YF1-37ZK or TJ Separation (Breakaway) Electrical Connector

YF1-37ZK/TJ Separation (Breakaway) Electrical Connector | Dual Mechanical & Electromagnetic Separation with Fireproof/Dustproof Receptacle

The YF1‑37ZK/TJ Separation Connector series offers the ultimate flexibility in breakaway interface design, featuring both mechanical and electromagnetic separation modes in a single, rugged package. With 37 gold‑plated Φ1.0 contacts rated at 5 A, this connector handles complex signal and low‑power requirements while providing dual redundancy in release mechanisms. Two specialized receptacle variants are available: the YF1‑37ZK with 80°C flame protection for fire‑prone zones, and the YF1S‑37ZK with rainproof/short‑circuit‑proof mating face for exposed installations. Solder termination, rigorous vibration/shock qualification, and calibrated 28–88 N mechanical separation force make the YF1‑37 the preferred choice for launch vehicles, aircraft pylons, and naval systems where both manual and commanded release are required.

Product Descriptions from the Supplier

The YF1‑37ZK/TJ Separation (Breakaway) Electrical Connector is a sophisticated interconnect solution engineered for applications requiring both mechanical and commanded (electromagnetic) separation within a single interface. Fully compliant with enterprise standard Q/21EJ275, this connector features 37 solder‑terminated Φ1.0 contacts rated at 5 A each with a maximum contact resistance of 10 mΩ, providing ample capacity for signal and low‑power circuits.

A defining feature is the dual separation capability:

• Mechanical separation via calibrated breakaway force (28–88 N)
• 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)

This dual‑mode redundancy ensures positive release whether commanded electronically or via mechanical force, critical for mission‑critical systems.

The connector offers two specialized receptacle variants:

• YF1‑37ZK: Features 80°C flame protection (withstands flame冲刷 for specified duration) and maintains contact resistance ≤10 mΩ when mated with YF1‑37TJ plug
• YF1S‑37ZK: Features rainproof and short‑circuit‑proof mating face—contacts remain insulated during rain exposure; maintains contact resistance ≤15 mΩ when mated with YF1‑37TJ plug

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: 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:

• YF1‑37TJ: Plug (cable‑attached half) with pin contacts
• YF1‑37ZK / YF1S‑37ZK: Receptacles (panel‑mount half) with socket contacts (standard flame‑protected or rainproof versions)

Typical applications include launch vehicle umbilicals, aircraft external store separation, naval deck interfaces, and any system requiring dual‑mode separation with enhanced environmental protection.

Specifications

Applications

• Launch Vehicles: Umbilical disconnects with dual‑mode separation redundancy.
• Aircraft: External store separation, wing pylon interfaces requiring flame protection.
• Naval Systems: Deck-mounted separation connectors exposed to rain and spray.
• Missile Systems: Canister launch interfaces with commanded release.
• Spacecraft: Stage separation with both mechanical and electronic backup.
• Industrial: Emergency disconnect systems with redundant release mechanisms.

Functionality

• Dual Separation Modes: Mechanical (28–88 N) and electromagnetic (≤0.1 s, 23–31 V DC) for maximum reliability.
• Specialized Receptacle Protection: Choose flame‑resistant (YF1‑37ZK) or rainproof/short‑proof (YF1S‑37ZK) variants.
• Solder Termination: Reliable, field‑serviceable connections for all 37 contacts.
• 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: 37 circuits in a single separation interface.

Key Features

• Dual Redundant Separation: Mechanical and electromagnetic modes ensure release even if one system fails.
• Specialized Environmental Protection: Flame‑resistant (80°C) or rainproof/short‑proof receptacle options.
• 37 High‑Reliability Contacts: Gold‑plated Φ1.0 contacts with ≤10/15 mΩ resistance.
• Fast Electromagnetic Response: ≤0.1 s separation time for time‑critical events.
• 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 YF1‑37 platform can be adapted to meet unique mission requirements:

• Custom Contact Mix: Adjust contact size or quantity (other sizes available on request).
• 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 flame resistance or deeper waterproofing available.
• 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 offer unparalleled redundancy and environmental adaptability. The YF1‑37 series exemplifies our engineering excellence—combining mechanical and electromagnetic separation, specialized receptacle protection (flame or rain), and 37‑contact density in a single, field‑proven package. Manufactured under strict enterprise standard Q/21EJ275, each YF1‑37 undergoes comprehensive testing including separation force verification, electromagnetic timing validation, and environmental sealing 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 YF1‑37 unique among separation connectors?
A: It offers dual separation modes (mechanical + electromagnetic) and specialized receptacle variants—flame‑resistant (80°C) or rainproof/short‑circuit‑proof—in a single 37‑contact package.

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 difference between YF1‑37ZK and YF1S‑37ZK receptacles?
A: YF1‑37ZK provides 80°C flame protection; YF1S‑37ZK provides a rainproof mating face that prevents shorting during rain exposure. Both are compatible with the YF1‑37TJ plug.

Q: What is the contact resistance when mated?
A: ≤10 mΩ for YF1‑37ZK with plug; ≤15 mΩ for YF1S‑37ZK with plug.

Q: How many contacts are there, and what are their ratings?
A: 37 Φ1.0 contacts, each rated at 5 A with gold plating.

Q: What termination method does this series use?
A: Termination is via solder cups for all contacts.

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 insulation resistance for electromagnetic components?
A: ≥100 MΩ at room temperature, ≥50 MΩ at high temperature, ≥10 MΩ after humidity.

Q: Do you provide mating connectors?
A: Yes, plug (YF1‑37TJ) and both receptacle variants are available. Please specify your configuration when ordering.

Contact Us

Ready to integrate a dual‑mode separation connector with specialized environmental protection into your mission‑critical system? Our technical experts are standing by to discuss your specific application requirements and recommend the optimal YF1‑37 configuration—from receptacle type to separation force and electromagnetic parameters.

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 YF1‑37 series separation connectors can deliver redundant, environmentally protected performance in even the most challenging aerospace and naval applications.