MJK2-2A Military Aviation Switch – Drone Compatible Rocker Switch for UAV & Flight Control Systems
Product Overview
The MJK2-2A Military Aviation Switch is a rugged, lightweight rocker switch specifically engineered for drone (UAV) and unmanned aerial vehicle applications. This military grade rocker switch provides reliable on/off control for flight controllers, payload power, camera systems, and telemetry modules. Rated for 28V DC / 10A resistive load and capable of switching low-level signals down to 10μA/10mV, the MJK2-2A delivers low contact resistance (≤50mΩ), high insulation (>500MΩ), and excellent dielectric strength (500Vrms). Its sealed construction (IP67 front panel) protects against moisture, dust, and vibration – critical for UAV operations in harsh environments. As a core product in YM’s aviation switch portfolio – which includes Aircraft Rocker Switches, Aviation Swing Arm Switch, Micro switch, Aviation Button Switch, and Aviation Encoding Switch with Military Grade – the MJK2-2A delivers uncompromised performance for drone ground control stations, flight termination systems, and gimbal controls.
Technical Specifications
Electrical Ratings
- Contact configuration: SPST, SPDT, or DPST (2-4 pins) – specify when ordering
- Maximum voltage: 28V DC / 115V AC 400Hz
- Current rating (resistive): 10A at 28V DC; 5A at 115V AC 400Hz
- Low level switching capability: 10μA – 50μA, 10mV – 50mV (gold-plated contacts available)
- Initial contact resistance: ≤50mΩ
- Insulation resistance (normal atmosphere): >500MΩ at 500V DC; after life test >50MΩ
- Dielectric strength (normal atmosphere): 500Vrms, 50Hz between terminals and case; under low pressure (drone altitude): 250Vrms
Mechanical & Environmental
- Mechanical life: 50,000 cycles minimum
- Electrical life (rated load): 25,000 cycles minimum
- Actuator force: 4 – 7 N (rocker travel 25°)
- Sealing (tightness): IP67 front panel – leakage rate ≤10⁻³ Pa·cm³/s (silicone gasket)
- Operating temperature: -40°C to +85°C (extended -55°C optional)
- Vibration resistance: 10g RMS, 10-2000Hz per MIL-STD-810
- Shock: 30g, 11ms half-sine
- Weight: <3g – ultra-light for drone applications
- Terminal style: 0.250” quick-connect or solder lug
- Actuator options: Non-illuminated, LED illuminated (red, green, amber, white), or NVIS compatible
Materials & Finishes
- Housing: Glass-filled nylon (UL94 V-0)
- Actuator: Polycarbonate with hard coat
- Contacts: Silver-cadmium oxide (standard) or gold-plated (low-level)
- Terminals: Brass with tin or gold plating
- Wire coil specifications (for illuminated versions): 28V DC line coil voltage, 25°C reference
All parameters are validated at 25°C ambient. The MJK2-2A is designed and tested to meet MIL-PRF-8805 and RTCA/DO-160G requirements for airborne equipment.
Product Images & Visuals
Above: MJK2-2A series rocker switch (shown with LED illumination and panel seal). Contact YM for dimensional drawings, actuator color options, and environmental qualification reports.
Key Features & Advantages for Drone & UAV Applications
- Ultra-lightweight (<3g): Minimal impact on drone payload capacity – ideal for small to medium UAVs and hand-launched systems.
- Military-grade durability: Designed to MIL-PRF-8805, the MJK2-2A withstands high vibration (10g RMS), shock (30g), and temperature extremes (-40°C to +85°C) – reliable for outdoor drone operations.
- Positive tactile feedback: Rocker mechanism provides distinct actuation feel and audible click, reducing pilot error during high-stress missions.
- Sealed construction (IP67): Front panel seal and tightness ≤10⁻³ Pa·cm³/s prevent ingress of moisture, dust, and sand – critical for desert or maritime drone operations.
- Low contact resistance & high insulation: ≤50mΩ initial resistance and >500MΩ insulation ensure reliable switching of flight controllers and sensor power.
- Optional LED illumination: Red, green, amber, or white LED for night operations and NVIS (Night Vision Imaging System) compatibility – enhances situational awareness.
YM’s engineering advantage: The MJK2-2A shares proven sealing and contact technology with our military rocker switches and certified aircraft rocker switches families, adapted for lightweight drone platforms. For complete drone control systems, YM also offers Aviation Rocker Switch with military grade, military grade rotary switches, aviation encoding switch with military grade, and gx Aviation Connector – a one-stop solution for UAV ground control stations and airborne flight termination systems.
How to Install & Use the MJK2-2A Drone Rocker Switch – Step by Step
- Select the correct configuration: Determine circuit type (SPST, SPDT, etc.) and illumination requirement based on your drone’s flight controller and power distribution board.
- Panel cutout preparation: Standard cutout size: 19mm x 27mm (single rocker). Use a CNC router or panel punch for precise hole. Deburr edges.
- Mounting: Insert the switch from the front of the drone’s ground control station or payload bay. Secure using snap-in clips (standard) – no additional hardware needed.
