YF6A-46ZK or TJ Separation (Breakaway) Electrical Connector

YF6A-46ZK/TJ Separation (Breakaway) Electrical Connector | Dual Separation with Fireproof/Dustproof/Corrosion-Resistant Contacts & 1553B Data Bus Integration​​​​​​​

The YF6A‑46ZK/TJ Separation Connector series combines dual‑mode separation (mechanical and electromagnetic) with full environmental protection—fireproof, dustproof, and corrosion‑resistant contacts on both plug and receptacle. Featuring 46 gold‑plated Φ1.0 contacts rated at 5 A (≤10 mΩ), this connector integrates MIL‑STD‑1553B data bus capability alongside conventional low‑frequency circuits, eliminating the need for separate data connectors in complex aerospace and defense systems. With hybrid termination (crimp for high‑frequency, solder for low‑frequency), proven resistance to severe vibration and shock, and the ability to withstand extreme pull accelerations (8 m/s and 1500 m/s²), the YF6A‑46 is the ideal choice for launch vehicles, aircraft pylons, naval combat systems, and any application requiring redundant release, integrated data bus, and all‑around environmental ruggedness.

Product Descriptions from the Supplier

The YF6A‑46ZK/TJ Separation (Breakaway) Electrical Connector is an advanced interconnect solution engineered for applications requiring both MIL‑STD‑1553B data transmission and conventional signal circuits, combined with dual‑mode separation and full environmental protection for both mating halves. Fully compliant with enterprise standard Q/21EJ275, this connector features 46 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:

• Full Environmental Protection: Both plug and receptacle are engineered to be fireproof, dustproof, and corrosion‑resistant—ensuring reliable operation in the harshest environments
• Dual Separation Capability:
  • Mechanical separation via calibrated breakaway force (typical range 28–88 N, exact value available upon request)
  • 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
• Separation Adaptability: Qualified to withstand pull environments with accelerations of 8 m/s and 1500 m/s², ensuring reliable release under dynamic loads
• 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 200 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:

• YF6A‑46TJ: Plug (cable‑attached half) with pin contacts (environmentally protected)
• YF6A‑46ZK: Receptacle (panel‑mount half) with socket contacts (environmentally protected)

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 full environmental protection on both halves.

Specifications

Applications

• Launch Vehicles: Umbilical disconnects with 1553B data bus monitoring, requiring dual‑separation and full environmental protection.
• Aircraft: External store separation with smart weapon data interfaces, where both halves face harsh conditions.
• Naval Systems: Deck-mounted separation connectors exposed to salt spray, fire, and dust, with integrated data bus.
• Missile Systems: Canister launch interfaces with redundant release and 1553B guidance.
• Spacecraft: Stage separation with telemetry data transmission and environmental ruggedness.
• Industrial: High‑reliability disconnects in fire‑prone or corrosive environments.

Functionality

• Full Environmental Protection: Both plug and receptacle are fireproof, dustproof, and corrosion‑resistant—unmatched for exposed installations.
• Dual Separation Modes: Mechanical and electromagnetic (≤0.1 s, 23–31 V DC) for maximum reliability.
• 1553B Data Bus Integration: High-frequency contacts support MIL-STD-1553B protocols alongside conventional signals.
• Hybrid Termination: Crimp for HF (controlled impedance), solder for LF (field serviceability).
• Separation Adaptability: Qualified for pull environments with accelerations of 8 m/s and 1500 m/s².
• Environmental Robustness: Withstands extreme temperature, vibration, shock, and acceleration.
• High Contact Density: 46 circuits in a single separation interface.

Key Features​​​​​​​

• Full Environmental Protection on Both Halves: Plug and receptacle are fireproof, dustproof, and corrosion‑resistant—ideal for exposed applications.
• Dual Redundant Separation: Mechanical and electromagnetic modes ensure release even if one system fails.
• 1553B Data Bus Integration: Eliminates separate data connectors—saves space and weight.
• Separation Adaptability: Tested to withstand pull accelerations of 8 m/s and 1500 m/s².
• Hybrid Termination Optimization: Best method for each signal type.
• Aerospace‑Grade Qualification: Tested to rigorous vibration, shock, and acceleration standards.
• 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‑46 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 Environmental Protection: Higher levels of fire, dust, or corrosion resistance available.
• Special Materials: Select shell finishes for enhanced performance.
• 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 combine advanced data bus integration with dual‑mode redundancy and full environmental protection. The YF6A‑46 series exemplifies our engineering excellence—offering fireproof, dustproof, and corrosion‑resistant contacts on both plug and receptacle, MIL‑STD‑1553B data bus capability, dual mechanical and electromagnetic separation, and 46‑contact density in a single, field‑proven package. Manufactured under strict enterprise standard Q/21EJ275, each YF6A‑46 undergoes comprehensive testing including separation force verification, electromagnetic timing validation, environmental sealing qualification, 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—especially when both halves face extreme conditions and redundant release is critical. 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‑46 unique among separation connectors?
A: It is the only connector offering full environmental protection (fireproof, dustproof, corrosion‑resistant) on both the plug and receptacle, combined with MIL‑STD‑1553B data bus integration and dual mechanical/electromagnetic separation.

Q: What are the two separation modes?
A: Mechanical separation via calibrated breakaway force (exact value available upon request) and electromagnetic separation via 23–31 V DC pulse (≤0.1 s response).

Q: Is the environmental protection only on the receptacle?
A: No, both the plug (YF6A‑46TJ) and receptacle (YF6A‑46ZK) are fireproof, dustproof, and corrosion‑resistant.

Q: What data bus is supported?
A: MIL‑STD‑1553B data bus is supported through integrated high-frequency contacts.

Q: How many contacts are there, and what are their ratings?
A: 46 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; low‑frequency contacts are solder‑terminated.

Q: What is the separation adaptability?
A: The connector is qualified to withstand pull environments with accelerations of 8 m/s and 1500 m/s².

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‑46TJ and YF6A‑46ZK?
A: YF6A‑46TJ is the plug (cable‑attached half) with pin contacts; YF6A‑46ZK is the receptacle (panel‑mount half) with socket contacts. Both have full environmental protection.

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 full environmental protection on both halves and 1553B data bus capability 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‑46 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‑46 series separation connectors can deliver unmatched environmental protection and integrated data bus performance for your most demanding missions.