Product Attributes

Model No.: JQ-47F

Brand: YM

Ambient Temperature: -55℃~85℃

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

Random Vibration: 0.035g²/Hz,15Hz～2000Hz

Cyclone: 2.5kPa(25000m)

Coil Powerconsumption: Line coil power consumption:≤9.5W (stable value)

Dielectricwithstandvoltage: Normal atmospheric pressure:1000Vr.m.s., 50Hz Under low pressure: 300Vr.m. s .,50 Hz

Contact Drop: Initial value ≤120mV Life test less than 180mV

Insulationresistance: ≥ 1 0 0 M Q

Time Parameter: Action time: ≤30 msRelease time: ≤30 ms

Weight: 970g±10%

JQ-47F Military Aviation Contactor:

Premium Direct Replacement for 12590 ECE & 5120A LEACH

The YM JQ-47F Military Aviation Contactor is engineered as a high-performance, drop-in replacement for legacy 12590 ECE and 5120A LEACH contactors, offering enhanced reliability and modern specifications while maintaining perfect compatibility. Designed for mission-critical aerospace applications including drone systems, aircraft engines, and various aviation subsystems, this high-quality contactor delivers superior performance for engine controls, railway systems, and aircraft power distribution. As part of YM's comprehensive aerospace portfolio, it integrates seamlessly with our Military Metal Relays, Aviation Connectors, and Hydraulic Circuit Breakers, providing a reliable upgrade solution for aging systems.

Product Visualization & Technical Views

Engineering Advantages & Core Features

Enhanced Performance for Legacy System Modernization

Perfect Compatibility: Direct mechanical and electrical replacement for 12590 ECE and 5120A LEACH contactors without system modifications.
Energy Efficient Operation: Ultra-low coil power consumption (0.3-0.43W) reduces thermal load and improves overall system efficiency.
Extended Service Life: Rated for 1,000,000 operations at full load (1A, 28V DC resistive) plus additional 1,000,000 cycles at low-level switching (10-50µA, 10-50mV).
Superior Electrical Performance: Exceptionally low contact resistance (≤50mΩ initial, ≤200mΩ after life testing) minimizes power loss and voltage drop.
High-Speed Switching: Fast action and release times (≤4ms) with precise 10-50ms incentive pulse control for accurate system timing.
Military-Grade Environmental Protection: Hermetic sealing with leakage rate ≤10⁻³ Pa·cm³/s protects against moisture, dust, and corrosive elements.
Enhanced Dielectric Strength: Withstands 500Vr.m.s. at normal pressure and 250Vr.m.s. at low pressure (50Hz), with insulation resistance exceeding 500MΩ.
Weight-Optimized Design: Maintains aerospace weight standards at under 3 grams while improving reliability over legacy components.

Manufactured with the same precision engineering as our PCB Board Relays and Solid State Relays, the JQ-47F represents modern reliability for legacy systems.

Complete Technical Specifications

Electrical Performance Characteristics

Coil Power Requirement: 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 Speed: 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 Specification: 10-50ms incentive pulse width for reliable actuation

Physical & Environmental Specifications

Weight: Less than 3 grams
Sealing Performance: Leakage rate ≤10⁻³ Pa·cm³/s
Reference Temperature: Coil voltage specifications referenced at 25°C
Compatibility: Direct replacement for 12590 ECE and 5120A LEACH contactors
Construction: Military-grade materials with hermetic sealing technology

Replacement Installation Procedure

System Identification: Verify existing contactor model (12590 ECE or 5120A LEACH) and confirm electrical system compatibility with JQ-47F specifications.
Safety Preparation: Follow proper lockout/tagout procedures to safely de-energize the system before beginning replacement.
Legacy Component Removal: Carefully remove the existing contactor, documenting wire connections and mounting configuration.
Direct Replacement Installation: Install the JQ-47F using original mounting hardware and positioning identical to the removed component.
Electrical Reconnection: Reconnect all wires to corresponding terminals using proper aerospace wiring techniques, similar to Military Aviation Connector installation standards.
Functional Testing: Restore power and perform comprehensive testing including contact operation verification, timing validation, and system integration checks.

Primary Application Environments

Comprehensive Replacement Solution Across Aerospace

Legacy Aircraft Electrical Systems: Direct replacement in aging aircraft requiring reliable 12590 ECE or 5120A LEACH substitution for maintenance and modernization programs.
Modern Drone & UAV Systems: Power management for propulsion, avionics, and payload systems where reliability supersedes legacy component limitations.
Aircraft Engine Control Units: Integration into engine management, fuel control, and ignition systems for both legacy and updated aircraft.
Ground Support Equipment: Modernization of test equipment, maintenance platforms, and ground power units with improved reliability components.
Railway & Specialized Transportation: Applications in transportation control systems requiring aerospace-grade reliability, often integrated with Aviation Temperature Sensors and Military Pressure Sensors for complete system management.

Like our New Energy Relays designed for evolving transportation technologies, the JQ-47F addresses legacy system challenges with modern engineering solutions.

Procurement & Operational Benefits

Reduced Operational Downtime: Direct replacement capability minimizes aircraft or equipment out-of-service time during maintenance cycles.
Enhanced System Reliability: Improved specifications provide superior performance versus aging original components, reducing future maintenance requirements.
Cost-Efficient Modernization: Avoids expensive system redesigns by offering a compatible upgrade path for existing installations.
Supply Chain Security: Consistent manufacturing by YM provides reliable supply versus uncertain availability of legacy components.
Technical Compatibility: Maintains perfect interoperability with existing systems while offering improved performance characteristics.
Weight Management: Preserves original weight specifications critical for aerospace balance and performance calculations.

Quality Standards & Manufacturing Excellence

The JQ-47F is produced in facilities implementing aerospace-grade quality management systems aligned with industry standards. While maintaining perfect backward compatibility with legacy installations, our manufacturing processes incorporate modern reliability enhancements and rigorous testing protocols. Each contactor undergoes comprehensive verification to ensure it meets or exceeds original 12590 ECE and 5120A LEACH specifications while delivering improved performance characteristics.

Customization & Special Application Support

While designed as a direct replacement, YM offers engineering support for modified requirements based on the JQ-47F platform:

Alternative coil voltage and resistance configurations
Special marking and identification per customer documentation requirements
Extended environmental and life testing protocols
Custom documentation packages including test reports and certificates
Special packaging for specific logistics and handling requirements

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