50K Ohm Linear Rotary Potentiometer B50K 3-Pin Variable Resistor
Smooth 50kΩ linear rotary pot with 3‑pin precision for easy voltage control.
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Product Overview
The B50K 3‑Pin Linear Rotary Potentiometer is a precision variable resistor that provides a smooth, 0 – 50 kΩ resistance range in a compact, panel‑mount package. Designed for educational labs, hobby projects, and prototype circuits, this potentiometer features a 300 ° continuous rotation, a robust carbon‑film track, and a sturdy metal shaft that can be easily coupled to knobs or levers. Its three terminals (high, low, and wiper) make it ideal for adjusting voltage dividers, biasing transistors, tuning audio tone controls, and calibrating sensor circuits.
What Students Will Learn
Working with the B50K potentiometer gives students hands‑on experience with fundamental analog concepts such as voltage division, load regulation, and the relationship between resistance and current. By wiring the wiper to an oscilloscope or multimeter, learners can visualize how rotating the shaft continuously varies the output voltage, reinforcing the theory behind potentiometric sensors, feedback loops, and user‑controlled interfaces.
Key Features
- Linear 0 – 50 kΩ tuning range, 300 ° rotation
- 3‑pin (high, low, wiper) configuration for easy integration into breadboards and PCBs
- Carbon‑film resistive element with ±20 % tolerance and ±15 % temperature coefficient
- Metal alloy shaft and rugged housing for long‑term durability
- Low operating current (≤ 5 mA) and 0.5 W power rating, suitable for most low‑power educational kits
Why It’s Great for Your Lab
The B50K potentiometer combines reliability, affordability, and a tactile feel that makes experimentation intuitive and engaging. Its precise linear response helps students obtain repeatable results while exploring real‑world applications—from simple LED dimmers to more advanced motor‑speed controllers. Whether you’re building a physics demonstration, an electronics course kit, or a DIY hobby project, this variable resistor delivers the performance and flexibility needed to turn theory into practice.