Aviation Single DC Contactor JQ-49FH

Engineering Features & Competitive Advantages

The JQ-49FH is engineered as a superior drop-in replacement, incorporating modern materials and advanced manufacturing techniques developed through our expertise in producing Solid State Relays and Hydraulic Circuit Breakers.

• Exact Mechanical & Electrical Interchangeability: Designed as a direct, bolt-for-bolt replacement for 2540 ECE series contactors, enabling seamless system upgrades, maintenance, and lifecycle extension without design modifications.
• Enhanced Contact Performance: Features ultra-low initial contact resistance (≤50mΩ) for maximum power efficiency and minimal voltage drop. Maintains exceptional performance throughout its service life (≤200mΩ post-test), consistent with our premium PCB Board Relay standards.
• High-Speed Precision Switching: Delivers rapid action time (≤3ms) and release time (≤4ms), providing critical timing accuracy for flight control systems, automated sequences, and sensitive electronic controls.
• Military-Grade Hermetic Sealing: Advanced sealed enclosure with maximum leakage rate of ≤10⁻¹ Pa·cm³/s offers superior protection against moisture ingress, dust, chemical exposure, and pressure differentials, utilizing technology proven in our Aviation Oil Sealed Valves.
• Extended Operational Lifespan: Rated for 1,000,000 cycles at full rated load (1A, 28V DC), dramatically reducing maintenance frequency and total lifecycle costs for mission-critical systems.
• Optimized Weight & Power Efficiency: Weighing less than 3 grams with low coil power consumption (0.3-0.43W), ideal for weight-sensitive aerospace applications and systems where thermal management and power budget are critical considerations.
• Robust Electrical Isolation: High dielectric strength (500Vrms at normal pressure) and excellent insulation resistance (>500MΩ) ensure safe, reliable operation in complex electrical environments, compatible with sensitive devices like Aviation Temperature Sensors.
• Wide Environmental Compatibility: Engineered to maintain performance across extended temperature ranges and varying atmospheric conditions typical of aerospace applications.