Military Aviation Smart Metal Sealed Relay JZC-4M

Product Overview

The JZC-4M is a high-reliability Military Metal Sealing Relay engineered as a premium replacement for legacy CII HFC series components. This Aviation DC Relay features robust 4kPa environmental sealing and military-grade construction for demanding aerospace applications. As a precision Military Electromagnetic Relay, it delivers reliable 2A switching at 28VDC with DPDT configuration for versatile circuit control. Manufactured by YM with 18+ years of aerospace component expertise, this DPDT 8Pin 27V Relay provides enhanced performance and reliability as a direct drop-in replacement for aging HFC series installations.

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Technical Specifications

• Contact Configuration: DPDT (Double Pole Double Throw)
• Coil Voltage: 27VDC Standard (24VDC option available)
• Contact Rating: 2A @ 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: 4kPa pressure rating; Leakage rate ≤10⁻³ Pa·cm³/s
• Vibration Resistance: MIL-STD-202 Method 204 compliant
• Operating Temperature: -65°C to +125°C
• Replaces: CII HFC series relays (direct form-fit-function replacement)

Key Features & Advantages

1. Enhanced Sealing Technology: 4kPa pressure rating with advanced hermetic sealing for extreme altitude operation.
2. Military-Grade Durability: SUS304/316 stainless steel construction withstands harsh environmental conditions.
3. Direct Legacy Replacement: Pin-for-pin compatible with CII HFC series, eliminating redesign and requalification costs.
4. Optimized PCB Board Relay Design: Engineered for excellent solderability and thermal management in high-density PCB applications.
5. Extended Service Life: 1 million operations at rated load with minimal contact resistance degradation.
6. Consistent Manufacturing Quality: SGS-audited production ensures batch-to-batch consistency and reliability.
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Application Scenarios

This high-performance Military Metal Relay is designed for critical aerospace and defense applications:

• Aircraft Avionics Systems: Navigation equipment, communication systems, and flight control interfaces
• Engine Control Units: Fuel system controls, ignition circuits, and auxiliary power management
• Military Drone Electronics: Flight controller interfaces, sensor switching, and payload control circuits
• Ground Support Equipment: Test and maintenance systems requiring HFC series compatibility
• Industrial Control Systems: High-reliability automation where standard Industrial Power Relay components are insufficient
• Legacy System Sustainment: Direct replacement in aging CII HFC installations without system modification

Installation & Integration Guide

1. System Verification: Confirm existing system uses CII HFC series DPDT configuration.
2. PCB Compatibility Check: Verify footprint matches HFC series layout and pin assignments.
3. Component Removal: Carefully desolder existing HFC relay using temperature-controlled equipment.
4. Surface Preparation: Clean PCB pads thoroughly to ensure optimal solder joint quality.
5. Precision Placement: Align JZC-4M with correct pin orientation matching original component.
6. Soldering Process: Use lead-free solder at 320-350°C with appropriate thermal management.
7. Electrical Testing: Perform continuity and insulation resistance tests on all contacts.
8. Functional Verification: Test relay operation under actual load conditions to confirm performance.

Procurement Value Proposition

• Reduced Lifecycle Costs: Direct replacement eliminates expensive system redesign and requalification.
• Supply Chain Security: Reliable manufacturing from audited factory ensures consistent availability.
• Enhanced Reliability: Superior materials and construction extend MTBF compared to original HFC components.
• Technical Support Access: Direct engineering consultation for integration and customization requirements.
• Inventory Optimization: Consolidate multiple HFC variants with one superior, available replacement component.

Certifications & Compliance

• CE and UL certified components and materials
• Compliant with MIL-PRF-6106 Military Relay specifications
• SGS-audited manufacturing processes and quality systems
• RoHS compliant materials and production methods
• ISO 9001:2015 certified quality management system
• Compatibility verified with CII HFC series specifications

Customization Options

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

• Alternative coil voltages (5V, 12V, 24V, 48VDC) for specific system requirements
• Modified contact configurations or current ratings
• Enhanced sealing for specific altitude/pressure requirements
• Special testing and screening (extended vibration, thermal cycling)
• Custom pin configurations or termination styles
• Private labeling and application-specific documentation packages

Our manufacturing expertise spans Automotive Relay, PCB Signal Relay, and New Energy Relay technologies, with proven ODM experience serving global aerospace manufacturers.

Quality Assurance Process

Every JZC-4M undergoes rigorous 6-stage quality verification:

1. Incoming material certification with full traceability documentation
2. Precision machining with automated SPC monitoring and control
3. Contact assembly with optimized materials for low resistance and long life
4. Hermetic sealing with 100% leak rate testing and verification
5. Comprehensive electrical testing across specified temperature range
6. Final inspection with HFC compatibility verification and lot coding

Frequently Asked Questions