Pick a WH148 potentiometer by the resistance your circuit expects. Use 10K for most Arduino voltage dividers and control panels, 50K for guitar and audio jobs, and 100K for high impedance inputs. All three come as 10-packs for $9.29. Pick the X9C104 digital module at $9.49 when code must set the resistance.
Quick facts
| Fact | Value |
|---|---|
| WH148 values | 10K, 50K, 100K ohm, linear taper |
| WH148 pack | 10 potentiometers, 10 nuts, 10 washers, $9.29 |
| WH148 shaft | 15 mm long, 6 mm diameter, knurled |
| WH148 terminals | 3, with a center wiper terminal |
| X9C104 taps | 100 taps across 100K ohm |
| X9C104 range | 40 ohm to 100K ohm, 5V, $9.49 |
What does linear taper mean?
Linear taper means the resistance changes evenly as you turn the shaft. A WH148 B type pot sweeps smoothly from one end to the other. The center wiper terminal gives a voltage between the two outer terminals. That even sweep suits volume controls, manual adjustments, and voltage dividers where each degree of turn should change the output by the same amount.
Which WH148 value fits your job?
Use 10K for Arduino projects and control panels that need a manual adjustment input. Use 50K for guitar wiring and audio gear where the circuit expects a higher value. Use 100K for high impedance inputs that must draw very little current. All three values share the same body. The shaft is 15 mm long and knurled, with a 7 mm mounting thread. The base is 16 mm across. The overall size is 24 mm by 16.8 mm by 24.5 mm.
When does the digital X9C104 win?
The X9C104 wins when your code must set the resistance, with no knob to turn. It gives 100 evenly spaced taps across 100K ohm, and the wiper position holds while powered. Pulse the INC pin to step the wiper, set U/D for direction, and use CS to select the chip. It suits bridge balance, offset trim, gain control, and voltage divider jobs that need repeatable settings.
How do you wire a WH148 potentiometer?
Wire the two outer terminals across your circuit and take the output from the center wiper terminal. Mount the pot through a panel hole with the 7 mm thread, and secure it with the included nut and washer. Fit a standard knob on the 15 mm knurled shaft. Check the dimension drawing on the product page before you cut the panel hole.
How do you wire the X9C104 module?
Connect VCC and GND to 5V power, with a working current of 3 mA. RH and RL are the high and low ends of the resistor, and RW is the wiper. Drive INC, U/D, and CS from digital pins on your board. The port voltage range is minus 5V to plus 5V, so keep the signals inside that range. See the pinout photo on the product page for the pin layout.
How do you build a hand volume control?
- Pick the WH148 value your audio circuit expects, 10K, 50K, or 100K.
- Mount the pot in the panel with the nut and washer.
- Wire the two outer terminals across the audio signal path.
- Take the output from the center wiper terminal.
- Fit a knob on the knurled shaft.
- Turn the shaft end to end and check the volume sweeps smoothly.
Parts that fit this guide
In-stock parts ship from the New York, USA warehouse. Prices below are the live store prices verified on November 12, 2026. Check the product page for the current price before you order.
WH148 10K Ohm Potentiometer, 10 Pack ($9.29)
WH148 B10K linear taper pot at $9.29 for 10. It has 3 terminals, a 15 mm knurled shaft, and a nut and washer per pot.
WH148 50K Ohm Potentiometer, 10 Pack ($9.29)
WH148 B50K linear taper pot at $9.29 for 10. It fits guitar wiring, stereos, and audio gear that expect a 50K value.
WH148 100K Ohm Potentiometer, 10 Pack ($9.29)
WH148 B100K linear taper pot at $9.29 for 10. It fits high impedance inputs and manual adjustment jobs.
HiLetgo X9C104 Digital Potentiometer Module ($9.49)
X9C104 module at $9.49. It gives 100 taps across 100K ohm at 5V, controlled with INC, U/D, and CS signals.
Shop the full range: Potentiometers and Resistors at Quality RC Parts. See also: 4-axis joystick potentiometer guide, which uses three 10K pots in one stick.
Frequently asked questions
Can I swap a 10K pot for a 100K pot?
Only if your circuit tolerates the higher value. A higher value draws less current but changes how the circuit loads the signal, so match the value your circuit expects.
Does the X9C104 need a knob?
No. Code sets the wiper position with INC, U/D, and CS signals, and the position holds while powered.
What size hole does a WH148 need?
The mounting thread is 7 mm in diameter. The base is 16 mm across, and the overall size is 24 mm by 16.8 mm by 24.5 mm.
How many pots come in a WH148 pack?
Ten potentiometers, ten nuts, and ten washers. Each pot includes its own mounting nut and washer.
Sources
- Renesas X9C104 digitally controlled potentiometer
- Potentiometers and Resistors category
- 4-Axis Joystick Potentiometer guide
Last updated: November 12, 2026.
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