WH148 Linear Potentiometer 10K / 100K – 3-Pin Rotary Pot with 15mm Shaft, Nut & Washer

A reliable WH148 linear potentiometer designed for precise analog control in electronics and DIY projects. Available in 10KΩ and 100KΩ variants, this rotary potentiometer is ideal for adjusting voltage levels, tuning signals, and controlling parameters in microcontroller-based systems.

Featuring a standard 15mm shaft and 3-pin configuration, it is fully compatible with Arduino, ESP32, and other embedded platforms.

Available variants

• 10KΩ (B10K) – Ideal for general-purpose analog input and control
• 100KΩ (B100K) – Suitable for low-current signal control and higher resistance circuits

Key features

• Linear taper (B-type) for smooth and predictable adjustment
• 3-pin design (VCC, GND, Signal)
• 15mm shaft length for easy knob attachment
• Includes nut and washer for secure mounting
• Compact and durable construction
• Suitable for breadboards and panel mounting

Pinout

• Pin 1 – One end of resistive track (VCC)
• Pin 2 (Middle) – Wiper (variable output signal)
• Pin 3 – Other end of resistive track (GND)

Specifications

Common applications

• Analog input control for Arduino and ESP32
• Volume and brightness adjustment
• Motor speed control (via PWM circuits)
• Signal tuning and calibration
• DIY electronics and prototyping
• User input controls (knobs, dials)

Tip: Use the middle pin (wiper) to read a variable voltage when connected between VCC and GND — perfect for analog inputs on microcontrollers.