YF6A-59ZK or TJ Separation (Breakaway) Electrical Connector

YF6A-59ZK/TJ Separation (Breakaway) Electrical Connector | Fireproof & Explosion-Proof with 59 Hybrid Contacts

The YF6A‑59ZK/TJ Separation Connector series delivers an exceptional combination of high‑density hybrid contacts, fire/explosion protection, and low mating torque in a single, rugged breakaway interface. With 59 contacts available in two sizes—Φ1.0 (5 A) for signal circuits and Φ2.0 (20 A) for power—this connector handles complex system requirements without needing multiple interfaces. The receptacle is certified to withstand 850°C flame for 80 seconds, ensuring survival in engine fire zones and post‑crash scenarios. The low mating torque design simplifies operation in confined spaces, while the calibrated 60–100 N separation force and ability to withstand 8 m/s pull and 1500 m/s² acceleration during separation guarantee reliable release in dynamic environments. Solder termination, proven vibration/shock resistance, and aerospace‑grade qualification make the YF6A‑59 the preferred choice for launch vehicles, aircraft pylons, and naval combat systems.

Product Descriptions from the Supplier

The YF6A‑59ZK/TJ Separation (Breakaway) Electrical Connector is a high‑density, hybrid interconnect solution engineered for applications requiring both signal and power circuits within a single, fire‑protected separation interface. Fully compliant with enterprise standard Q/21EJ275, this connector features 59 solder‑terminated contacts in two sizes: Φ1.0 contacts rated at 5 A each with a maximum contact resistance of 10 mΩ for signal circuits, and Φ2.0 contacts rated at 20 A each with an ultra‑low maximum contact resistance of 3 mΩ for power distribution.

The defining features of this series include:

• Fireproof & Explosion-Proof Receptacle: Withstands 850°C flame for 80 seconds, ensuring critical system integrity during fire events
• High-Density Hybrid Contact Set: 59 total contacts (configurable mix of Φ1.0 and Φ2.0) for complex signal and power requirements
• Low Mating Torque: Optimized coupling mechanism reduces operator effort and simplifies engagement in confined spaces
• Dynamic Separation Capability: Engineered to withstand 8 m/s pull velocity and 1500 m/s² acceleration during separation events

The mechanical separation mechanism is calibrated to release with a force of 60–100 N, providing a secure hold during operation while ensuring positive separation when commanded.

All contacts are terminated via solder cups, a dependable, field‑serviceable method suitable for prototyping, maintenance, and production. The connector operates from -55 °C to +125 °C and survives severe dynamic conditions: sinusoidal vibration of 150 m/s², random vibration of 0.3 G²/Hz (20 Grms), shock of 735 m/s², and constant acceleration of 30 g. With a mechanical life of 500 mating cycles, these connectors are suitable for ground testing and operational reuse.

Dielectric withstanding voltage is 1000 V AC rms at sea level, derated to 250 V under humidity and 150 V at low pressure. Insulation resistance exceeds 1000 MΩ at room temperature, remains ≥500 MΩ at high temperature, and maintains ≥20 MΩ after humidity testing, ensuring long‑term reliability.

Available in two configurations:

• YF6A‑59TJ: Plug (cable‑attached half) with pin contacts
• YF6A‑59ZK: Receptacle (panel‑mount half) with socket contacts (fireproof/explosion‑proof)

Typical applications include launch vehicle umbilicals, aircraft external store separation, naval combat system connections, and any application requiring high‑density hybrid circuits with fire protection and low mating torque.

Specifications

[Mechanical Specifications]

[Environmental Specifications]

[Electrical Specifications – Contacts]

Note: Total of 59 contacts, configurable mix of Φ1.0 and Φ2.0.

[Dielectric Withstanding Voltage]

[Insulation Resistance]

[Ordering Configurations]

Applications

• Launch Vehicles: High‑density umbilical disconnects with fire protection.
• Aircraft: External store separation with mixed power/signal circuits.
• Naval Systems: Combat system connections requiring fire‑safe interfaces.
• Missile Systems: Canister launch interfaces with complex circuit requirements.
• Spacecraft: Stage separation with high‑density telemetry and power.
• Industrial: Hazardous area disconnects requiring explosion protection.

Functionality

• Fireproof/Explosion-Proof Receptacle: Withstands 850°C flame for 80 seconds.
• Hybrid Contact Set: Configurable mix of 5 A signal and 20 A power contacts (59 total).
• Low Mating Torque: Easy engagement in confined spaces reduces operator fatigue.
• Controlled Separation Force: Calibrated 60–100 N breakaway ensures positive release.
• Dynamic Separation Capability: Withstands 8 m/s pull velocity and 1500 m/s² acceleration.
• Solder Termination: Reliable, field‑serviceable connections for all contacts.
• Environmental Robustness: Withstands extreme temperature, vibration, shock, and acceleration.

