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Five small blue rectangular carbon film potentiometers with metal shafts and five terminals each

Unique-Bargains

Unique-Bargains WH148 50K Ohm Carbon Film Potentiometer 5pcs

SKU CH-3HRQ-8EHYZ MPN WH148

A pack of five 50K ohm carbon-film potentiometers with single-turn linear taper, 5 terminals and 6 mm knurled shafts for knob mounting

  • FeaturesHorizontal Multiturn Trimmer Potentiometers; Potentiometer R
  • 50K ohm resistance with ±10% tolerance for precise circuit control
  • Single-turn carbon film design gives smooth linear adjustment
  • Five-terminal layout fits standard PCB footprints
  • Knurled 6 mm split shaft accepts push-on knobs without tools
  • Pack of five units supports prototyping and small-batch builds

Passive Component for DIY Electronics

This pack contains five WH148 carbon film potentiometers rated at 50K ohm with a +/-10% tolerance. Each unit is a single-turn rotary variable resistor with five terminals. They are designed for horizontal mounting on breadboards or PCBs. Knobs are not included with the components.

Linear Response in Sustained Adjustment

The single linear taper provides a proportional resistance change throughout the full rotation range. This behaviour remains consistent during extended operation for dimming, speed regulation or temperature control tasks. The carbon film element maintains stable contact resistance across repeated adjustments. Horizontal multiturn trimmer design supports precise calibration in fixed installations.

Thermal and Power Characteristics

Carbon film construction handles typical low-power signal-level currents found in audio, governor and microwave oven circuits. The 30mm total height and 17mm x 9mm base dimensions allow heat dissipation into the surrounding board area. Metal terminals and a 6.7mm screw thread diameter ensure secure electrical and mechanical connection. No active cooling is required for intended applications.

Highlights

  • 50K ohm resistance with ±10% tolerance for precise circuit control
  • Single-turn carbon film design gives smooth linear adjustment
  • Five-terminal layout fits standard PCB footprints
  • Knurled 6 mm split shaft accepts push-on knobs without tools
  • Pack of five units supports prototyping and small-batch builds

Specifications

BrandUnique Bargains
FeaturesHorizontal Multiturn Trimmer Potentiometers; Potentiometer Resistor Assortment;Vertical High Precision Variable Resistors;Breadboard Trim Resister ceramic;Assortment Kit for DIY or PCB

Questions about this item

Does the 50K ohm carbon film element generate noticeable heat when used continuously in a dimming circuit?

As a passive carbon film resistor it dissipates only the power the circuit applies; no active cooling is required.

What shaft diameter must my existing knob match for the 6 mm split shaft on the WH148?

The knurled shaft is 6 mm in diameter with a split design for push-on knobs.

Will the 17 mm x 9 mm base and 30 mm total height fit the same PCB footprint as my older 50K potentiometers?

The base measures 17 mm by 9 mm and total height is 30 mm; compare those dimensions to your current layout.

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