KXC-1D9 WF 12Pins potentiometer

Product Overview

The KXC‑1D9 WF 12‑Pin Potentiometer is a high‑precision, multi‑turn potentiometer specifically designed for aviation band switch applications in military aircraft, drones, and ground control stations. This aviation band switch component integrates seamlessly with YM’s Aviation Rocker Switch with military grade and military rocker switches, providing accurate voltage division for frequency selection, gain adjustment, and position sensing in cockpit radios, radar tuning units, and autopilot interfaces. Featuring a rugged 12‑pin configuration, hermetic sealing (≤10⁻³ Pa·cm³/s), and wide temperature tolerance (-55°C to +125°C), the KXC‑1D9 WF delivers reliable performance under high vibration, altitude changes, and exposure to fuel vapors. Its conductive plastic resistive element ensures low contact resistance variation (CRV) and a mechanical life of 1×10⁶ cycles. As a core component in YM’s aviation control portfolio – which includes certified aircraft rocker switches, aviation encoding switch with military grade, gx Aviation Connector, static encoder aviation, and military grade rotary switches – the KXC‑1D9 WF is the ideal choice for demanding band switch and potentiometer functions in military aircraft systems.

Technical Specifications

Electrical Characteristics (Potentiometer Section)

• Resistance range: 100Ω to 100kΩ (standard), other values on request
• Tolerance: ±5% standard; ±2% (precision grade)
• Power rating: 2W at 70°C, derated to 0W at 125°C
• Maximum operating voltage: 500V DC
• Contact resistance variation (CRV): ≤1% of total resistance or 3Ω, whichever is greater
• Insulation resistance: >1000MΩ at 500V DC
• Dielectric strength: 1500Vrms between terminals and case

Mechanical & Environmental (Aviation Grade)

• Number of pins: 12 pins (dual‑gang, multi‑tap configuration)
• Mechanical rotation: 3600° (10 turns) continuous, with stops
• Mechanical life: 1×10⁶ cycles minimum
• Operating torque: 0.5 – 2.0 N·cm
• Sealing (leakage rate): ≤10⁻³ Pa·cm³/s (hermetic, glass‑to‑metal seal)
• Operating temperature range: -55°C to +125°C
• Vibration resistance: 20g RMS, 10-2000Hz per RTCA/DO‑160
• Shock: 50g, 11ms half‑sine
• Weight: ≤25g
• Terminal style: Gold‑plated solder lugs or PCB pins (12‑pin circular arrangement)

All parameters are validated at 25°C ambient. The KXC‑1D9 WF meets MIL‑PRF‑39023 requirements for precision potentiometers.

Product Images & Visuals

Above: KXC‑1D9 WF series 12‑pin potentiometer. Contact YM for dimensional drawing, pinout diagram, and environmental qualification reports.

Key Features & Advantages for Aviation Band Switch Applications

• High precision & low CRV: ±2% linearity and ≤1% CRV ensure accurate, repeatable position sensing – ideal for frequency band selection and fine tuning in military radios.
• 12‑pin multi‑tap configuration: Provides multiple independent outputs or taps, allowing direct interface with redundant avionics channels without external signal splitting – simplifies wiring and improves system reliability.
• Hermetic sealing (≤10⁻³ Pa·cm³/s): Glass‑to‑metal seal protects the resistive element and wiper from moisture, fuel vapors, and altitude pressure changes – ensures reliable operation in unpressurized aircraft bays and engine compartments.
• Wide temperature & vibration tolerance: -55°C to +125°C and 20g vibration meet RTCA/DO‑160 – suitable for fighter jets, helicopters, drones, and ground control stations.
• Long mechanical life (1×10⁶ cycles): Precision multi‑finger wiper and hardened resistive track deliver consistent performance over decades of service – reduces maintenance costs.
• Compatible with military band switches & encoders: Directly mounts behind YM’s aviation encoding switch with military grade and military grade rotary switches – saves panel space and ensures seamless integration.

YM’s engineering advantage: The KXC‑1D9 WF combines proven contact technology from our certified aircraft rocker switches and Military Grade Switch families with a precision conductive plastic resistive element. Compared to commercial potentiometers, it offers 10x longer life and true hermeticity. For complete cockpit integration, YM also provides gx aviation connector, static encoder aviation, and aviation encoding switch 28v – a one‑stop solution for aircraft control panel manufacturers.

How to Install & Use the 12‑Pin Aviation Potentiometer – Step by Step

1. Identify pinout: Refer to the datasheet for the 12‑pin assignment (typically includes two independent potentiometer gangs plus multiple tap points). Verify wiper, CW, CCW, and tap connections.
2. Panel mounting: Insert the potentiometer into a standard 12‑pin circular socket or solder directly to the PCB. Use the provided bushing and hex nut (torque 0.5‑1.0 N·m). Do not over‑tighten.
3. Wiring: Solder MIL‑spec wires (22‑24 AWG) to the gold‑plated pins. For dual‑gang use, connect each gang’s CW/CCW terminals to the reference voltage and ground, and the wiper to the signal input of the avionics unit.
4. Mechanical integration: If used behind a band switch knob or rocker actuator, align the D‑shaft or slotted shaft with the actuator. Ensure free rotation without binding.
5. Functional test: Apply reference voltage (typically 5V or 28V) to the CW/CCW terminals. Rotate the shaft and measure the wiper voltage – it should change linearly from 0% to 100% of the reference. Check for any noise or dropouts using an oscilloscope.
6. Maintenance: The potentiometer is maintenance‑free. Periodically check for loose connections or contamination on the shaft seal. Clean the exterior with isopropyl alcohol – do not immerse.

