Reliable Aviation Solutions contactor JQ-46FH

JQ-46FH Military Aviation Contactor:

Compact High-Reliability Power Switching Solution

The JQ-46FH Military Aviation Contactor is a compact, high-performance electromechanical switch engineered for critical power distribution in next-generation aerospace platforms. Designed specifically for applications where space, weight, and absolute reliability are paramount, this contactor is an ideal solution for advanced drone systems, aircraft engine management, and compact avionics suites. As a precision component within YM's renowned Military Aviation Contactor series, it upholds the stringent standards expected in defense and aviation industries.

Leveraging the same manufacturing excellence applied to our Military Metal Relays and High Power Aviation Contactors, the JQ-46FH delivers robust performance in a minimized footprint. Its design prioritizes efficient thermal management, exceptional environmental sealing, and resistance to the harsh conditions typical of aerospace operations, ensuring dependable switching throughout its extended service life.

Product Visualization

   

Technical Specifications

Electrical Performance

• Coil Power Consumption: 0.3W - 0.43W (Optimized for low-energy control systems)
• Contact Load & Lifecycle:
  • Standard Load Rating: 1A at 28V DC (Resistive) for 100,000+ cycles
  • Low-Level Signal Capability: 10-50μA at 10-50mV for 100,000+ cycles
• Contact Resistance:
  • Initial Contact Resistance: ≤ 50mΩ
  • Maximum After Endurance Testing: ≤ 200mΩ
• Switching Dynamics:
  • Actuation Time: ≤ 4ms
  • Release Time: ≤ 4ms
  • Minimum Reliable Control Pulse: 10-50ms

Environmental & Physical Specifications

• Dielectric Strength (Hi-Pot):
  • Standard Atmospheric Pressure: 500V RMS, 50Hz
  • Low Pressure (High Altitude): 250V RMS, 50Hz
• Insulation Resistance:
  • Initial Value: > 500 MΩ
  • Post Life-Cycle Test: > 50 MΩ
• Weight: < 3 grams (Ultra-lightweight for aerospace design)
• Hermetic Sealing Integrity: Leakage rate ≤ 1×10⁻³ Pa·cm³/s
• Reference Conditions: All electrical performance data specified at 25°C ambient temperature.

Key Features & Advantages

• Ultra-Compact & Lightweight: Engineered with a minimal footprint and weight under 3 grams, making it ideal for size and weight-constrained applications in modern drones and advanced avionics, complementing our range of space-saving PCB Board Relays.
• High-Density Reliability: Despite its small size, it delivers full-rated performance for 100,000+ operational cycles, ensuring long-term reliability that reduces system maintenance needs and total cost of ownership.
• Military-Grade Environmental Protection: Features hermetic sealing that provides complete defense against moisture, dust, and corrosive agents, meeting protection standards on par with critical Aviation Oil Sealed Valves.
• Versatile Dual-Load Handling: Uniquely capable of switching both standard power loads (1A/28VDC) and sensitive, low-level control signals (μA/mV), offering design flexibility similar to specialized PCB Signal Relays.
• Optimized Thermal Performance: The compact design incorporates efficient thermal dissipation paths, ensuring stable operation and preventing performance degradation even in thermally challenging environments.
• Robust Vibration & Shock Tolerance: Built to withstand the extreme vibration and shock profiles common in aerospace environments, reflecting YM's expertise in Military Electronic component manufacturing.
• Altitude-Optimized Insulation: Maintains certified dielectric strength at reduced atmospheric pressures, guaranteeing safety and performance integrity throughout an aircraft's flight envelope.

