature Magnetic Latching Relays

Environmental Characteristics

No. Parameter Environmental Condition
1 Quality Grade Ⓙ, G G5B Aerospace GJB
II IV
2 Temperature range (℃) -55~85 -65~125
3 Relative Humidity (40±2) ℃, 90%~95%
4 Low Pressure (kPa) 0.67~0.27 0.67~0.13 0.67~0.27 4
5 Sinusoidal vibration (Hz) 10~2000
(m/s2) 147 196
6 Random vibration (m/s2)2/Hz 25 20
7 Shock (m/s2) 490 735 784 980 735
8 Constant Acceleration (m/s2) 490 735 490 735

 

Main Characteristics 

(The following main technical indicators are listed in the GJB and CAST grade product specifications. For other quality grade product parameters, please refer to the respective specifications.)

Contact arrangement 4PDT Action Time (ms) ≤10
Coil Power (W) 1.4 Release time (ms)
Leak Rate (Pa.cm3/s) ≤1×10-3 Contact load Resistive I 5A, 28 Vd.c.
Contact resistance (Ω) Initial ≤0.03 Resistive II 3A, 50 Vd.c.
After Life ≤0.1 Inductive 0.2A, 28 Vd.c., 200mH
Insulation resistance (MΩ) Normal ≥10000(100Vd.c.) Lamp 0.2A, 28 Vd.c.
High Temp./ Humidity ≥100(100Vd.c.) Low level 10μA~50μA, 10mV~50mV
Dielectric withstand voltage (50Hz) Normal 500 Vr.m.s Life time (cycles)

Grade I: 1×105

Grade II: 1×104

Low pressure 250 Vr.m.s
Weight(g) ≤50 Overload Rating Resistive, 10A, 28 Vd.c.
Failure Rate L level

 

Electrical Specification

(The following main technical indicators are listed in the GJB and CAST grade product specifications. For other quality grade product parameters, please refer to the respective specifications.)

Specification number Coil Voltage 20℃ Overall temperature range
Normal Max Coil resistance

(1±10%) Ω

Operating voltage (max) Release voltage (min) Operating voltage (max) Release voltage (min)
028 28 30 560 18 26(24)

 

Dimensions
 Note: Vibration sensitive direction: Vertical
Circuit Diagram Resistive Load Diagram

 

Order Mark

  • GJB grade products:

Example: J65 /RY20031-028 L/3 2 4JB5-2

J 65 / RY20031 028 L / 3 2 4JB5-2
Military sign General specification Detailed specification No. Coil voltage Failure rate Mounting style Terminal type Product number

Detailed specification: Q/RY20031-2003

 

  • CAST grade products:

Example: 4JB5-2- 28BZ1

4JB5-2 28 B Z1
Product number Coil voltage Mounting style Quality Level

Detailed specification: CASTPS06/002A-2008

 

  • (G5B) Grade military products:

Example: 4JB5-2/II28 B

4JB5-2 / II 28 B
Product number Environmental rating Coil voltage Mounting style

Detailed Specification: Q/RYJ0115-91

 

  • G and J grade products:

Example: 4JB5-2/II28 B

4JB5-2 / II 28 B
Product number Environmental rating Coil voltage Mounting style

Detailed specification: RY0.453.004JT