Potentiometer
Rotary · 10 kΩ linear
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: B10K rotary, 16 mm
Ratings and limits
| Power | 0.25–0.5 W across the track |
|---|---|
| Wiper current | ≈ 10 mA |
| Taper | B = linear, A = audio (log) |
How to use it
Variable voltage divider (volume, brightness set-point, sensor threshold) or, with the wiper tied to one end, a variable resistor.
Lessons and builds that use it
- Wheatstone bridge
- Thévenin equivalent
- Norton equivalent
- Maximum power transfer
- LM317 adjustable regulator
- Emitter follower (buffer)
- PWM actuator: hobby servo
- PWM actuator: DC motor through a MOSFET
- Comparator with a light sensor
- Analog in, PWM out
- I²C scanner
- 16×2 I²C LCD
- UJT relaxation oscillator
- Baxandall tone control