Recommended Integration & Installation Procedure

To ensure optimal performance of the JQ-46FH in your system, please follow these integration guidelines:

1. Design-In Verification: Confirm your application's control voltage matches the coil specification and that the load current (max 1A at 28VDC) aligns with the contact rating. Consider thermal management in the PCB or panel layout.
2. Mechanical Mounting: Securely mount the contactor using the provided features. For PCB mounting, ensure the board layout supports the component's weight and any vibration damping requirements. Avoid placing near significant heat sources.
3. Electrical Connections:
   • Control Circuit: Connect the coil terminals with appropriately gauged wire.
   • Load Circuit: For power switching, use correct wire sizing. For low-level signal applications, implement noise reduction practices such as shielded cabling, consistent with installations for sensitive components like Aviation Temperature Sensors.
4. Pre-Operational Inspection & Testing: Before applying full system power, visually inspect all connections. Conduct basic continuity and insulation resistance checks to verify correct installation.
5. System Functional Test: Energize the control circuit and verify clean switching action of the load. Measure voltage drop if possible, to confirm low contact resistance in circuit.

Application Scenarios

The JQ-46FH is specifically designed for high-performance, space-sensitive applications across modern aerospace and defense systems:

• Miniaturized UAVs & Drones: Primary power switching for compact flight controllers, payload articulation (e.g., gimbal power), and battery management circuits where every gram and cubic millimeter counts.
• Next-Generation Avionics Bays: Power distribution within dense avionics suites, mode selection for communication/navigation equipment, and integration into custom Military Aviation Encoding Switch panels.
• Electric Propulsion Systems: Auxiliary power control within electric and hybrid-electric aircraft powertrains, including management of auxiliary systems and sensors.
• Portable Military & Ground Support Equipment: Reliable switching in man-portable diagnostic tools, field-deployable test sets, and other compact ground support devices.
• Safety-Critical Systems: Suitable for use in redundant circuit paths or backup systems, often working in conjunction with components like Hydraulic Circuit Breakers and Aviation Magnetic Valves to ensure overall system safety.

Procurement Value: The JQ-46FH enables engineers to design more compact, lighter, and more reliable systems. Sourcing this component from YM provides assurance of quality from a manufacturer with deep expertise in both Aviation Contactor for Aircraft and complementary technologies, simplifying your supply chain and reducing integration risk.

Certifications & Compliance

The JQ-46FH is produced in facilities committed to aerospace-grade manufacturing quality. The component is designed and tested to meet the core performance and reliability benchmarks of relevant industry standards. While final certification markings can be tailored to program needs, our processes ensure alignment with:

• Key performance criteria from MIL-STD specifications for environmental stress (vibration, shock, temperature).
• Industry-accepted protocols for the reliability testing of aerospace electromechanical components.
• RoHS compliance is available as a standard offering or upon specific request.

Our quality documentation is designed to support customer qualification processes, and we can provide necessary test reports for system integration.

Customization Options

YM offers flexible customization for the JQ-46FH platform to meet unique application demands:

• Electrical Tailoring: Specific coil voltage (Vdc) requirements outside standard offerings.
• Connection Interfaces: Custom lead lengths, wire types, or pre-attached Military Aviation Connectors.
• Mechanical Adaptations: Alternate mounting bracket designs or specific PCB pin configurations.
• Testing & Screening: Additional lot acceptance testing, extended burn-in, or provision of specific performance data reports.
• Identification & Marking: Custom part numbering, date codes, or client-specific labeling for full traceability.

Production & Quality Assurance Process

Each JQ-46FH contactor is manufactured under a controlled, documented process to ensure consistent high quality:

1. Precision Material Selection: Aerospace-grade materials are sourced and verified against strict specifications.
2. Micro-Manufacturing & Assembly: Miniaturized components are assembled in a controlled environment using specialized equipment to ensure accuracy and consistency.
3. Sealing & Leak Testing: The hermetic sealing process is followed by mandatory leak detection testing to validate the specified environmental integrity.
4. 100% Electrical Performance Testing: Every unit is tested for contact resistance, operate/release time, coil parameters, and dielectric strength.
5. Quality Audit & Packaging: A final quality audit is performed before units are packaged in protective, ESD-safe materials.

This rigorous approach is applied across our manufacturing, whether for compact contactors like the JQ-46FH or for our Solid State Relays and other precision components.