Key Features​​​​​​​

• 59 High-Density Contacts: Handles complex system requirements in a single connector.
• Dual Contact Sizes: 5 A signal and 20 A power circuits with ultra‑low resistance (Φ2.0 ≤3 mΩ).
• 850°C Fire Protection: Certified for engine fire zones and post‑crash scenarios.
• Low Mating Torque: Operator‑friendly design for confined installations.
• Dynamic Separation Qualification: Tested to 8 m/s pull and 1500 m/s² acceleration.
• Aerospace‑Grade Qualification: Tested to rigorous vibration, shock, and acceleration standards.
• Solder Termination: Simple, reliable, and field‑serviceable without special tooling.
• 500‑Cycle Life: Suitable for ground testing and multiple mission uses.
• Wide Temperature Range: -55 °C to +125 °C suits harsh environments.

Custom Design

The YF6A‑59 platform can be adapted to meet unique mission requirements:

• Custom Contact Mix: Adjust the quantity of Φ1.0 and Φ2.0 contacts to match specific current needs.
• Separation Force Adjustment: Modify breakaway force for specific release requirements.
• Enhanced Fire Rating: Higher temperatures or longer durations available on request.
• Special Materials: Select shell finishes for enhanced corrosion resistance.
• Cable Assembly Integration: Complete harness solutions with soldered contacts and overmolding.
• Non‑Standard Testing: Additional screening for high‑reliability programs.

Why Choose MXTD​​​​​​​

At MXTD, we specialize in separation connectors that combine high density, hybrid capability, and extreme environmental protection. The YF6A‑59 series exemplifies our engineering excellence—offering 59 configurable contacts, 850°C fire resistance, low mating torque, and dynamic separation qualification in a single, field‑proven package. Manufactured under strict enterprise standard Q/21EJ275, each YF6A‑59 undergoes comprehensive testing including separation force verification, fire resistance certification, contact resistance measurement, and environmental qualification. Our team brings decades of experience in aerospace and naval separation systems, working closely with customers to ensure that every interface meets the unique demands of the mission. When you choose MXTD, you're partnering with a dedicated team focused on the success of your program, from prototype to production.

FAQ

Q: What makes the YF6A‑59 unique among separation connectors?
A: It combines 59 high‑density hybrid contacts (5 A and 20 A), 850°C fire protection, low mating torque, and dynamic separation qualification (8 m/s pull, 1500 m/s² acceleration) in a single package.

Q: What is the separation force range?
A: 60–100 N, calibrated for positive release.

Q: What are the available contact sizes and ratings?
A: Φ1.0 contacts rated at 5 A (≤10 mΩ) and Φ2.0 contacts rated at 20 A (≤3 mΩ). Total of 59 contacts, configurable mix.

Q: What is the fire resistance rating?
A: The receptacle withstands 850°C flame for 80 seconds.

Q: What is low mating torque and why is it important?
A: Low mating torque reduces the force required to engage the connector, making it easier to operate in confined spaces and reducing operator fatigue.

Q: What dynamic separation capabilities does it have?
A: It withstands 8 m/s pull velocity and 1500 m/s² acceleration during separation events.

Q: What termination method does this series use?
A: Solder termination for all contacts.

Q: What vibration and shock levels can it withstand?
A: Sinusoidal vibration 150 m/s², random vibration 0.3 G²/Hz (20 Grms), shock 735 m/s², acceleration 30 g.

Q: What is the operating temperature range?
A: -55°C to +125°C.

Q: What is the difference between YF6A‑59TJ and YF6A‑59ZK?
A: YF6A‑59TJ is the plug (cable‑attached half) with pin contacts; YF6A‑59ZK is the receptacle (panel‑mount half) with socket contacts and fireproof/explosion‑proof construction.

Q: Do you provide mating connectors?
A: Yes, both plug and receptacle versions are available. Please specify your desired contact mix when ordering.

Contact Us

Ready to integrate a high‑density, fire‑protected separation connector with 59 hybrid contacts and low mating torque into your next‑generation aerospace or defense system? Our technical experts are standing by to discuss your specific application requirements and recommend the optimal YF6A‑59 configuration—from contact mix to separation force and custom testing.

Whether you need standard units for immediate deployment or custom‑engineered solutions for next‑generation systems, we're here to help you achieve your mission objectives.

Reach out to our team today: manager04@mxtdinfo.com

Let us show you how our YF6A‑59 series separation connectors can deliver high‑density hybrid performance with unmatched fire protection and ease of use.