KN6A-202DM Military Aviation Switch -

Precision Switching for Demanding Aerospace Applications

YM's KA6A-202DM Military Aviation Switch is engineered to deliver uncompromising reliability and performance in the most challenging aerospace, defense, and industrial environments. Designed specifically for drone systems, aircraft engines, train controls, and aviation instrumentation, this switch embodies the pinnacle of precision engineering. Built with technologies derived from our extensive Military Metal Relay and Metal Sealing Relay expertise, the KN6A-202DM ensures consistent operation under extreme pressure, temperature, and vibration conditions.

As a critical component within our comprehensive Military Aviation Connector and control systems portfolio, it provides a dependable interface for mission-critical circuits where failure is not an option.

Product Visual Reference

Front view of KA6A-202DM Military Aviation Switch showing actuator and terminal layout

Technical Specifications & Performance Data

Electrical Performance Parameters

Coil Power Consumption: Highly efficient, operating within a range of 0.3W to 0.43W, minimizing overall system energy draw.
Contact Load & Operational Life:
- Resistive Load Rating: 1A at 28V DC, tested for a minimum of 1x10^6 cycles.
- Low-Level Signal Load: Rated for (10~50)μA at (10~50)mV, also qualified for 1x10^6 cycles, perfect for sensitive control logic.
Contact Resistance: Exceptionally low initial resistance of ≤50mΩ. Post-endurance testing, resistance is guaranteed to remain ≤200mΩ, ensuring long-term electrical integrity.
Switching Speed: Features ultra-fast response times with an action time of ≤4ms and a release time of ≤4ms, enabling high-speed circuit control.
Dielectric Strength (Withstand Voltage):
- At Standard Atmospheric Pressure: 500V RMS, 50Hz.
- Under Low-Pressure Conditions (Simulating High Altitude): 250V RMS, 50Hz.
Insulation Resistance: Exceeds 500MΩ initially and maintains >50MΩ after rigorous high-level lifespan testing.

Physical & Environmental Specifications

Weight: Engineered for weight-sensitive applications at less than 3 grams.
Sealing Integrity: Hermetically sealed construction with a maximum allowable leakage rate of ≤10⁻³ Pa·cm³/s. This level of Aviation Oil Sealed Valve-grade protection guards against moisture, dust, fuel, and other contaminants.
Operating Temperature Reference: Performance specifications are characterized at a baseline of 25°C, with design validation across extended military temperature ranges.
Incentive Pulse Width: Compatible with control pulse widths from 10ms to 50ms.

Core Features & Competitive Advantages

The KA6A-202DM is distinguished by features that address the precise needs of aerospace and defense integrators.

Military-Grade Robustness: Incorporates design and material principles from our Military Electronic Horn and Military Pressure Sensor lines, ensuring resilience against shock, vibration, and G-forces.
Advanced Hermetic Sealing: Utilizes a proprietary metal-to-ceramic or metal-to-glass sealing process, a technology cornerstone of our Metal Sealing Relay family, guaranteeing long-term performance in volatile atmospheres.
High Reliability Contact System: Precious metal contacts and optimized actuation mechanics provide stable, low-resistance connections over the entire product lifecycle, reducing system noise and voltage drop.
Compact & Lightweight Design: Its sub-3-gram weight and compact footprint are critical for UAV/drone applications and anywhere weight savings are paramount.
Broad Signal Compatibility: Effectively handles both standard power switching (1A, 28VDC) and sensitive low-level signals, offering design flexibility.
Inter-System Compatibility: Designed to interface seamlessly with other aviation-grade components such as Aviation Temperature Sensors and Aviation Magnetic Valves, simplifying system integration.

