The JF3-38ZK/TJ separation (disconnect) electrical connector belongs to the mature and reliable JF3 series. It adopts a direct plug locking and mechanical separation structure, and is used for electrical signal transmission and rapid disconnection between rockets and ground equipment, meeting the requirements for aerospace-grade applications.
The JF3-38ZK/TJ separation (disengagement) electrical connector complies with the Q/21EJ2132 standard. It adopts a handwheel locking or direct insertion locking method, and achieves rapid disengagement through mechanical separation. The termination method is welding. It is widely used in aerospace, shipbuilding, aviation and other systems, meeting the electrical connection and rapid disengagement requirements in harsh environments.
[Environmental Performance]
Operating Temperature: -55°C to +125°C
Flame: 850°C, 80 seconds
Operating Air Pressure: 101.33 kPa to 22 Pa
Rain Protection (Mated Condition): 5 mm/min
Salt Spray: 48 hours
[Mechanical Performance]
Random Vibration: 0.4 G²/Hz, overall RMS acceleration 26.4 G
Sinusoidal Vibration: 200 m/s²
Shock: 1200 m/s²
Acceleration: 500 m/s²
Mechanical Life: 500 cycles
Mechanical Separation Force: 100 N ~ 200 N
Separation Speed: < 3 m/s
[Electrical Performance]
Rated Current and Contact Resistance
| Contact Specification | Rated Current (A) | Contact Resistance (mΩ) | Number of Contacts |
|---|---|---|---|
| Φ1.5 | 10 | ≤8 | 34 |
| Φ10 | 200 | ≤10 | 4 |
Withstanding Voltage
| Operating Condition | Test Voltage (50Hz, AC RMS) V |
|---|---|
| Normal Temperature and Pressure | 1500 |
| Damp Heat | 500 |
| Low Air Pressure (22Pa) | 200 |
Insulation Resistance
| Operating Condition | Normal Temperature (MΩ) | High Temperature / Low Temperature (MΩ) | Damp Heat (MΩ) |
|---|---|---|---|
| Between Contacts and Between Contacts and Shell | ≥1000 | ≥500 | ≥20 |
Aerospace: Electrical connection and rapid disconnection between launch vehicles, missiles, and ground launch equipment
Marine: Connection for deployment and recovery of shipboard equipment, underwater towed systems, and unmanned underwater vehicles
Aviation: Electrical quick-disconnect for drones, aircraft pylons, and ground support equipment
Electrical Connection: Provides power supply, signal transmission, and control command delivery between ground equipment and aerospace vehicles
Rapid Disconnection: Pull cord trigger with built-in spring ejection for instant separation, separation speed < 3 m/s
Dual Locking Methods: Handwheel locking or direct plug locking, reliable mating and convenient operation
High Current Capacity: 4 pieces of Φ10 contacts, rated current 200 A, meeting high-power power supply requirements
Flame Resistance: Withstands 850°C flame exposure for 80 seconds, suitable for special application scenarios
Low Air Pressure Adaptability: Operating air pressure range from 101.33 kPa to 22 Pa, suitable for high altitude and vacuum environments
Strong Environmental Adaptability: Operating temperature -55°C to +125°C, salt spray resistance 48 hours, vibration resistance, shock resistance
High Reliability: Compliant with Q/21EJ2132 standard, mechanical life of 500 cycles
Adopts a ball-lock + ejection separation mechanical structure, 38-core hybrid contact layout (34 signal contacts + 4 high-current contacts), featuring flame resistance, low air pressure resistance, wide operating temperature and other characteristics, compliant with GJB 10165-2021 standard, suitable for aerospace, aviation, marine and other harsh environment systems.
Separation Mechanism Design: Utilizes ball-lock + spring ejection mechanical separation structure, stable and controllable separation force, ensuring reliable instant disconnection
Hybrid Contact Layout: Mixed configuration of signal contacts and high-current contacts, meeting both multi-channel signal transmission and high-power power supply requirements
Environmental Design: Features flame resistance, low air pressure resistance, wide operating temperature, suitable for harsh environments such as aerospace launch applications
High Reliability Design: Mechanical life of 500 cycles, contact resistance change ≤150%, meeting aerospace-grade product requirements

Authorized HL Distributor: 100% genuineJF3-38ZK/TJ Separation (Detachment) Electrical Connector, Compliant with standard: Q/21EJ1302
Military Application Expertise: Our engineering team specializes in defense and aerospace interconnection solutions, providing precise product matching.
Rigorous Qualification Testing: Every batch undergoes vibration, sealing, and electrical performance testing to ensure reliability.
Customization Speed: Rapid response to custom design requests for tight-deadline military and telecommunication projects.
Global Logistics Network: Efficient delivery to defense contractors, telecommunication providers, and aerospace manufacturers worldwide.
Lifetime Technical Support: 24/7 assistance for installation, maintenance, and troubleshooting of critical communication systems.


Q: What is the rated current?
A: 34 signal contacts at 10 A, 4 high-current contacts at 200 A.
Q:How does separation work?
A: Pull cord trigger, spring ejection, instant disconnection.
Q: Is it flame resistant?
A: Withstands 850°C flame exposure for 80 seconds.
Q: What environments can it be used in?
A: -55°C to +125°C, low air pressure down to 22 Pa, salt spray resistance 48 hours, vibration resistance, shock resistance.
Q:What are the main application areas?
A: Aerospace, marine, aviation and other systems.
When the project requires high current supply, flame resistance, low pressure tolerance, rapid disconnection, high reliability, and is applied in harsh environments such as aerospace, aviation, and ships, the JF3-38ZK/TJ detachable electrical connector can be selected.
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