YF31A-15ZK or TJ Separation (Breakaway) Electrical Connector

YFS8-15ZJ/TK Separation (Breakaway) Electrical Connector | 15‑Contact, Water‑Resistant up to 15m

The YF31A‑15ZK/TJ Separation Connector series is engineered for applications requiring a simple yet highly reliable mechanical breakaway interface with the added convenience of dual pull loops on both plug and receptacle. This feature allows manual separation from either side—ideal for umbilical disconnects, emergency release systems, and ground handling where quick access is needed. With two contact sizes (Φ1.0 for 5 A signals and Φ1.5 for 10 A power) and multiple separation force options, the YF31A family offers flexibility for a wide range of aerospace, naval, and industrial separation events. Solder termination ensures dependable field connections, and the rugged construction withstands severe vibration, shock, and acceleration. When your system demands a breakaway connector that can be released from either end, the YF31A series delivers.

Product Descriptions from the Supplier

The YF31A‑15ZK/TJ Separation (Breakaway) Electrical Connector is a robust interconnect solution designed for applications requiring a mechanical breakaway interface with the unique feature of pull loops on both plug and receptacle. Fully compliant with enterprise standard Q/21EJ1338, this connector family provides a reliable means of disconnecting electrical circuits under commanded or emergency conditions, while the dual lanyards allow separation from either side—a critical advantage in confined spaces or when access is limited.

The contact complement consists of two sizes: Φ1.0 contacts rated at 5 A with a maximum contact resistance of 5 mΩ, and Φ1.5 contacts rated at 10 A with a maximum contact resistance of 3 mΩ. All contacts are terminated via solder cups, a time‑tested method that ensures reliable, field‑serviceable connections without specialized tooling.

Mechanical separation force is calibrated to either 100–200 N (standard model YF31A‑15TJ) or 80–120 N (variant YF31A‑15TJ‑01), allowing designers to select the appropriate release threshold for their application. An additional variant, YF31A‑15TJM, maintains the same electrical and mechanical performance but features a different rear accessory configuration to accommodate specific cable clamping or shielding requirements.

The connector is built to survive harsh environments: operating temperature from -55 °C to +125 °C, vibration (10–50 Hz at 2 mm amplitude, 50–2000 Hz at 98 m/s²), shock of 686 m/s², and constant acceleration of 833 m/s². With a mechanical life of 500 mating cycles, the YF31A series is suitable for repeated ground testing and operational reuse.

Typical applications include umbilical disconnects on launch vehicles, emergency release mechanisms on aircraft, naval cable breakaway interfaces, and any system where manual separation from either side may be required.

Specifications

Applications

• Aerospace Launch Vehicles: Umbilical disconnects, stage separation pull‑loops.
• Aircraft: Emergency release mechanisms, external store jettison.
• Naval Systems: Torpedo launch, buoy deployment, underwater cable breakaway.
• Ground Support Equipment: Quick‑disconnect cables for fueling, arming, or testing.
• Industrial Safety: Emergency shutdown pull‑away connections.
• Unmanned Vehicles: UAV/UUV tether release systems.

Functionality

• Dual Lanyard Design: Pull loops on both plug and receptacle allow separation from either end—ideal for confined or hard‑to‑reach installations.
• Calibrated Separation Force: Available in two ranges (100–200 N or 80–120 N) to match specific release requirements.
• Solder Termination: Reliable, field‑serviceable connections suitable for prototyping and maintenance.
• Dual Contact Sizes: Φ1.0 (5 A) for signals and Φ1.5 (10 A) for low‑power circuits.
• Environmental Robustness: Withstands extreme temperature, vibration, shock, and acceleration.
• Variant Flexibility: Different rear accessory options (‑TJM) for specialized cable clamping or shielding needs.

Key Features

• Unique Dual‑Lanyard Operation: Manual separation can be initiated from either connector half.
• Two Separation Force Options: Choose standard (100–200 N) or reduced (80–120 N) for precise system integration.
• Hybrid Contact Set: 5 A and 10 A contacts in a single shell for mixed signal/power interfaces.
• 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 both space and airborne environments.
• Customizable Rear Accessories: ‑TJM variant accommodates different cable clamping requirements.

Custom Design

The YF31A platform can be adapted to meet unique mission requirements:

• Custom Contact Arrangements: Adjust the mix of Φ1.0 and Φ1.5 contacts, or add other sizes upon request.
• Separation Force Adjustment: Tailor the breakaway force to specific application needs (other ranges available).
• Special Materials: Select shell finishes for enhanced corrosion resistance or specific conductivity.
• Rear Accessory Customization: Develop unique cable clamps, shrink boot adapters, or shielding terminations.
• Cable Assembly Integration: Complete harness solutions with overmolding and strain relief.
• Non‑Standard Testing: Additional screening or qualification testing for high‑reliability programs.

Why Choose MXTD

At MXTD, we specialize in mission‑critical separation connectors that combine mechanical simplicity with rugged reliability. The YF31A‑15 series exemplifies our engineering philosophy—offering the unique advantage of dual‑lanyard operation while maintaining precise, calibrated separation forces. Manufactured under strict enterprise standard Q/21EJ1338, each YF31A undergoes comprehensive testing including separation force verification, contact resistance measurement, and dynamic stress screening. 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 is unique about the YF31A series compared to other separation connectors?
A: The YF31A features pull loops on both the plug and receptacle, allowing manual separation from either end. This is particularly useful in applications where access to one side is restricted.

Q: What separation force options are available?
A: The standard model (YF31A‑15TJ) has a separation force of 100–200 N. The ‑01 variant offers a reduced force of 80–120 N. Other ranges may be available on request.

Q: How many contacts are there and what are their ratings?
A: The YF31A‑15 series includes 15 contacts total, comprising Φ1.0 contacts (5 A, ≤5 mΩ) and Φ1.5 contacts (10 A, ≤3 mΩ). The exact mix can be customized.

Q: What termination method does this series use?
A: Termination is via solder cups, providing reliable, field‑serviceable connections for all contact types.

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

Q: Can the connector be reused after separation?
A: Yes, the mechanical life is rated for 500 mating/separation cycles, making it suitable for multiple tests and operational uses.

Q: What vibration and shock levels can it withstand?
A: It withstands low‑frequency vibration (10–50 Hz, 2 mm amplitude), high‑frequency vibration (50–2000 Hz, 98 m/s²), shock of 686 m/s², and constant acceleration of 833 m/s².

Q: What is the difference between YF31A‑15TJ and YF31A‑15TJM?
A: The ‑TJM variant has a different rear accessory configuration (e.g., cable clamp style) but maintains the same electrical and mechanical performance as the standard TJ model.

Q: What is the insulation resistance after humidity testing?
A: After humidity testing, insulation resistance remains ≥20 MΩ, ensuring reliable signal transmission.

Q: Do you provide mating connectors?
A: Yes, both plug and receptacle versions (YF31A‑15ZK/TJ) are available. Please specify your configuration when ordering.

Contact Us

Ready to integrate a separation connector that can be released from either side with calibrated precision? Our technical experts are standing by to discuss your specific application requirements and recommend the optimal YF31A configuration—from separation force to contact arrangement and rear accessory options.

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 YF31A series dual‑lanyard separation connectors can deliver reliable, manual breakaway performance in the most critical moments of your mission.