KN3 Series Military Aviation Switch -
Versatile Multi-Pole Switching for Critical Aerospace Systems
YM's KN3 Series Military Aviation Switch represents a versatile and highly reliable switching solution engineered for the most demanding aerospace, defense, and industrial applications. This series offers multiple pole configurations - including 2P (SPST), 4P, and 6P (DPDT) variants - providing design engineers with flexible options for complex circuit control in drone systems, aircraft engines, train controls, and aviation instrumentation. Built with the same rigorous standards applied to our Military Metal Relay and Metal Sealing Relay product lines, the KN3 Series ensures uncompromising performance in extreme environmental conditions.
As part of YM's comprehensive aviation component ecosystem, the KN3 Series seamlessly integrates with our Military Aviation Connectors, Aviation Rocker Switches, and sensor systems, offering a complete, reliable solution for modern aerospace electrical systems.
Product Configuration Gallery
Technical Specifications
Electrical Characteristics (All Configurations)
- Coil Power Consumption: Energy-efficient design, operating between 0.3W and 0.43W.
- Contact Load Ratings & Lifespan:
- Standard Power Switching: 1A at 28V DC resistive load, rated for minimum 1,000,000 operational cycles.
- Low-Level Signal Switching: Capable of reliably handling (10-50)μA at (10-50)mV for the same extended lifecycle, ideal for sensitive control and monitoring circuits.
- Contact Resistance: Excellent electrical performance with initial contact resistance ≤50mΩ. Post-durability testing, resistance remains ≤200mΩ across all poles.
- Switching Speed: Fast response times with actuation ≤4ms and release ≤4ms, suitable for time-critical aerospace applications.
- Dielectric Strength:
- Standard Atmospheric Conditions: 500V RMS at 50Hz withstand voltage.
- Low-Pressure (High Altitude) Conditions: 250V RMS at 50Hz, ensuring safety in aviation environments.
- Insulation Resistance: Maintains excellent isolation with >500MΩ initially and >50MΩ after accelerated life testing.
Mechanical & Environmental Specifications
- Configuration Options: Available in 2P (SPST), 4P, and 6P (DPDT) variants to accommodate diverse circuit requirements.
- Weight: Lightweight construction under 3 grams per switch, critical for weight-sensitive aerospace applications.
- Hermetic Sealing: Features advanced sealing with maximum leakage rate ≤10⁻³ Pa·cm³/s. This Aviation Oil Sealed Valve-grade protection ensures reliability in contaminated or variable pressure environments.
- Control Signal Compatibility: Compatible with incentive pulse widths from 10ms to 50ms for flexible integration with various digital controllers.
- Reference Operating Conditions: Performance specifications characterized at 25°C ambient temperature.
Product Features & Advantages
- Configurable Pole Options: The KN3 Series offers 2P, 4P, and 6P configurations, allowing engineers to select the exact switching complexity needed without over-engineering or compromising functionality.
- Military-Grade Construction: Incorporates ruggedized design principles from our Military Electronic Horn and Military Pressure Sensor manufacturing, ensuring resilience against shock, vibration, and extreme temperatures.
- Advanced Hermetic Sealing Technology: Utilizes proprietary metal-to-ceramic sealing, a core technology from our Metal Sealing Relay series, guaranteeing long-term internal integrity in harsh operating environments.
- Dual-Function Contact System: Engineered contacts handle both standard power switching and delicate low-level signals with equal reliability, reducing component count in mixed-signal systems.
- High-Density Design: Multiple poles packaged in a compact form factor, saving valuable space in densely packed avionics racks and drone control systems.
- Enhanced Signal Integrity: Low and stable contact resistance ensures clean signal transmission, crucial when interfacing with sensitive Aviation Temperature Sensors or other precision instrumentation.
- Simplified System Integration: Designed for straightforward mounting on PCB Board Relay layouts or integration with wiring harnesses connecting to Aviation Magnetic Valves and actuators.
Installation & Integration Guidelines
- Configuration Selection: Determine required pole count (2P, 4P, or 6P) based on circuit design needs for switching complexity and isolation requirements.
- Application Verification: Confirm the switch's electrical ratings (28VDC, 1A resistive per pole, low-level signal specs) match all circuit requirements across all poles.
- Secure Mounting: Mount the switch firmly using appropriate hardware. Ensure no mechanical stress is transferred to the switch body or terminals, especially in high-vibration aerospace environments.
