YF6A-42ZJ or TK Separation (Breakaway) Electrical Connector

YF6A-42ZJ/TK Separation (Breakaway) Electrical Connector | Dual Separation with 850°C Flame Resistance & 1553B Data Bus Integration

The YF6A‑42ZJ/TK Separation Connector series represents the ultimate integration of data bus capability, dual-mode redundancy, and extreme environmental protection. Featuring 42 gold‑plated Φ1.0 contacts rated at 5 A, this connector is uniquely configured to support MIL‑STD‑1553B data bus protocols alongside conventional low‑frequency circuits—eliminating the need for separate data connectors in critical aerospace and defense applications. The receptacle is engineered to withstand 850°C flame冲刷, ensuring survival in engine fire zones and post‑crash scenarios. With dual mechanical and electromagnetic separation, hybrid termination (crimp for high‑frequency, solder for low‑frequency), calibrated 28–88 N separation force, and proven resistance to severe vibration and shock, the YF6A‑42 is the preferred choice for launch vehicles, aircraft pylons, and naval systems requiring integrated data bus capability with redundant release and flame protection.

Product Descriptions from the Supplier

The YF6A‑42ZJ/TK Separation (Breakaway) Electrical Connector is an advanced interconnect solution engineered for applications requiring both conventional signal transmission and MIL‑STD‑1553B data bus communication within a single, dual‑mode separation interface with flame protection. Fully compliant with enterprise standard Q/21EJ275, this connector features 42 solder‑terminated (low‑frequency) Φ1.0 contacts rated at 5 A each with a maximum contact resistance of 10 mΩ, plus integrated high‑frequency contacts configured for 1553B data bus protocols.

The defining features of this series include:

• 850°C Flame Resistance: The receptacle is designed to withstand 850°C flame冲刷, ensuring critical system integrity during fire events
• Dual Separation Capability:

1. Mechanical separation via calibrated breakaway force (28–88 N)
2. Electromagnetic separation using an integrated solenoid, activated by a 23–31 V DC pulse (≥200 ms) with separation occurring in ≤0.1 s (maximum energizing time ≤5 s)

• 1553B Data Bus Integration: High-frequency contacts support MIL-STD-1553B protocols alongside conventional signals
• Hybrid Termination: Crimp termination for high‑frequency contacts (controlled impedance); solder termination for low‑frequency contacts (field serviceability)

This dual‑mode redundancy ensures positive release whether commanded electronically or via mechanical force, critical for space launch, weapon systems, and emergency jettison scenarios.

All contacts are terminated via the appropriate method for each signal type. The connector operates from -55 °C to +125 °C and survives severe dynamic conditions: random vibration of 0.3 G²/Hz (20 Grms), sinusoidal vibration of 150 m/s², 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 500 V under humidity and 150 V at low pressure (1 kPa). Control wires for electromagnetic components are rated at 650 V AC rms to shell. Insulation resistance for signal contacts exceeds 1000 MΩ at room temperature, ≥500 MΩ at high temperature, and ≥20 MΩ after humidity testing. Electromagnetic components maintain ≥100 MΩ at room temperature, ≥50 MΩ at high temperature, and ≥10 MΩ after humidity.

Available in two configurations (digital/analog hybrid):

• YF6A‑42TK: Plug (cable‑attached half) with socket contacts
• YF6A‑42ZJ: Receptacle (panel‑mount half) with pin contacts (850°C flame-resistant)

Typical applications include launch vehicle umbilicals with 1553B monitoring, aircraft external store data interfaces, naval combat system connections, and any application requiring integrated data bus capability with redundant separation and flame protection.

Specifications

Applications

• Launch Vehicles: Umbilical disconnects with 1553B data bus monitoring and redundant separation.
• Aircraft: External store separation with smart weapon data interfaces and fire protection.
• Naval Systems: Combat system connections requiring fire-safe, dual-mode disconnects.
• Missile Systems: Canister launch interfaces with integrated data bus and redundant release.
• Spacecraft: Stage separation with telemetry data transmission and backup electronic release.
• Industrial: Hazardous area disconnects requiring flame resistance and dual release modes.

