Aviation Switch Potentiometer WS-47K

Product Overview

The WS-47K is a specialized Aviation Switch Potentiometer featuring a 47KΩ resistance value, engineered for precision variable control applications in drone systems, aircraft engines, train controls, and Aviation Electronics. This dual-function component combines reliable switching with precise 47KΩ potentiometer adjustment, enabling sophisticated control interfaces where space optimization and precise parameter adjustment are critical. As a precision component in YM's comprehensive aviation solutions portfolio—complementing products like Military Aviation Encoding Switches and Aviation Button Switches—the WS-47K delivers exceptional control accuracy for demanding aerospace applications.

 

Technical Specifications

• Model Number: WS-47K
• Component Type: Aviation switch potentiometer with 47KΩ resistance
• Primary Functions: Switching + 47KΩ variable resistance control
• Resistance Value: 47,000Ω standard (47KΩ)
• Resistance Tolerance: Standard ±10%, available in ±5% and ±1% precision grades
• Switching Rating: 1A at 28V DC resistive load
• Power Rating: Typically 0.5W for potentiometer function
• Coil Power Consumption: (0.3 - 0.43) Watts for switching mechanism
• Electrical Life: Minimum 100,000 switching operations
• Potentiometer Rotation: Standard 300° mechanical rotation
• Taper Characteristic: Linear taper standard, logarithmic available
• Contact Resistance: Initial ≤50mΩ; After durability testing ≤200mΩ
• Switching Speed: Action time ≤4ms; Release time ≤4ms
• Dielectric Strength: 500V RMS @ 50Hz (standard); 250V RMS @ 50Hz (low pressure)
• Insulation Resistance: >500 MΩ initially; >50 MΩ after environmental testing
• Weight: Less than 3 grams (compact precision design)
• Environmental Sealing: Maximum leakage rate ≤ 1.0 x 10⁻³ Pa·cm³/s
• Operating Temperature: Performance validated for aviation conditions, compatible with Aviation Temperature Sensor ranges
• Shaft Type: Standard 6mm round shaft, various options available

Product Features & Competitive Advantages

1. Precision 47KΩ Resistance Element: High-quality 47KΩ potentiometer provides accurate resistance control ideal for signal conditioning, voltage division, and sensitivity adjustment applications commonly used with PCB Signal Relays in control circuits.
2. Dual-Function Space Optimization: Combines switching and 47KΩ adjustment in one compact component, reducing panel space requirements by approximately 40-50% compared to separate installations.
3. High Linearity and Low Noise: Precision 47KΩ resistance track provides excellent linearity with minimal contact noise, ensuring stable control signals in sensitive applications.
4. Smooth Rotation with Positive Detents: Engineered for smooth 47KΩ adjustment with optional positive detent positions for commonly used settings.
5. Vibration-Resistant Wiper Contact: Special wiper design maintains stable contact with 47KΩ resistance element under aviation vibration conditions.
6. Temperature-Stable Resistance: 47KΩ element maintains consistent resistance characteristics across operational temperature ranges.

Installation and Circuit Integration Procedure

1. Circuit Design Verification: Confirm that 47KΩ resistance value is appropriate for your voltage division, signal conditioning, or control application requirements.
2. Panel Preparation: Create appropriate mounting hole ensuring proper clearance for potentiometer shaft and knob rotation.
3. Component Mounting: Secure WS-47K in panel using provided hardware, ensuring free shaft rotation and proper alignment.
4. Three-Terminal Potentiometer Wiring: Connect 47KΩ potentiometer terminals (typically: input, output, ground) according to circuit requirements for voltage division or variable resistance applications.
5. Switching Circuit Connection: Connect switching terminals to appropriate control circuit, ensuring proper current ratings are observed.
6. Grounding and Shielding: Implement proper grounding for 47KΩ signal circuits to minimize noise and interference.
7. Sealing Verification: Confirm environmental seals are properly engaged to protect both functional elements.
8. Calibration and Testing: Test switching function, verify 47KΩ resistance range, and check for smooth rotation and linearity before system integration with components like Aviation Magnetic Valves or control interfaces.

