XI'AN YUMU ELECTRONICS TECHNOLOGY CO.,LTD
XI'AN YUMU ELECTRONICS TECHNOLOGY CO.,LTD
Home> PRODUCTS> Aviation Contactor> Three Phase Sealed Aviation Contactor> Reliable Aviation DC Contactor JQ-38F
Reliable Aviation DC Contactor JQ-38F
Reliable Aviation DC Contactor JQ-38F
Reliable Aviation DC Contactor JQ-38F

Reliable Aviation DC Contactor JQ-38F

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Product Description
Product Attributes

Model No.JQ-38F

BrandYM

Ambient Temperature-55℃~85℃

Vibration (sine Wave)98m/s²,5Hz~2000Hz

Random Vibration0.035g²/Hz,15Hz~2000Hz

Cyclone2.5kPa(25000m)

Coil PowerconsumptionLine coil holding power:≤10.5W (stable value)

DielectricwithstandvoltageNormal atmospheric pressure: 500Vr.m.s., 50Hz Under low pressure: 300Vr.m.s.,50Hz

Contact DropInitial value ≤120mV Life test less than 180mV

Insulationresistance≥ 1 00 M Q

Time ParameterAction time: ≤40 msRelease time: ≤30 ms

Weight≤1600g

Packaging & Delivery
Aviation Contactor

JQ-38F Military Aviation Contactor:

Direct Replacement for 12595 ECE with Enhanced Performance

The YM JQ-38F Military Aviation Contactor is a high-reliability, form-fit-function replacement for the legacy 12595 ECE contactor, designed to meet and exceed original specifications. Engineered for critical aerospace applications including drone systems, aircraft engines, and various aviation subsystems, this high-quality contactor delivers robust performance for engine controls, train systems, and aircraft power management. As part of YM's comprehensive aerospace portfolio, it complements our expertise in Military Metal Relays, Aviation Connectors, and Hydraulic Circuit Breakers, providing a reliable upgrade path for existing systems.

Product Images & Technical Documentation

Core Advantages & Product Features

Superior Performance as a 12595 ECE Replacement

  • Direct Drop-In Replacement: Perfect mechanical and electrical compatibility with existing 12595 ECE installations, minimizing retrofit complexity and cost.
  • Enhanced Efficiency: Ultra-low coil power consumption (0.3-0.43W) reduces system thermal load and improves overall energy efficiency.
  • Extended Operational Life: Rated for 1,000,000 operations at full load (1A, 28V DC resistive) plus additional 1,000,000 cycles at low-level switching conditions (10-50µA, 10-50mV).
  • Improved Electrical Characteristics: Exceptionally low contact resistance (≤50mΩ initial, ≤200mΩ after life testing) ensures minimal power loss and voltage drop.
  • High-Speed Switching Performance: Fast action and release times (≤4ms) with controlled 10-50ms incentive pulses for precise system timing.
  • Robust Environmental Sealing: Hermetic construction with leakage rate ≤10⁻³ Pa·cm³/s provides superior protection against moisture, contaminants, and corrosive atmospheres.
  • Reliable Dielectric Performance: Withstands 500Vr.m.s. at normal pressure and 250Vr.m.s. at low pressure (50Hz), with insulation resistance exceeding 500MΩ.
  • Weight-Optimized Design: Weighing under 3 grams, maintaining aerospace weight savings while enhancing reliability.

Manufactured with the same precision as our PCB Board Relays and Solid State Relays, the JQ-38F offers a reliable upgrade for legacy systems.