Functionality

• Integrated 1553B Data Bus: High-frequency contacts support MIL-STD-1553B protocols alongside conventional signals.
• Dual Separation Modes: Mechanical (28–88 N) and electromagnetic (≤0.1 s, 23–31 V DC) for maximum reliability.
• 850°C Flame Resistance: Receptacle withstands extreme thermal events.
• Hybrid Termination: Crimp for HF (controlled impedance), solder for LF (field serviceability).
• Controlled Electromagnetic Release: Fast response with limited energizing time to prevent coil damage.
• Environmental Robustness: Withstands extreme temperature, vibration, shock, and acceleration.
• High Contact Density: 42 circuits in a single separation interface.

Key Features

• Data Bus Integration: Eliminates separate 1553B connectors—saves space and weight.
• Dual Redundant Separation: Mechanical and electromagnetic modes ensure release even if one system fails.
• 850°C Flame Protection: Receptacle certified for extreme fire scenarios.
• Hybrid Termination Optimization: Best method for each signal type.
• Aerospace‑Grade Qualification: Tested to rigorous vibration, shock, and acceleration standards.
• Solder & Crimp Options: Field‑serviceable LF contacts; precision HF contacts.
• 500‑Cycle Life: Suitable for ground testing and multiple mission uses.
• Wide Temperature Range: -55 °C to +125 °C suits harsh environments.
• High Insulation Resistance: ≥1000 MΩ at room temperature ensures signal integrity.

Custom Design

The YF6A‑42 platform can be adapted to meet unique mission requirements:

• Custom HF/LF Contact Mix: Adjust the quantity of 1553B data bus contacts vs. standard signal contacts.
• Separation Force Adjustment: Modify mechanical breakaway force for specific release requirements.
• Electromagnetic Parameters: Tailor voltage, current, or response time for different control systems.
• Enhanced Flame 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 hybrid terminations and overmolding.
• Non‑Standard Testing: Additional screening for high‑reliability programs.

Why Choose MXTD​​​​​​​

At MXTD, we specialize in separation connectors that integrate advanced data bus capabilities with redundant release mechanisms and extreme environmental protection. The YF6A‑42 series exemplifies our engineering excellence—combining MIL‑STD‑1553B data bus integration, dual mechanical and electromagnetic separation, 850°C flame resistance, and 42‑contact density in a single, field‑proven package. Manufactured under strict enterprise standard Q/21EJ275, each YF6A‑42 undergoes comprehensive testing including separation force verification, electromagnetic timing validation, flame resistance certification, and contact resistance measurement. 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‑42 unique among separation connectors?
A: It combines MIL‑STD‑1553B data bus integration, dual mechanical and electromagnetic separation, and 850°C flame resistance in a single 42‑contact package—unmatched in capability for critical aerospace applications.

Q: What are the two separation modes?
A: Mechanical separation via calibrated breakaway force (28–88 N) and electromagnetic separation via 23–31 V DC pulse (≤0.1 s response).

Q: What is the flame resistance rating?
A: The receptacle withstands 850°C flame冲刷, ensuring survival in engine fire zones and post‑crash scenarios.

Q: How many contacts are there, and what are their ratings?
A: 42 total Φ1.0 contacts rated at 5 A each (≤10 mΩ), with a configurable mix of low‑frequency and 1553B high‑frequency contacts.

Q: What termination methods are used?
A: Hybrid termination: high‑frequency (1553B) contacts are crimp‑terminated for controlled impedance; low‑frequency contacts are solder‑terminated for field serviceability.

Q: What is the electromagnetic separation voltage and time?
A: 23–31 V DC pulse (≥200 ms), separation in ≤0.1 s, with maximum energizing time ≤5 s.

Q: What vibration and shock levels can it withstand?
A: Random vibration 0.3 G²/Hz (20 Grms), sinusoidal 150 m/s², 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‑42TK and YF6A‑42ZJ?
A: YF6A‑42TK is the plug (cable‑attached half) with socket contacts; YF6A‑42ZJ is the receptacle (panel‑mount half) with pin contacts and 850°C flame resistance.

Q: What is the insulation resistance after humidity testing?
A: Signal contacts ≥20 MΩ; electromagnetic components ≥10 MΩ.

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

Contact Us

Ready to integrate a dual‑mode separation connector with 1553B data bus capability and 850°C flame resistance 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‑42 configuration—from HF/LF contact mix to separation force, electromagnetic parameters, 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‑42 series separation connectors can deliver integrated data bus performance with redundant release and unmatched flame protection.