- Wiring: Connect wires to the terminals (0.250” quick-connect or solder lugs). For SPST, connect one terminal to the battery positive (28V DC) and the other to the load (e.g., camera, flight controller power). For illuminated switches, connect the LED leads (observe polarity). Use lightweight, flexible silicone wire (22 AWG).
- Sealing (optional): If using a silicone boot seal, stretch it over the actuator before panel insertion. Ensure the boot flange seats flush against the panel.
- Functional test: Apply power and rock the switch to ON position. Verify continuity across terminals using a multimeter. For illuminated versions, check LED brightness.
- Maintenance: Periodically inspect for cracked housing or loose terminals. Clean with a soft brush and isopropyl alcohol – do not immerse.
Pro tip for drone integrators: For flight termination systems (FTS), use a SPST configuration with a protective cover to prevent accidental activation. YM can provide custom legend engraving on the rocker cap (e.g., “ARM”, “FTS”, “CAMERA”).
Application Scenarios & Key Buyer Benefits
Typical Drone & UAV Uses
- Flight control power switching: Master power for flight controller, GPS, and telemetry modules – lightweight and reliable.
- Payload control: On/off switching for cameras, LiDAR, gimbals, and cargo release mechanisms.
- Flight termination systems (FTS): Manual override switch for emergency motor cut-off – meets FAA and military UAV requirements.
- Ground control stations (GCS): Panel-mount switches for video feed, antenna selection, and battery monitoring.
- Drone battery management: Isolating battery banks and pre-charge circuits – sealed contacts prevent arcing.
Direct Value to International Buyers (UAV Manufacturers, Drone Service Providers, Defense Contractors)
- Enhanced mission reliability: Sealed construction and low contact resistance prevent switch failures in dusty, humid, or high-vibration environments – reduces in-flight failures.
- Reduced weight & size: Ultra-lightweight (<3g) and compact footprint allow integration into small drones without sacrificing payload capacity.
- Easy retrofitting: Standard panel cutout and terminal spacing allow direct replacement of commercial switches with military-grade reliability.
- Supply chain consolidation: The MJK2-2A complements YM’s full line of Aircraft Rocker Switches, Aviation Swing Arm Switch, Press Switch, and Protect Switch – one qualified source for all drone control needs.
For next-generation UAV programs, YM offers customization of actuator colors, legend engraving, and wire harness assembly. Engineering samples available for qualification testing.
Certifications & Compliance
- MIL-PRF-8805 (switches, sensitive, snap-action, general specification).
- MIL-STD-810G (environmental – temperature, humidity, vibration, shock, salt fog, altitude).
- RTCA/DO-160G (airborne equipment – Category A2, S, and R).
- AS9100D (aerospace quality management).
- RoHS & REACH compliant – full material declaration available.
Each MJK2-2A switch is 100% tested for contact resistance, dielectric strength, insulation resistance, and mechanical operation. Lot traceability per AS9100 is maintained. First Article Inspection (FAI) reports per AS9102 are provided upon request.
Customization Options
YM supports tailored MJK2-2A variants for volume UAV OEM orders. Customizations include:
- Circuit & action: SPST, SPDT, DPST, DPDT; momentary or maintained.
- Illumination: Non-illuminated, LED (red, green, amber, white, blue), incandescent (5V, 14V, 28V), or NVIS compatible.
- Actuator color & marking: Black, white, gray, red, yellow; laser engraved text or symbols (e.g., “ON-OFF”, “ARM”, “CAM”).
- Sealing level: IP67 front panel (standard), IP68 (with boot), or unsealed (for indoor drones).
- Terminal style: 0.250” quick-connect (standard), solder lug, or wire leads (pre-stripped).
- Contact material: Silver-cadmium oxide (standard, 10A), gold-plated (low-level, 1A), or palladium (dry circuit).
Our engineering team provides free feasibility analysis and 3D models for integration. Minimum order quantities for custom options apply – contact YM with your specification sheet.
Production Process & Quality Assurance (AS9100D Certified)
YM’s aviation switch production line follows a zero-defect, fully traceable process designed to meet the stringent demands of drone and UAV manufacturers.
- Raw material control: 100% certification of plastic resins, metal stampings, contacts, and wire – traceable to mill test reports and batch certificates.
- Precision molding & stamping: Automated injection molding (UL94 V-0) and high-speed contact stamping with in-process vision inspection.
- Contact riveting & assembly: Precision riveting of silver alloy contacts; dynamic force testing to ensure ≤50mΩ resistance.
- Seal application: Silicone rubber gasket installation and panel seal leak testing per IP67 (helium mass spectrometry, leakage rate ≤10⁻³ Pa·cm³/s).
- 100% functional test: Automated test system measures contact resistance, insulation resistance (500V DC), dielectric strength (500Vrms), and actuator force.
- Environmental sample testing: Each lot undergoes thermal cycling (-40°C to +85°C, 20 cycles), vibration (10g RMS), and life cycle test (25,000 cycles at rated load).
- Final documentation: Dimensional report, electrical test record, C of C, and FAI (if required) provided with each shipment.
With decades of experience in Military Grade Switch and aviation encoding switch manufacturing, YM has supplied switches to leading drone manufacturers and defense contractors. The MJK2-2A is built to exceed the reliability expectations of modern UAV flight control systems.
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