Application Scenarios for 47KΩ Potentiometer

The WS-47K Aviation Switch Potentiometer is specifically engineered for applications requiring 47KΩ resistance control combined with switching functionality:

• Aircraft Avionics Sensitivity Controls: Combined power switching and 47KΩ sensitivity adjustment for communication equipment, radar systems, and navigation instruments.
• UAV Camera and Sensor Controls: Power control with 47KΩ zoom, focus, or sensitivity adjustment for aerial cameras, LIDAR, and sensor packages.
• Train Control System Interfaces: Combined power and 47KΩ parameter adjustment for lighting dimming, climate control, and display systems in rail applications.
• Military Equipment Adjustment Controls: Tactical equipment interfaces combining power with 47KΩ gain, sensitivity, or threshold adjustments.
• Industrial Process Controls: Machine interfaces combining power switching with 47KΩ speed, temperature, or pressure setting adjustments.
• Test and Measurement Equipment: Instrument controls combining power with 47KΩ range selection, calibration, or sensitivity adjustments.
• Audio System Controls: Combined power and 47KΩ volume, tone, or balance controls for aviation entertainment and intercom systems.
• Medical Equipment Interfaces: Equipment controls combining power with 47KΩ treatment parameter or monitoring adjustment.

Value Proposition for Precision Control Applications

• Optimized Component Selection: Specific 47KΩ value addresses common resistance requirements in control circuits, eliminating need for additional series/parallel resistors.
• Space Efficiency: Dual-function design maximizes control capability within minimal panel space—critical in aerospace cockpit and control panel designs.
• Cost-Effective Integration: Reduces total component count, wiring complexity, and installation time compared to separate switching and 47KΩ potentiometer solutions.
• Enhanced User Interface: Provides intuitive control combining discrete power functions with continuous 47KΩ adjustment in familiar, space-efficient format.
• Improved Signal Integrity: High-quality 47KΩ element with low noise characteristics ensures clean control signals in sensitive applications.
• Design Consistency: Enables standardized control interfaces across different systems using common 47KΩ adjustment ranges.
• Reliability Enhancement: Fewer components and connections reduce potential failure points and simplify maintenance procedures.

Customization & OEM/ODM Services

YM offers extensive customization options for the WS series switch potentiometers:

• Alternative resistance values (10KΩ, 50KΩ, 100KΩ, etc.) while maintaining same form factor
• Enhanced tolerance grades (±5%, ±1%, ±0.5%) for precision applications
• Custom switching configurations (SPST, SPDT, multi-position) to match control requirements
• Special shaft types, lengths, and knob configurations for specific panel designs
• Alternative taper characteristics (logarithmic, reverse logarithmic) for audio or specialized controls
• Enhanced environmental sealing for specific operating conditions and exposure profiles
• Custom electrical ratings for switching function based on application requirements
• Special markings, detent configurations, and end-stop options for user interface optimization

Our demonstrated OEM and ODM expertise in precision combination components, proven across our Automotive Relay and control product lines, ensures we can develop tailored switch potentiometer solutions that precisely match your 47KΩ (or alternative) resistance requirements and application specifications.

Production Process & Precision Quality Assurance

1. Precision Resistance Element Manufacturing: High-accuracy production of 47KΩ resistance tracks with controlled tolerance characteristics.
2. Dual-Function Component Integration: Precision assembly combining switching mechanism with 47KΩ potentiometer element.
3. Resistance Accuracy Verification: 100% testing of 47KΩ resistance value, tolerance, and linearity characteristics.
4. Dual-Function Performance Testing: Comprehensive testing includes switching performance (contact resistance, timing) and 47KΩ potentiometer performance (resistance range, linearity, noise, rotation smoothness).
5. Environmental Sealing Validation: Rigorous testing of sealing integrity to protect both switching contacts and 47KΩ resistance element.
6. Vibration Performance Testing: Validation of both switching reliability and 47KΩ wiper contact stability under aviation vibration conditions.
7. Temperature Stability Verification: Testing of 47KΩ resistance characteristics across operational temperature range.
8. Final Quality Assurance: Comprehensive inspection including dimensional verification, mechanical function testing, 47KΩ resistance accuracy validation, switching performance verification, and complete manufacturing traceability.