Military Aviation Metal Relay JMW-271MA TO-5

Military Metal Relay JMW-271MA TO-5 | Dual Replacement for Teledyne 422D & Deutsch TLS

Product Overview

The JMW-271MA is a versatile, high-reliability Military Metal Sealing Relay housed in the industry-standard TO-5 metal can. Engineered as a direct, drop-in replacement for both the Teledyne 422D and Deutsch TLS series relays, this dual-compatibility Aviation DC Relay simplifies inventory and ensures continuity for critical aerospace and defense systems requiring a robust DPDT switching solution.

Technical Specifications

• Model: JMW-271MA (TO-5 Metal Can, DPDT)
• Coil Voltage: 12VDC & 27VDC versions available
• Contact Configuration: DPDT (2 Form C)
• Contact Rating: 1A @ 28VDC
• Coil Power: 0.3W - 0.43W
• Electrical Life: ≥100,000 operations
• Switching Time: ≤4ms Operate & Release
• Package: Standard TO-5 Hermetic Seal
• Weight: <3g

Key Features & Advantages

• Dual-Source Replacement: Uniquely compatible with both Teledyne 422D and Deutsch TLS series, reducing procurement complexity and mitigating supply chain risk.
• Proven TO-5 Package: Hermetic metal enclosure provides superior environmental protection, EMI shielding, and mechanical durability, a benchmark for Military Electromagnetic Relays.
• Flexible Coil Voltage: Available in 12VDC and 27VDC versions to match various system requirements, offering more flexibility than many single-voltage PCB Signal Relays.
• High-Density Compatible: Standard TO-5 footprint is ideal for space-constrained PCB Board Relay applications in drones, avionics, and compact military electronics.
• Long-Term Reliability: Engineered for 100,000+ operations under rated load, ensuring extended service life and reduced total cost of ownership.

Installation Guide

1. Identify Target Relay: Determine if your system uses a Teledyne 422D or Deutsch TLS relay and note the coil voltage (12V or 27V).
2. Select Correct Version: Choose the JMW-271MA with the matching coil voltage (12V or 27V).
3. Prepare for Installation: Power down equipment and follow ESD-safe handling procedures.
4. Precise Mounting: Align the TO-5 can pins with the existing PCB footprint. Ensure proper orientation (note pin 1 marking).
5. Secure Connection: Solder using appropriate techniques to ensure reliable electrical and mechanical bonds without overheating the seal.
6. Validate Operation: Power up and test the relay's switching function within the circuit.

Application Scenarios

This relay is designed for the most demanding switching tasks. It delivers exceptional value by providing a single, reliable part number for maintaining two different legacy systems. Ideal applications include: Drone flight control and navigation systems, Aircraft engine monitoring and control units (PCB Board Relay applications), Military communications and radar equipment, Ground vehicle electronic systems, and industrial controls requiring a hermetically sealed DPDT 8Pin 27V Relay equivalent. Its robustness makes it suitable where standard Industrial Power Relays may not meet environmental specs.

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Quality Assurance

Manufactured in our ISO 9001 certified facility under a rigorous quality management system. Each JMW-271MA undergoes 100% electrical testing, hermeticity verification, and batch-level environmental stress screening to ensure it meets the high-reliability standards expected in military and Aviation Applications, consistent with our entire Military Metal Relay line.

Customization Services

We offer comprehensive OEM/ODM support. While the JMW-271MA is a standard replacement, custom coil voltages, lead configurations, screening levels, or marking can be developed for volume projects, similar to the tailored solutions we provide for our Polarized Relay JH-2S.

FAQ

Q: Does one JMW-271MA model fit both Teledyne 422D and Deutsch TLS footprints?
A: Yes, it is designed with a standard TO-5 pinout that is compatible with the PCB layouts of both the Teledyne 422D and Deutsch TLS series.

Q: What is the main advantage of the TO-5 metal can?
A: It provides excellent hermetic sealing against moisture and contaminants, superior heat dissipation, and effective shielding against electromagnetic interference, crucial for reliable operation in harsh environments.

Q: Can I use the 27V version in a 12V system (or vice versa)?
A: No. You must select the coil voltage (12V or 27V) that matches your system's operating voltage for proper and reliable operation.

Q: Is this relay suitable for high-altitude applications?
A: Yes, the hermetic TO-5 seal makes it suitable for applications with reduced atmospheric pressure, a key feature of a true Aviation Latching Relay alternative in its category.