Military Metal DC Relay JRC-201MA

Product Overview

The JRC-201MA is a high-performance Military Metal Sealing Relay engineered as a direct replacement for legacy CII 3SBC series components. This Aviation DC Relay features exceptional environmental sealing rated at 0.27Kpa and withstands acceleration forces up to 100g, making it ideal for extreme aerospace applications. As a premium Military Electromagnetic Relay, it delivers reliable 1A switching at 28VDC with military-grade durability. Manufactured by YM with 18+ years of specialized experience, this unit represents superior PCB Board Relay technology for critical systems where failure is not an option.

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Technical Specifications

• Coil Voltage: 27VDC Standard
• 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; Post-life ≤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 Rating: 0.27Kpa operating pressure; Leakage rate ≤10⁻³ Pa·cm³/s
• Vibration/Shock Resistance: 100g acceleration rating
• Operating Temperature: -65°C to +125°C
• Replaces: CII 3SBC series (direct form-fit-function replacement)

Key Features & Advantages

1. Legacy System Compatibility: Direct drop-in replacement for CII 3SBC series with identical footprint and pin configuration.
2. Extreme Environment Sealing: 0.27Kpa pressure rating with ≤10⁻³ Pa·cm³/s leakage for high-altitude/low-pressure Aviation Applications.
3. Military-Grade Durability: SUS304/316 stainless steel construction withstands 100g acceleration, shock, and vibration.
4. Enhanced Reliability: 1 million operations at rated load with stable contact resistance throughout service life.
5. Fast Response Time: ≤4ms switching speed ensures precise timing for critical control circuits.
6. Optimized Power Efficiency: Low 0.3-0.43W coil consumption reduces system power requirements.

Application Scenarios

This Military Metal Relay is designed for mission-critical aerospace and defense systems:

• Aircraft Avionics: Flight control systems, engine management units, and navigation equipment
• Military Drone Systems: Flight controller power switching, payload activation, and safety circuit management
• Satellite & Space Systems: Low-pressure environment applications requiring reliable PCB Signal Relay performance
• Ground Military Vehicles: Communication system interfaces, surveillance equipment control, and weapon system electronics
• Industrial Automation: High-vibration environments where standard Industrial Power Relay components fail prematurely
• Legacy System Maintenance: Direct replacement in existing CII 3SBC installations without modification or requalification
• Metal Sealed Military Relay JRC-201MA
• Military Metal Relay JRC-201MA Replace of  CII Relay 3SBC
• Aviation Grade Metal Relay JRC-201MA 0.27Kpa as Brand CII Relay 3SBC Series
• Aviation Grade DC Metal Relay with acceleration speed 100g
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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 Steps

1. System Assessment: Verify existing relay is CII 3SBC series and note specific application parameters.
2. PCB Preparation: Remove old relay using appropriate desoldering equipment (recommended temperature: 350°C max).
3. Pad Cleaning: Thoroughly clean PCB pads to ensure optimal solderability for new installation.
4. Component Placement: Align JRC-201MA with correct pin orientation (match notch/pin 1 indicator).
5. Soldering Procedure: Use lead-free solder at 320-350°C with minimal dwell time to prevent thermal damage.
6. Visual Inspection: Check for proper solder joints, alignment, and absence of bridges or cold joints.
7. Functional Testing: Test at nominal 27VDC and verify switching characteristics meet system requirements.
8. Environmental Validation: For critical applications, perform leakage test per your quality procedures.

Value for Procurement Professionals

• Reduced Qualification Costs: Direct replacement eliminates extensive testing and requalification processes.
• Supply Chain Security: Reliable manufacturing from SGS-audited factory reduces dependency on obsolete components.
• Extended System Lifecycle: Superior construction extends MTBF and reduces total lifecycle maintenance costs.
• Technical Support Access: Direct engineering support for integration challenges and custom requirements.
• Inventory Optimization: Consolidate multiple obsolete part numbers with one superior, readily available replacement.

Certifications & Compliance

• CE and UL component certifications
• Compliant with MIL-PRF-6106 military relay specifications
• SGS-audited manufacturing processes and quality systems
• RoHS compliant materials and production
• ISO 9001:2015 certified quality management system
• SUS304/SUS316 stainless steel per military specifications

Customization Options

While optimized as a direct 3SBC replacement, YM offers comprehensive customization:

• Alternative coil voltages (12V, 24V, 48VDC) for specific system requirements
• Modified pin configurations or termination styles
• Enhanced sealing for specific pressure/altitude requirements
• Special testing and screening (burn-in, thermal cycling, vibration testing)
• Private labeling and customized documentation
• Value-added assemblies with protective covers or mounting hardware

Our manufacturing expertise extends across Automotive Relay, Flash Relay , and Solid State Relay platforms, with proven ODM/OEM experience serving global defense contractors.

Quality Assurance Process

Every JRC-201MA undergoes rigorous 6-stage quality verification:

1. Incoming material certification (metal alloys, contact materials, insulation)
2. Precision manufacturing with automated SPC monitoring
3. Contact assembly with precious metal alloys for optimal performance
4. Hermetic sealing with 100% leak testing validation
5. Comprehensive electrical testing across temperature range
6. Final inspection with traceability documentation and lot coding

Frequently Asked Questions