G103C Space & Military Umbilical Connector

G103C umbilical connector is used to achieve connections and rapid auto-disconnection of circuit, gas path and electrical control between the aircraft and emitter or between the carriers of the aircraft.

​​Environmental Characteristics

No. Parameter Environmental Specification
1 Quality Grade
2 Temperature Range (℃) -40~+100
3 Relative Humidity (40±2) ℃, 95%
4 Low Pressure (kPa) 0.67
5 Sinusoidal Vibration (Hz) 10~2000
(m/s2) 100
7 Shock (m/s2) 200
8 Acceleration (m/s2) 300


Main Characteristics

Current and Number of Contacts 5A, 94 groups

20A, 4 groups

50A, 4 groups

Positioning, 1 group

Dielectric withstanding voltage (Vr.m.s) (50Hz) Normal ≥1000
Low pressure ≥200
Contact voltage (Vd.c.) 60 or 115 Va.c. Weight(g) Plug≤600, Receptacle≤400
Insertion torque (N.m) ≤3 Socket hermetic performance (Mpa) 0.2
Contact Resistance (Ω) Initial ≤0.005 Connection Pins and jacks
After Life ≤0.01 Life Time (Cycles) 2×103
Insulation Resistance (MΩ)

(500 Vd.c.)

Normal ≥1000 Dimension (mm) Plug: 100×50×181
High Temp./Humidity ≥500 Receptacle: 90×130×84



G103C plug Dimension G103C socket Dimension
G-103C Hermetic plug G-103C Hermetic receptacle

Order Mark

Example: G—103C/Ⓙ

G 103 C /
Product mark Number of contact groups and positioning part Product index Quality grade

Standard: Q/RY.J0121 -1991

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