Military Metal Relay JRC-10M RG4.553.204

Military Aviation Relay JRC-10M Series (RG4.553.202/203/204) | P3K94B Replacement

Product Overview

The JRC-10M series is a comprehensive family of Military Metal Sealing Relays, available in multiple standard voltage configurations: RG4.553.202 (12VDC), RG4.553.203 (18VDC), and RG4.553.204 (27VDC). Designed as direct replacements for legacy P3K94B relays, these Aviation DC Relays provide a versatile and reliable switching solution for a wide range of military and aerospace control systems, particularly in drone and aircraft engine applications.

Technical Specifications

• Model Series: JRC-10M
• Standard Part Numbers:
  • RG4.553.202 - 12VDC Coil
  • RG4.553.203 - 18VDC Coil
  • RG4.553.204 - 27VDC Coil
• 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
• Insulation Resistance: >500MΩ
• Weight: <3g

Key Features & Advantages

• Multi-Voltage Family: A single relay family covers three critical DC voltages (12V, 18V, 27V), simplifying design and procurement across different platforms and legacy systems replacing P3K94B.
• Standardized Military Part Numbers: RG4.553.xxx series numbers ensure easy identification and integration into military logistics and documentation systems.
• Hermetically Sealed Metal Enclosure: Provides maximum protection against harsh environmental conditions, offering far greater durability than standard PCB Signal Relays.
• High-Density PCB Board Relay Compatibility: Compact design is optimized for space-constrained avionics and UAV flight control boards.
• Proven Military Electromagnetic Relay Reliability: Engineered for a minimum 100,000-operation lifespan in demanding vibration and temperature environments.
• Metal Sealed Military Aviation Relay JRC-10M 27V  RG4.553.204 27V
• JRC-10M RG4.553.204 27V
• JRC-10M RG4.553.202 12V
• JRC-10M RG4.553.203 18V
• JRC-10M RJ4.553.204 27V
• Metal Relay Designed for Aviation and Military Applications
• Aviation Relay with Military Grade Metal Design
• Military Aviation Relay for Drone,Aircraft Engine PCB Board 
• High quality Aviation relay for Engine,Train,Plane maintain

Selection & Installation Guide

1. Determine System Voltage: Identify the operating coil voltage of your existing P3K94B relay or system requirement (12V, 18V, or 27V).
2. Select Correct Part Number: Choose the corresponding JRC-10M variant: .202 (12V), .203 (18V), or .204 (27V).
3. System Preparation: Safely de-energize the equipment before replacement.
4. Replacement: Carefully remove the old relay and install the JRC-10M, ensuring identical pin orientation on the PCB.
5. Verification: Restore power and conduct functional tests to validate performance.

Application Scenarios

This versatile relay series delivers critical value by offering a unified, high-reliability solution for diverse voltage requirements. Primary applications include: Legacy aircraft and drone avionics upgrades (replacing P3K94B), Military vehicle power distribution and control modules, Engine monitoring and control units, Ground support equipment, and other high-reliability systems where a robust, hermetically sealed DPDT 8Pin 27V Relay equivalent is needed. Its performance meets the demands where standard Industrial Power Relays are inadequate.

Quality & Compliance

Manufactured in our ISO 9001 certified facility. Each JRC-10M variant is produced under stringent quality controls, including 100% electrical testing and batch reliability validation, ensuring consistency with the high standards of our Military Metal Relay portfolio.

Customization Options

We offer OEM/ODM services for specialized requirements. Beyond the standard voltage offerings, custom coil voltages, lead forms, marking, or additional qualification testing can be arranged for volume orders, similar to services for our Polarized Relay JH-2S.

FAQ

Q: What is the difference between the RG4.553.202, .203, and .204 versions?
A: The difference is solely the coil voltage: .202 = 12VDC, .203 = 18VDC, .204 = 27VDC. All mechanical dimensions, contact ratings, and performance specifications are identical.

Q: Is the JRC-10M a direct drop-in replacement for the P3K94B?
A: Yes, the JRC-10M series is designed as a form, fit, and function replacement for the P3K94B relay series across its common voltage variants.

Q: Can I use the 27V (.204) version in a 24V system?
A: For optimal and reliable performance, it is strongly recommended to use the relay version that matches your system's nominal coil voltage. The 27V relay is designed for 27V nominal operation.

Q: Are these parts suitable for new designs, or only for replacement?
A: Absolutely suitable for new designs. Their standardized footprint, proven reliability, and military-grade construction make them an excellent choice for new high-reliability PCB Board Relay applications.