XI'AN YUMU ELECTRONICS TECHNOLOGY CO.,LTD
XI'AN YUMU ELECTRONICS TECHNOLOGY CO.,LTD
Home> PRODUCTS> Aviation DC Relay> Polarized Aviation Relay> Military Aviation Metal DC Relay JRW-221MA
Military Aviation Metal DC Relay JRW-221MA
Military Aviation Metal DC Relay JRW-221MA
Military Aviation Metal DC Relay JRW-221MA

Military Aviation Metal DC Relay JRW-221MA

Min. Order:1

Product Description
Product Attributes

Model No.JRW-221MA TO-5

BrandYM

OutputDc

Relay TypeTelecom

Ambient Temperature-55℃~85℃

Sinusoidal Vibratio15g,(10~2000)Hz

Randomvibrati0.2g²/Hz,169.1m/s

Cyclone4kPa

Coil Power Consumptio N≤0.5W

Dielectric Withstand VoltageNormal atmospheric pressure: 500Vr.m.s., 50Hz Under low pressure: 125Vr.m.s., 50Hz

Contact Load And LifeeResistance, 1A,28 Vd.c., 2×10⁴ times Resistance, 0.5A,28 Vd.c., 1×10⁵ times Low level, (10-50)μA, (10-50) mV, 1×10⁵ times

Insulation Resistance≥ 1 0 0 0 0 M Q

Contact ResistanceInitial value≤100mΩ Life test after≤200mΩ

TightnessLeakage rate≤10³ Pa· cm³/s

Packaging & Delivery
TO-5 Military Relay 891

Military Metal Relay JRW-221MA: Enhanced Teledyne 114D Replacement with Transient Suppression

Product Overview

The JRW-221MA Military Metal Relay is engineered as a superior replacement for Teledyne 114D series components, featuring advanced coil transient suppression and 4KPa hermetic sealing with reverse polarity protection. As a sophisticated Military Metal Sealing Relay with TO-5 package standardization, this component provides enhanced electromagnetic compatibility and system protection for modern aviation, military, and industrial applications requiring both authentic Teledyne replacement and advanced noise reduction capabilities in sensitive electronic environments.

Technical Specifications

Electrical Parameters

  • Model: JRW-221MA TO-5
  • Configuration: Standard Switching Relay
  • Voltage: 27V DC Standard
  • Coil Power: 0.3-0.43W
  • Contact Rating: 1A at 28V DC

Enhanced Protection Features

  • Coil Transient Suppression: Integrated EMI/RFI reduction
  • Reverse Polarity Protection: Circuit damage prevention
  • 4KPa Sealing: Enhanced environmental protection
  • Contact Resistance: ≤50mΩ initial, ≤200mΩ post-life

Performance Specifications

  • Life Expectancy: 1×10⁶ operations
  • Switching Speed: ≤4ms operate/release
  • Dielectric Strength: 500V RMS normal, 250V RMS low pressure
  • Weight: <3 grams
  • EMI Reduction: Enhanced transient suppression

Product Features & Advantages

Advanced Transient Suppression Technology

The JRW-221MA incorporates integrated coil transient suppression that significantly reduces electromagnetic interference (EMI) and radio frequency interference (RFI), providing superior performance in sensitive electronic systems compared to standard Aviation DC Relays or basic PCB Board Relays without EMI protection.

Authentic Teledyne 114D Replacement

Maintaining exact TO-5 package compatibility and electrical characteristics, this relay ensures seamless Teledyne 114D series replacement while offering enhanced protection features. This approach provides better system reliability than generic Automotive Relays or standard Industrial Power Relays for sensitive applications.

Comprehensive System Protection

With combined reverse polarity protection and 4KPa hermetic sealing, the JRW-221MA offers multi-layered system protection against installation errors and environmental contaminants, providing advantages over standard PCB Signal Relays and basic Flash Relays in demanding applications.

YUMU Electronics Enhanced Design

Our expertise in Military Electromagnetic Relays and Sealed Magnetic Latching Relays enables development of replacement components that incorporate modern EMI protection while maintaining authentic compatibility with legacy Teledyne systems.

Application Scenarios

Sensitive Electronic Systems

  • Avionics with sensitive instrumentation
  • Medical equipment control circuits
  • Communication system electronics
  • Precision measurement systems

Military & Aerospace

  • Military communication equipment
  • Aircraft navigation systems
  • Radar and sensor electronics
  • Electronic warfare systems

Industrial & Commercial

  • Industrial automation with sensitive controls
  • Laboratory equipment electronics
  • Telecommunications infrastructure
  • Power management systems

Installation Guidelines

Enhanced System Installation

  1. Verify original Teledyne 114D replacement requirement
  2. Implement ESD and EMI protection procedures
  3. Remove existing component carefully
  4. Confirm JRW-221MA compatibility
  5. Install utilizing enhanced protection features
  6. Test system EMI performance

EMI Protection Considerations

  • Utilize transient suppression benefits in sensitive circuits
  • Verify EMI reduction meets system requirements
  • Implement proper grounding for optimal performance
  • Test electromagnetic compatibility thoroughly

Procurement Benefits

System Performance Advantages

  • Reduced electromagnetic interference
  • Enhanced system reliability
  • Improved signal integrity
  • Reduced maintenance requirements

Technical Advantages

  • Authentic Teledyne replacement compatibility
  • Advanced EMI protection technology
  • Multi-layered system protection
  • Modern features in legacy package

Standards Compliance

The JRW-221MA meets:

  • Teledyne 114D series specifications
  • TO-5 package mechanical standards
  • Military EMI/EMC requirements
  • 4KPa hermetic sealing standards
  • ISO 9001:2015 quality system

Customization Options

Available customizations include:

  • Enhanced EMI protection configurations
  • Application-specific transient suppression
  • Custom protection circuit designs
  • Specialized testing for EMI requirements
  • Metal Sealed Military Relay JRW-221MA TO-5
  • Military Aviation Metal DC Relay JRW-221MA TO-5
  • Military Metal Relay with coil transient suppression function JRW-221MA
  • Aviation DC Relay JRW-221MA TO-5 Replace Of Teledyne 114D
  • Aviation Relay With Reverse polarity protection function JRW-221MA  4Kpa
  •  
  • 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

Production Quality

Enhanced manufacturing includes:

  1. Precision TO-5 component fabrication
  2. Integrated transient suppression circuit assembly
  3. Enhanced 4KPa hermetic sealing process
  4. Comprehensive EMI performance testing
  5. Final protection feature validation

Frequently Asked Questions

How does transient suppression benefit electronic systems?

Coil transient suppression reduces electromagnetic interference that can disrupt sensitive electronics, improve signal integrity, and prevent false triggering in adjacent circuits, providing critical advantages in systems with sensitive instrumentation or communication equipment.

Is this compatible with existing Teledyne 114D installations?

Yes, the JRW-221MA maintains exact TO-5 package and electrical compatibility while adding enhanced EMI protection and reverse polarity protection features for improved system reliability.

How does this compare to standard DPDT 8Pin 27V Relay designs?

While standard DPDT 8Pin 27V Relay designs focus on basic switching, the JRW-221MA specifically incorporates advanced EMI protection and system safety features while maintaining legacy TO-5 compatibility.

What testing validates EMI protection performance?

Each batch undergoes comprehensive electromagnetic compatibility testing including transient suppression verification, EMI emissions testing, and performance validation in sensitive electronic circuits.

Can you customize EMI protection levels?

Yes, our engineering team can develop custom transient suppression configurations based on specific application EMI requirements and system compatibility needs.

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