Complete Technical Specifications

Electrical Performance Parameters

  • Coil Power Consumption: 0.3W - 0.43W
  • Contact Rating: 1A at 28V DC (resistive load)
  • Contact Life Expectancy: 1×10⁶ operations at rated load; 1×10⁶ operations at low-level load
  • Contact Resistance: Initial value ≤50mΩ; After life testing ≤200mΩ
  • Switching Timing: Action time ≤4ms; Release time ≤4ms
  • Dielectric Strength: 500Vr.m.s. @ normal atmospheric pressure (50Hz); 250Vr.m.s. @ low pressure (50Hz)
  • Insulation Resistance: >500MΩ @ normal pressure; >50MΩ after high-level life testing
  • Control Pulse Requirements: 10-50ms incentive pulse width for reliable actuation

Physical & Environmental Specifications

  • Weight: Less than 3 grams
  • Sealing Integrity: Leakage rate ≤10⁻³ Pa·cm³/s
  • Reference Operating Condition: Coil voltage specifications referenced at 25°C
  • Compatibility: Direct replacement for 12595 ECE contactor
  • Construction: Military-grade materials with hermetic sealing

Replacement & Installation Procedure

  1. System Compatibility Verification: Confirm that your existing system uses the 12595 ECE contactor and that electrical parameters match JQ-38F specifications.
  2. Circuit De-energization: Safely disconnect power from the system following proper lockout/tagout procedures.
  3. Existing Contactor Removal: Carefully remove the legacy 12595 ECE contactor, noting wire connections and orientation.
  4. Direct Replacement Installation: Install the JQ-38F in the exact same position using original mounting hardware.
  5. Electrical Reconnection: Reconnect wires to corresponding terminals, ensuring secure connections using proper aerospace wiring practices similar to Military Aviation Connector standards.
  6. Functional Verification: Restore power and perform comprehensive testing including contact operation verification, timing checks, and system integration testing.

Primary Application Environments

Mission-Critical Replacement Across Aerospace & Defense

  • Legacy Aircraft Systems Upgrade: Direct replacement in existing Aircraft Electrical Systems requiring reliable 12595 ECE substitution for maintenance and modernization programs.
  • Unmanned Aerial Vehicle Systems: Power switching for propulsion, payloads, and avionics in military and commercial drones where reliability is paramount.
  • Aircraft Engine Controls: Integration into engine control units, fuel management, and ignition systems for both legacy and modern aircraft.
  • Ground Support Equipment Modernization: Upgrading test equipment, maintenance platforms, and ground power units with improved reliability components.
  • Railway & Specialized Vehicle Systems: Applications in transportation systems requiring aerospace-grade reliability, often integrated with Aviation Temperature Sensors and Military Pressure Sensors for comprehensive system control.

Like our New Energy Relays designed for evolving transportation sectors, the JQ-38F addresses legacy system challenges with modern reliability.

Value for International Procurement

  • Reduced System Downtime: Direct replacement capability minimizes aircraft or equipment out-of-service time during maintenance or upgrades.
  • Improved Reliability Over Legacy Parts: Enhanced specifications provide better performance than original components, reducing future maintenance frequency.
  • Cost-Effective Modernization: Avoids expensive system redesigns by providing a compatible upgrade path for existing installations.
  • Supply Chain Security: Manufactured by YM with consistent quality control, providing reliable supply versus uncertain legacy component availability.
  • Technical Support Advantage: Backed by engineering expertise from a manufacturer of diverse Aerospace Components including Industrial Power Relays and Automotive Relays.
  • Weight Maintenance: Maintains original weight specifications while offering improved performance characteristics.

Quality Standards & Compliance

The JQ-38F is manufactured in facilities implementing aerospace-grade quality management systems. While maintaining backward compatibility with 12595 ECE installations, our production processes incorporate modern reliability enhancements. The contactor is produced with the same stringent standards applied to our complete range of aerospace components, including Aviation Rocker Switches and Aviation Microswitches, ensuring consistent performance in critical applications.

Customization & Special Requirements

While the JQ-38F is designed as a direct replacement, YM offers engineering support for modified requirements based on this platform:

  • Alternative coil voltage configurations
  • Special marking and identification per customer specifications
  • Extended environmental testing beyond standard requirements
  • Batch testing and certification documentation packages
  • Custom packaging for specific logistics requirements

Our experience with custom PCB Signal Relays and Latching Relays enables adaptation to specific application needs while maintaining compatibility.

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