Product Description:
The WH148 20K Potentiometer is a high-quality single-turn rotary potentiometer with an integrated ON/OFF switch, ideal for volume control, brightness adjustment, and signal tuning in audio equipment or Arduino projects.
With a 3-pin interface for easy connection and a 15mm shaft, it offers smooth rotation and precise resistance control. The built-in switch activates or deactivates the circuit when the knob is pressed or rotated fully, making it ideal for DIY audio amplifiers, power supplies, and embedded control panels.
⚙️ Features
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Adjustable 20KΩ resistance for precise control
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Built-in ON/OFF switch for convenient power toggling
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15mm shaft length suitable for standard knobs
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3-pin design for easy integration with Arduino and audio circuits
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Durable carbon film element for long lifespan
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Smooth and stable rotational performance
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Compatible with breadboards, PCBs, and DIY control panels
📐 Specifications
| Parameter | Description |
|---|---|
| Model | WH148-20K |
| Resistance Value | 20KΩ |
| Tolerance | ±20% |
| Number of Pins | 3 |
| Switch Type | Push or rotary ON/OFF switch |
| Shaft Length | 15 mm |
| Shaft Type | Round knurled |
| Mounting Hole | 7 mm |
| Body Diameter | 17 mm |
| Operating Voltage | ≤50V DC |
| Power Rating | 0.1 W – 0.2 W |
| Rotation Angle | 300° |
| Material | Carbon film, metal shaft |
⚡ Applications
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Audio amplifier volume control
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Power supply adjustment knob
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Brightness or speed control
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Arduino sensor input
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DIY electronics and robotics projects
📦 Package Includes
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1 × WH148 20K Potentiometer with Switch (15mm Shaft)
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