Recommended Integration Steps

Requirements Verification: Confirm your application's voltage (up to 28V DC), current (≤1A resistive), and load type match the KN6A-202DM's specifications.
Mechanical Mounting: Securely mount the switch using the provided or specified hardware. Ensure mounting does not induce stress on the switch body or solder terminals, especially in high-vibration environments.
Electrical Connection: For connections to a PCB Board Relay or main controller, use appropriate soldering techniques and ensure PCB trace width can handle the rated current. Use high-reliability crimps for wire-to-terminal connections.
Environmental Sealing Verification: While the switch itself is hermetically sealed, verify the integrity of the panel seal or grommet where the switch is installed to complete the environmental protection.
Pre-Operational Testing: Before final system closure, perform functional tests to verify correct actuation, measure actual switching time (target ≤4ms), and check for any signal abnormalities.
System-Level Validation: Integrate into the final assembly (e.g., engine control unit, drone flight controller) and execute the prescribed system-level functional and environmental test protocols.

Application Scenarios & Delivered Value

Primary Application Fields

Unmanned Aerial Vehicles (UAVs/Drones): Actuating payload releases, controlling camera gimbals, managing communication module power, and auxiliary system switching in military and industrial drones.
Manned & Unmanned Aircraft: Use in non-essential flight control circuits, cockpit instrument panel controls, lighting systems, and auxiliary power unit management.
Railway & Mass Transit: Reliable switching within door control systems, cabin lighting controls, and diagnostic circuit panels in trains and railcars.
Ground Support & Military Equipment: Integration into communication shelters, missile launch support equipment, and armored vehicle electronic systems.
High-End Industrial Automation: Suitable for precision robotic arms, medical diagnostic equipment, and test & measurement apparatus where reliability is critical.

Tangible Benefits for Procurement & Engineering Teams

Lowers Lifecycle Costs: Exceptional durability and one-million-cycle minimum life reduce maintenance intervals, spare part inventory, and total cost of ownership.
Mitigates System Risk: Hermetic sealing and military-grade construction decrease the probability of field failures, supporting higher overall system reliability and safety certifications.
Streamlines Procurement: Sourcing from YM, a manufacturer with parallel expertise in Automotive Relays and Industrial Power Relays, ensures supply chain stability and consistent quality.
Enhances End-Product Performance: Fast switching speed and low contact resistance contribute to system efficiency, signal fidelity, and responsive control.

Manufacturing Process & Quality Assurance

Every KN6A-202DM switch is produced under a rigorous, multi-stage process designed for zero-defect outcomes.

Precision Component Fabrication: Contacts and structural parts are formed using high-precision stamping and machining to ensure dimensional and material consistency.
Critical Sealing Process: The hermetic seal is applied in a climate-controlled clean environment using specialized equipment, a process refined through years of producing Aviation Oil Sealed Valves.
Automated Assembly & Welding: Robotic systems handle precise assembly and welding of terminals to ensure repeatable, high-strength joints.
100% In-Line Electrical Testing: Each unit undergoes automated testing for contact resistance, insulation resistance, dielectric strength, and functional actuation.
Aggressive Lifecycle Sampling: Statistical batches from every production run are subjected to accelerated lifecycle testing under load to validate durability claims.
Final Audit & Secure Packaging: A final quality audit precedes packaging in static-dissipative, moisture-protected materials ready for shipment.

Compliance & Customization Capabilities

Design & Performance Standards

The KN6A-202DM is designed and tested to meet or exceed the performance requirements outlined in relevant military, aerospace, and industrial component standards. Our manufacturing processes are aligned with the rigorous quality paradigms required by these sectors.

Flexible Customization Services

YM offers extensive customization to meet unique application requirements, leveraging our experience in custom New Energy Relay and PCB Signal Relay solutions.

Terminal Variations: Custom lead forms, pin lengths, or alternative termination styles (e.g., quick-connect).
Actuator Customization: Options for different button shapes, colors, rocker styles, or lever lengths to match human-machine interface (HMI) designs.
Electrical Tuning: Adjustments to coil voltage parameters or specialized contact materials for unique load profiles.
Branding & Identification: Application of custom part numbers, client logos, or specific color codes for simplified inventory management.
Application-Specific Testing: Provision of tailored test reports or performance data based on client-defined test profiles.