Military Metal Electromagnetic Relay JRC-071M

Product Overview

The JRC-071M is an advanced Military Electromagnetic Relay engineered as a direct replacement for legacy CII SR series components in extreme aerospace applications. This Aviation DC Relay features exceptional ultra-low pressure sealing rated at 0.013kPa (13Pa) and withstands acceleration forces up to 75g. With its 4DPDT contact configuration, this Military Metal Relay provides versatile switching capabilities for complex control systems in drones, aircraft engines, and other critical PCB Board Relay applications. Manufactured by YM with 18+ years of precision engineering expertise, this relay sets new standards for reliability in high-altitude and space environments.

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Technical Specifications

• Contact Configuration: 4DPDT (4 Form D)
• Coil Voltage: 27VDC Standard (custom voltages available)
• Contact Rating: 1A @ 28VDC Resistive Load
• Coil Power Consumption: 0.3-0.43W
• Low Level Contact Capacity: (10-50)μA, (10-50)mV, 1×10⁶ operations
• Contact Resistance: Initial ≤50mΩ; After life test ≤200mΩ
• Operate/Release Time: ≤4ms each (≤3ms typical)
• Dielectric Strength: 500Vr.m.s. @ normal pressure; 250Vr.m.s. @ low pressure
• Insulation Resistance: >500MΩ normal; >50MΩ post high-level life test
• Weight: <3g
• Sealing Performance: 0.013kPa operating pressure; Leakage rate ≤10⁻³ Pa·cm³/s
• Vibration/Shock Resistance: 75g acceleration rating
• Operating Temperature: -65°C to +125°C
• Replaces: CII SR series relays (direct form-fit-function replacement)

Key Features & Advantages

1. Ultra-Low Pressure Sealing: Exceptional 0.013kPa (13Pa) rating for space and high-altitude applications where standard relays fail.
2. 4DPDT Contact Configuration: Versatile 4-pole double-throw design allows complex circuit control in compact form factor.
3. Military-Grade Construction: Full metal enclosure with SUS304/316 stainless steel withstands extreme environmental stress.
4. Direct Legacy Replacement: Pin-for-pin compatible with CII SR series, eliminating redesign costs and simplifying upgrades.
5. Enhanced Reliability: 1 million operations at rated load with stable performance throughout service life.
6. Optimized for PCB Integration: Designed as a high-performance PCB Signal Relay with excellent solderability and thermal characteristics.

Application Scenarios

This specialized Military Metal Sealing Relay is engineered for the most demanding aerospace applications:

• Satellite Systems: Power distribution, antenna switching, and payload control in vacuum environments
• High-Altitude Aircraft: Avionics systems, environmental controls, and communication equipment above 50,000 feet
• Military Drones/UAVs: Flight control systems, sensor switching, and payload management requiring multiple circuit control
• Space Exploration Equipment: Scientific instruments, rover systems, and habitat controls requiring ultra-low pressure operation
• Aircraft Engine Controls: Fuel management, ignition systems, and auxiliary power unit controls
• Legacy System Modernization: Direct replacement in existing CII SR installations without PCB modification
• Military Metal Electromagnetic  Relay JRC-071M
• Military Aviation Metal DC Relay JRC-071M  0.013kPa Replace of  CII Relay SR Series
• Military Electromagnetic Relay JRC-071M 0.013kPa for Aviation Application acceleration Speed 75g
• JRC-071MMilitary Aviation Relay for Drone,Aircraft Engine PCB Board 4DPDT
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• 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

Installation & Integration Guide

1. System Compatibility Check: Verify existing system uses CII SR series 4DPDT configuration.
2. PCB Inspection: Examine pad layout and confirm compatibility with JRC-071M footprint.
3. Component Removal: Carefully desolder existing SR series relay using temperature-controlled equipment.
4. Surface Preparation: Clean PCB pads thoroughly to ensure optimal solder joint integrity.
5. Precision Placement: Align JRC-071M with correct pin orientation (note polarity indicators).
6. Soldering Process: Use lead-free solder at 320-350°C with appropriate thermal management.
7. Contact Verification: Test all 4DPDT contacts for proper switching and isolation.
8. Functional Testing: Perform full operational test at nominal and extreme temperature conditions.

Procurement Value Proposition

• Eliminate Requalification Costs: Direct replacement capability avoids expensive system requalification.
• Secure Supply Chain: Reliable manufacturing from SGS-audited factory reduces dependency on obsolete components.
• Extended Service Life: Superior materials and construction extend MTBF, reducing total lifecycle costs.
• Technical Partnership: Access to engineering expertise for complex integration challenges.
• Inventory Consolidation: Replace multiple obsolete SR series variants with one superior, available component.

Certifications & Compliance

• CE and UL certified components and materials
• Compliant with MIL-PRF-6106G Military Relay specifications
• SGS-audited manufacturing processes and quality systems
• RoHS compliant materials and production methods
• ISO 9001:2015 certified quality management system
• Outgassing tested per ECSS-Q-ST-70-02C for space applications

Customization Options

While optimized as a direct SR series replacement, YM offers extensive customization capabilities:

• Alternative coil voltages (5V, 12V, 24V, 48VDC) for specific system requirements
• Modified contact arrangements or switching configurations
• Enhanced sealing levels for specific vacuum/pressure requirements
• Specialized testing and screening (thermal vacuum, outgassing, extended burn-in)
• Custom pin configurations or termination styles
• Private labeling and application-specific documentation packages

Our manufacturing expertise spans Automotive Relay, Industrial Power Relay, and Solid State Relay technologies, with proven ODM experience serving global aerospace primes.

Quality Assurance Process

Every JRC-071M undergoes rigorous 8-stage quality verification:

1. Incoming material certification with full traceability documentation
2. Precision machining with automated SPC monitoring and control
3. Contact assembly with precious metal alloys for optimal performance
4. Ultra-high vacuum sealing with 100% leak rate verification
5. Comprehensive electrical testing across specified temperature range
6. Vibration and shock testing per MIL-STD-202 methods
7. Thermal vacuum cycling for space-grade applications
8. Final inspection with complete traceability and lot coding

Frequently Asked Questions