Pro tip for avionics integrators: For redundant sensing, use both gangs of the 12‑pin potentiometer with separate reference voltages – the independent wipers provide fail‑safe position feedback. YM can pre‑wire the potentiometer to a mating connector for plug‑and‑play installation.

Application Scenarios & Key Buyer Benefits

Typical Military & Aerospace Applications

• Aviation band switch panels: Frequency band selection (HF, VHF, UHF) combined with fine tuning – used in communication/navigation radios of military aircraft.
• Radar & electronic warfare (EW) control: Gain adjustment, frequency hopping band selection, and pulse width control – hermetic sealing prevents contamination.
• Cockpit instrument panels: Altimeter barometric pressure adjustment, heading reference set, and display brightness control – multi‑tap allows multiple outputs.
• Drone ground control stations (GCS): Gimbal tilt/pan control with detent for center position – lightweight and vibration‑resistant.
• Weapon system simulators & training devices: Replica controls requiring both rotary switch and potentiometer functions.

Direct Value to International Buyers (Defense OEMs, MROs, Panel Builders)

• Reduced panel space & weight: 12‑pin multi‑tap design replaces multiple single‑gang pots and external voltage dividers – lowers system cost.
• Enhanced reliability: Hermetic sealing and 1×10⁶ cycle life eliminate early failures – reduces field returns and unscheduled maintenance.
• Easy retrofitting: Standard 12‑pin footprint matches legacy potentiometers used in many aircraft (e.g., C‑130, F‑16, Black Hawk) – no panel rework.
• Supply chain consolidation: The KXC‑1D9 WF complements YM’s full line of aircraft rocker switches, aviation swing arm switch, and protect switch – one qualified source for all cockpit control components.

For new aircraft or drone programs, YM offers custom resistance values, shaft configurations, and detent options. Engineering samples available for qualification testing.

Certifications & Compliance

• MIL-PRF-39023 (potentiometers, precision, general specification).
• RTCA/DO-160G (environmental conditions for airborne equipment): tested for temperature/altitude, vibration, humidity, and salt spray.
• MIL-STD-810G (environmental – shock, vibration, temperature extremes).
• ISO 9001:2015 & AS9100D certified manufacturing (aerospace quality management).
• RoHS 2011/65/EU & REACH (EC 1907/2006) compliant – full material declaration.
• Hermeticity: 100% tested per MIL‑STD‑883, method 1014 – leak rate ≤10⁻³ Pa·cm³/s.

Each KXC‑1D9 WF potentiometer is 100% tested for resistance, tolerance, CRV, insulation resistance, dielectric strength, and mechanical rotation. Lot traceability per AS9100 is maintained. First Article Inspection (FAI) reports per AS9102 are provided upon request.

Customization Options

YM supports tailored KXC‑1D9 WF variants for volume military and aerospace orders. Customizations include:

• Resistance value & taper: 50Ω to 1MΩ, linear or logarithmic (audio) taper.
• Number of gangs & taps: Single‑gang, dual‑gang, or triple‑gang; up to 6 taps per gang.
• Shaft configuration: Round shaft, D‑shaft, slotted, or custom length; with or without detents.
• Terminal style: Solder lugs, PCB pins, or flying leads with MIL‑spec connector (e.g., GX aviation connector).
• Sealing level: Hermetic (standard) or panel‑sealed (IP67 with silicone boot).
• Marking: Laser engraving of customer part number, resistance value, and date code.

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 potentiometer production line follows a zero‑defect, fully traceable process designed to meet the most stringent requirements for aerospace and defense programs.

• Raw material control: 100% verification of resistive element substrates, precious metal wipers, glass preforms, and metal housings – all from approved aerospace suppliers with COC and batch traceability.
• Resistive element deposition & trimming: Precision screen printing and laser trimming to achieve ±2% tolerance.
• Wiper assembly in Class 100 cleanroom: Multi‑finger wiper alignment under microscope; contact force testing to ensure low CRV.
• Hermetic sealing & leak detection: Glass‑to‑metal sealing of pins; 100% helium mass spectrometry leak test (sensitivity 10⁻⁹ Pa·cm³/s).
• Environmental screening (100% for high‑rel lots): Thermal cycling (-55°C to +125°C, 10 cycles), vibration (20g RMS), and mechanical life test (1×10⁶ cycles).
• Final electrical test: Automated test system (ATS) measures resistance, CRV, insulation resistance, and dielectric strength.
• Destructive Physical Analysis (DPA): One unit per lot cross‑sectioned per MIL‑STD‑1580 for internal workmanship.

With decades of experience in aviation switch with military grade and aviation encoder manufacturing, YM has supplied potentiometers to major defense contractors and cockpit integrators. The KXC‑1D9 WF is built to exceed the reliability expectations of next‑generation aircraft band switch systems.