Military Metal Relay JQX-5M RJ4.523.108

Military Metal Relay JQX-5M RJ4.523.108 – High-Reliability Sealed Relay for Aviation & Aerospace

The Military Metal Relay JQX-5M RJ4.523.108 is a hermetically sealed, metal-enclosure relay designed for mission-critical aviation, defense, and aerospace applications. With ultra-low coil power consumption (0.3~0.43W), fast switching (≤4ms), and a rugged metal housing that provides superior electromagnetic interference (EMI) shielding and environmental protection, this relay ensures uninterrupted performance in extreme temperatures, humidity, and altitude conditions. As a core member of our Metal Sealing Relay family, the JQX-5M RJ4.523.108 is also available in Latching Relay and Polarized Relay variants. It directly replaces legacy aviation relays in flight control computers, power distribution units, and weapons systems. For engineers specifying Military Aviation Connector or Aviation Microswitch solutions, this relay offers a compact, lightweight (<3g) alternative with proven MIL-grade reliability.

Technical Specifications

The JQX-5M RJ4.523.108 is manufactured to meet stringent military and aviation performance requirements. Key parameters include:

• Coil Power Consumption: 0.3 ~ 0.43 W (at 25°C, nominal voltage)
• Contact Load & Electrical Life: Resistive load 1A @ 28V d.c., 1×10⁵ operations; Low-level (10~50)μA, (10~50)mV, 1×10⁵ operations
• Contact Resistance: Initial ≤50 mΩ; after life test ≤200 mΩ
• Operate / Release Time: ≤4 ms (operate), ≤4 ms (release); high-speed option ≤3 ms action time
• Incentive Pulse Width: (10~50) ms
• Dielectric Withstanding Voltage: Normal atmosphere: 500 Vr.m.s. @ 50 Hz; Reduced pressure: 250 Vr.m.s. @ 50 Hz
• Insulation Resistance: Normal atmosphere >500 MΩ; after high-level life test >50 MΩ
• Weight: <3 g (ultra-lightweight for airborne equipment)
• Sealing (Leakage Rate): ≤1×10⁻³ Pa·cm³/s (helium mass spectrometer tested)
• Wire Coil Specifications: 28V d.c. standard; other voltages (5V, 12V, 24V, 48V d.c.) available on request
• Operating Temperature Range: -65°C to +125°C
• Vibration Resistance: 10g to 2000 Hz (MIL-STD-202 Method 204)
• Shock Resistance: 50g, 11ms half-sine (MIL-STD-202 Method 213)
• Enclosure Material: Corrosion-resistant metal (nickel-plated steel or stainless steel)

All electrical parameters are 100% tested before shipment. The relay’s low contact resistance and consistent timing make it ideal for both power switching and low-level signal routing in PCB Board Relay and Industrial Power Relay applications.

Product Images & Visuals

High-resolution images show the all-metal enclosure, gold-plated pins, and laser-engraved part number. Additional technical drawings (outline dimensions, pin assignment, and mounting recommendations) are available in PDF and STEP format.

Key Features & Advantages

Compared to commercial plastic-sealed relays, the JQX-5M RJ4.523.108 delivers superior performance in harsh aviation environments:

• Hermetic Metal Sealing: Leak rate ≤1×10⁻³ Pa·cm³/s prevents ingress of moisture, fuel vapors, and salt fog – essential for unpressurized aircraft bays. This sealing technology is also used in our Military Aviation Band Switch and Aviation Oil Sealed Valve lines.
• Ultra-Low Coil Power (0.3W typical): Reduces heat generation in densely packed avionics chassis and allows direct drive from 28V aircraft bus without external drivers.
• Fast & Consistent Switching (≤4ms): Enables precise timing in flight control and arming sequences. Optional 3ms version for high-speed applications.
• Gold-Plated Bifurcated Contacts: Ensure low and stable contact resistance (<50mΩ) even after 100,000 operations, supporting both power (1A) and low-level (10μA) loads.
• High Vibration & Shock Tolerance: Tested to 10g vibration and 50g shock, exceeding DO-160G requirements – a must for Aviation Button Switch and Aviation Swing arm Switch adjacent panels.
• Wide Temperature Operation (-65°C to +125°C): Performs reliably from arctic to desert environments without derating.
• EMI Shielding: The metal enclosure provides inherent electromagnetic interference protection, reducing the need for external filtering.

How to use the JQX-5M RJ4.523.108 in a typical aviation circuit:
Step 1: Verify coil voltage (standard 27V~28V d.c.) and pinout from the datasheet.
Step 2: Solder or use a relay socket (available separately) – do not exceed 260°C for 5 seconds.
Step 3: Connect the load (max 1A, 28V d.c. resistive) to the NO/NC contacts as required.
Step 4: Apply coil voltage – the relay will operate within 4ms with positive click feedback.
Step 5: For latching versions, a pulse of 10~50ms is sufficient to set or reset the state.

