The 3851/3852/3856 - 3/4 ” Diameter Panel Control has a linear sliding resistor with a standard resistance range of 1 k to 1 Megohm and a resistance tolerance of ±10 % or ±20 %.
This datasheet describes the Bourns 3851/3852/3856 series of 3/4" diameter panel potentiometers. It lists the available linear (A, B, E, H) and audio (C, D, F, G) tapers, resistance ranges, tolerance, and power ratings for each taper type.
Mechanical details include torque specifications, mounting dimensions, soldering recommendations, and environmental limits such as operating temperature and vibration life. Ordering tables give shaft types, terminal styles, and resistance values for each model variant.
| Standard Resistance Range | 1 kΩ to 1 MΩ |
|---|---|
| Linear Tapers | A, B, E, H |
| Audio Tapers | C, D, F, G |
| Power Rating (Audio Tapers) | 0.5 W (1 W max) |
| Maximum Soldering Temperature | 399 °C (750 °F) for 3 s |
| Operating Temperature Range | 1 °C to +125 °C (up to +150 °C for some models) |
The resistance range is from 1 kΩ up to 1 MΩ.
The recommended maximum soldering temperature is 399 °C (750 °F) for 3 seconds.
It can operate from 1 °C up to +125 °C (some versions up to +150 °C).