- Precision Wiring: For PCB mounting, follow recommended soldering profiles. For individual wire connections, use high-quality crimp terminals sized appropriately for the current load on each pole.
- Environmental Sealing Verification: Verify the integrity of the panel or enclosure seal around the switch to maintain overall environmental protection of the assembly.
- Pre-Operational Testing: Before final system integration, conduct comprehensive testing of all poles for correct actuation, measure switching times, and verify electrical continuity and isolation between poles.
- System Integration & Validation: Install into the final system and execute system-level functional, environmental, and isolation tests to ensure proper operation in the application context.
Application Scenarios & Value Proposition
Primary Application Areas
- Advanced Drone & UAV Flight Control: Multi-pole configurations ideal for complex flight control systems, gimbal control, multi-channel payload management, and redundant system switching in commercial and military drones.
- Aircraft Avionics Systems: Used in cockpit control panels, navigation system switching, communication equipment control, and multi-circuit lighting systems in both commercial and military aircraft.
- Rail Transportation Control Systems: Applied in door control modules with multiple safety circuits, passenger information system controls, and multi-function diagnostic panels in modern trains.
- Military & Defense Systems: Integrated into electronic warfare systems, multi-channel communication devices, missile launch control units, and armored vehicle electronic suites requiring complex switching.
- Industrial Automation & Test Equipment: Suitable for automated test systems, robotic control panels, and complex machinery requiring multiple synchronized or independent control circuits.
Value for B2B Procurement & Engineering Teams
- Reduces System Complexity & Cost: Multiple pole configurations in a single switch reduce component count, simplify wiring, lower assembly time, and decrease overall system cost and weight.
- Enhances System Reliability: Fewer components and connections reduce potential failure points, while the military-grade construction ensures long-term reliability in harsh environments.
- Provides Design Flexibility: Multiple configuration options allow engineers to optimize designs without switching to different product families, speeding development cycles.
- Simplifies Supply Chain Management: Sourcing from YM, an established manufacturer with expertise in Industrial Power Relays and Automotive Relays, ensures consistent quality, technical support, and supply stability across multiple configurations.
- Improves End-Product Performance: Fast switching speeds, excellent electrical characteristics, and reliable multi-pole operation contribute to the precision, efficiency, and functionality of the final product.
Manufacturing Process & Quality Assurance
Every KN3 Series switch undergoes a rigorous, controlled manufacturing process designed to ensure consistent performance across all configurations.
- Precision Component Fabrication: Contacts, poles, and structural components are manufactured with micron-level precision using advanced stamping and machining techniques.
- Configuration-Specific Assembly: Automated assembly lines configure switches according to order specifications (2P, 4P, or 6P) with precise alignment of all poles and contacts.
- Advanced Sealing Process: The hermetic sealing is applied in a controlled environment using technology refined through production of Aviation Oil Sealed Valves, ensuring consistent environmental protection.
- 100% Electrical Testing: Every unit undergoes automated testing of all poles for contact resistance, insulation resistance, dielectric strength, actuation timing, and pole-to-pole isolation.
- Rigorous Performance Sampling: Statistical samples from each production batch undergo extended lifecycle, thermal cycling, and vibration testing to validate performance across all configurations.
- Final Quality Audit & Packaging: Comprehensive visual, dimensional, and functional audit precedes packaging in ESD-protective, moisture-resistant materials with clear configuration identification.
Compliance & Customization Capabilities
Standards & Regulatory Alignment
The KN3 Series is designed and manufactured to meet the performance, reliability, and safety criteria commonly required by military (MIL-SPEC), aerospace (RTCA/DO-160 considerations), and relevant industrial standards. Our quality management system ensures full traceability and process control throughout manufacturing.
Customization Services
YM offers extensive customization options for the KN3 Series, leveraging our experience with custom New Energy Relay and PCB Signal Relay solutions:
- Pole Configuration Variations: Custom pole arrangements beyond standard 2P, 4P, and 6P configurations for specialized applications.
- Termination Options: Custom pin lengths, right-angle forms, solder tab configurations, or wire lead preparations.
- Actuator Customization: Options for different actuator styles, colors, markings, or actuation forces to match specific human-machine interface requirements.
- Electrical Modifications: Adjustments to coil voltage specifications, contact materials, or specialized plating for unique environmental or electrical requirements.
- Branding & Identification: Laser marking with custom part numbers, client logos, date codes, or compliance markings for easy identification and traceability.
- Application-Specific Validation: Capability to perform and document custom test protocols, including specific environmental, life cycle, or performance tests as required by the client.
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