By choosing the JQX-5M RJ4.523.108, system integrators reduce maintenance frequency (sealed contacts eliminate arcing contamination) and improve overall mission availability. The relay’s small footprint (<3g) and metal can design also simplify thermal management – a significant advantage when used alongside Aviation Hours Timer and Aviation Ammeter in crowded cockpit panels.

Application Scenarios

The JQX-5M RJ4.523.108 military metal relay is deployed in a wide range of fixed-wing, rotary-wing, and ground support systems:

• Flight Control Computers (FCC): Discrete I/O signal routing and actuator command switching.
• Power Distribution Units (PDU): Remote switching of 28V loads to avionics, lighting, and sensors.
• Weapon Arming & Control Systems: Safety-critical arming relays requiring sealed contacts and high shock resistance.
• Engine Control & Monitoring: Switching of thermocouple inputs and Aviation Temperature Sensor signals.
• Ground Support Equipment (GSE): Test stands and battery chargers where Aviation Pressure Release Valve and Aviation Oxygen Valve are also used.
• Helicopter Avionics Bays: Vibration-resistant replacement for commercial relays in rotorcraft.

For procurement managers, the JQX-5M RJ4.523.108 offers clear value: lower total cost of ownership due to extended life (100k operations) and reduced downtime. Its drop-in compatibility with legacy relay sockets (e.g., 4-pin, 6-pin patterns) eliminates redesign costs. Additionally, the relay’s hermetic sealing prevents contact oxidation, ensuring consistent resistance over years of service – a critical benefit for Military Pressure Sensor and Hydraulic Circuit Breaker monitoring circuits.

Certifications & Compliance

The JQX-5M RJ4.523.108 is manufactured under strict quality controls and meets the following standards:

• AS9100D (Aerospace Quality Management System)
• MIL-PRF-6106 (General specification for relays, hermetically sealed, 1A to 25A)
• MIL-STD-202 (Environmental test methods: vibration, shock, salt spray, altitude)
• RTCA DO-160G (Sections 4, 5, 8, 11 – temperature, altitude, vibration, fluid susceptibility)
• RoHS 3 (2015/863/EU) and REACH compliant (metal parts exempt per aerospace directive)

Each relay is serialized and accompanied by a Certificate of Conformance (CoC) including coil resistance, dielectric strength, contact resistance, and leak test results. Third-party qualification data is available upon request.

Customization Options

To meet specific platform or application needs, the JQX-5M RJ4.523.108 can be customized in the following ways:

• Coil Voltage: 5V, 12V, 24V, 28V, 48V d.c. or 115V 400Hz AC (upon request).
• Contact Configuration: SPDT (standard), DPDT, or 4PDT versions available – suitable for Latching Relay or non-latching operation.
• Terminal Style: Solder hook (standard), PCB pin, or quick-connect.
• Mounting Bracket: Adding a metal flange for chassis mounting (instead of PCB mounting).
• Contact Material: Gold-plated silver (standard), or gold-plated palladium for ultra-low level switching (<10mV).
• Sealing Upgrade: Leak rate ≤1×10⁻⁵ Pa·cm³/s for critical space applications.

Our engineering team provides full technical support, including 2D outline drawings, 3D CAD models (STEP/IGES), and application notes. For large-volume programs, we can co-design a variant that integrates seamlessly with your Military Electronic Horn or Aviation Cold Air Solenoid Valve control systems.

Production Process & Quality Assurance

Every JQX-5M RJ4.523.108 military metal relay undergoes a rigorous 10-step manufacturing and testing protocol:

1. Precision stamping of contact springs and terminals from beryllium copper or silver alloy.
2. Gold plating of contact surfaces (thickness ≥0.5μm) in a controlled bath.
3. Coil winding with high-temperature magnet wire – 100% tested for resistance and turn-to-turn insulation.
4. Contact & armature assembly in a Class 7 cleanroom to prevent particle contamination.
5. Sealing of metal enclosure using resistance welding under inert gas atmosphere.
6. Helium leak detection (mass spectrometer) – each unit must show ≤1×10⁻³ Pa·cm³/s.
7. 100% electrical testing (operate/release voltage, contact resistance, insulation resistance, dielectric strength).
8. Burn-in cycling – 50 operations at rated load for every relay.
9. Vibration & shock sample test per MIL-STD-202 (10 units per batch).
10. Final visual inspection under 20x magnification and laser marking of part number and date code.

Our factory is IATF 16949 certified and applies statistical process control (SPC) to all critical dimensions. This same level of quality extends to our PCB Signal Relay, Solid State Relay, and Automotive Relay product lines, ensuring the JQX-5M RJ4.523.108 meets the highest aerospace reliability standards.