The Y3B series connector, an upgraded version of the Y3A series, complies with Chinese military standards GJB2905-2004 and GJB101A-97. With a higher working current than the Y3A series, it is designed for push-pull quick coupling and easy release, providing enhanced performance and reliability in demanding applications.
Y3B series circular electrical connector
Part number
Y3B 12 04 T J 2
Basic series
Shell No.
10, 12, 16, 20
Contact number
01, 03, 04, 07, 12, 19
Type of connector
T = Plug
Z = Receptacle
Type of contact
J = Pin
K = Socket
Type of back shell
2 = Jam cable connecting
2a = Big jam cable connecting (only for shell 20)
3 = Reperfusion for sealant
5 = Heat shrinkable sleeve series I
5a = Heat shrinkable sleeve series II
10 = Square flange
Performance specification
Operating temperature range: -55 oC ~ +125 oC
Shock: Max acceleration 490 m/s2
Relative humidity: 90 ~ 95% at 40 ± oC
Endurance: ≥ 500 cycles
Contact resistance and current rating:
| Diameter (mm) | Φ 1.5 | Φ 2.5 | Φ 3.5 | Φ 5.0 | Φ 10.0 |
| Current (A) | 10 | 25 | 50 | 60 | 200 |
| Resistance (mΩ) | ≤ 3 | ≤ 1 | ≤ 1 | ≤ 1 | ≤ 1 |
Insulation resistance:
| Sea level | High humidity | High temperature |
| ≥ 1000MΩ | ≥ 20MΩ | ≥ 500MΩ |
Withstanding voltage:
| Y3B series | Voltage (V) |
| Sea level | 1000 |
| 21000m | 250 |
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