High-Reliability Power Switching Solution for Demanding Applications
YM presents the JQ-28FH Military Aviation Contactor, a premium-grade, high-precision switching component engineered for critical aviation, drone, and aerospace systems. Designed to meet stringent military standards, this contactor ensures exceptional reliability, durability, and performance in controlling engines, actuators, and high-power circuits in aircraft, trains, and specialized industrial machinery. As a core component alongside our Military Metal Relay and Aviation Magnetic Valve series, the JQ-28FH embodies our commitment to advanced engineering for severe environments.
Features & Advantages
The JQ-28FH stands out in the market due to its specialized design for high-vibration, high-reliability scenarios. It shares the same rigorous manufacturing ethos as our Automotive Relay and Industrial Power Relay lines but is optimized for aerial applications.
- Ultra-Low Power Consumption Coil: Energy-efficient operation with a coil power consumption of only (0.3~0.43)W, reducing system heat and power draw.
- Exceptional Contact Reliability: Features extremely low contact resistance (initial ≤50mΩ) and maintains stable performance even after extensive lifecycle testing (≤200mΩ post-test), ensuring consistent signal and power integrity.
- High-Speed Switching: Fast action and release times (≤4ms) enable precise control crucial for flight systems and automated processes.
- Rugged & Sealed Construction: Features a hermetic seal with a leakage rate ≤10⁻¹ Pa·cm³/s, protecting internal components from moisture, dust, and varying pressure conditions, similar to the protection offered by our Aviation Oil Sealed Valve.
- Military-Grade Durability: Engineered for long service life with a high number of operational cycles (1x10⁶ operations at rated load), matching the reliability expected from Military Electronic Horn and sensor components.
- Lightweight Design: Weighing less than 3 grams, it is ideal for weight-sensitive applications in drones and aircraft.
Technical Specifications
Electrical Parameters
- Coil Power Consumption: (0.3 ~ 0.43)W
- Contact Load & Life:
- Resistive: 1A, 28V DC, 1 x 10⁶ operations.
- Low Level: (10~50)μA, (10~50)mV, 1 x 10⁶ operations.
- Contact Resistance:
- Initial Value: ≤ 50mΩ.
- After Life Test: ≤ 200mΩ.
- Time Parameters:
- Action Time: ≤ 4ms.
- Release Time: ≤ 4ms.
- Incentive Pulse Width: (10～50) ms.
Isolation & Environmental Specifications
- Dielectric Withstanding Voltage:
- At Normal Atmospheric Pressure: 500Vr.m.s., 50Hz.
- At Low Pressure: 250Vr.m.s., 50Hz.
- Insulation Resistance:
- At Normal Atmospheric Pressure: >500 MΩ.
- After High-Level Life Test: >50 MΩ.
- Weight: < 3g.
- Tightness (Sealing): Leakage rate ≤ 10⁻¹ Pa·cm³/s.
- Coil Voltage (Vdc) at 25°C: Standard ratings available; please inquire for specific voltage options.
Application Scenarios
The JQ-28FH Aviation Contactor for Aircraft is a versatile component designed for systems where failure is not an option.
- Unmanned Aerial Vehicles (Drones): Power distribution, motor control, and payload activation in surveillance, delivery, and industrial inspection drones.
- Manned & Unmanned Aircraft: Control of auxiliary systems, lighting, fuel pumps, and non-essential engine components.
- Ground Support & Railway Systems: Integration into high-reliability control panels for trains and ground power units, complementing components like the Hydraulic Circuit Breaker.
- Specialized Industrial Machinery: Used in automated systems requiring fast, reliable switching under continuous operation or in harsh environments.
- Test & Measurement Equipment: Providing precise circuit control in aviation-grade test rigs and sensor calibration equipment, such as those using Aviation Pressure Sensors.
How to Integrate the JQ-28FH Contactor
- System Compatibility Check: Verify that your control circuit voltage matches the specified coil voltage of the contactor. Ensure the load (current, voltage type - DC) is within the rated contact load parameters.
- Mechanical Mounting: Securely mount the contactor using appropriate hardware in a location that minimizes exposure to excessive vibration or shock, away from direct heat sources.
- Electrical Connection: Solder or connect wires to the coil terminals and contact terminals as per the provided diagram. Use appropriate gauge wiring for the load current. For systems involving multiple control elements like a PCB Signal Relay, ensure proper circuit isolation.
- Sealing & Environmental Protection: If used in exposed environments, ensure the panel or enclosure provides additional protection. The contactor's own seal is designed for internal protection.
- Functional Testing: Before full system integration, test the contactor's operation by applying the coil voltage and verifying the switching action and load control. Monitor for any abnormal heating.
- System Integration & Validation: Integrate into the final system and perform full functional tests under simulated or actual operating conditions to validate performance.
Value for B2B Buyers
Choosing YM's JQ-28FH delivers tangible business and operational advantages:
- Enhanced System Reliability: Minimizes downtime and maintenance costs in critical applications, protecting your end-product reputation.
- Supply Chain Confidence: Source from a manufacturer with expertise across a broad range, from Solid State Relay to complex Military Aviation Connector systems, ensuring component compatibility and support.
- Weight & Efficiency Optimization: The lightweight and low-power design helps your final product meet stringent efficiency and performance targets, crucial in aviation and mobility sectors.
- Reduced Total Cost of Ownership: Long lifecycle and durable construction mean fewer replacements over the lifespan of your equipment.
- Compliance Simplification: Built to meet high industry benchmarks, aiding your own product's certification process for demanding markets.
Manufacturing & Quality Assurance
Every JQ-28FH contactor is produced under a stringent quality management system. Our production process involves:
- Precision machining and assembly in controlled environments.
- 100% electrical performance testing, including contact resistance, insulation resistance, and actuation time.
- Batch-based life cycle and environmental stress testing (including seal integrity checks) to validate durability claims.
- Traceability throughout the manufacturing process, ensuring consistent quality and facilitating any necessary analysis.
This rigorous approach is applied across all YM product lines, including our New Energy Relay and Aviation Microswitch production, guaranteeing components you can trust.
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