The 3339 - 5/16 ” Round Trimming Potentiometer is a four-turn/cermet/industrial/sealed switch from ALPS that offers precise wiper setting of a multiturn in a single-turn package size. It is available in top and side adjust styles and RoHS compliant* versions.
The Bourns 3339 is a four‑turn, cermet, sealed round trimming potentiometer with a 5/16‑inch body. It features a planetary drive for precise wiper setting and is offered in top‑adjust and side‑adjust styles, with a RoHS‑compliant version available.
The device provides selectable resistance ranges from 10 Ω to 1 MΩ, a standard tolerance of ±10 % (tighter tolerances available), a 0.5 W power rating, and operates from –55 °C to +150 °C. Detailed electrical, mechanical, and environmental specifications are listed, and ordering codes are provided.
| Resistance tolerance | ±10 % (standard) |
|---|---|
| Power rating | 0.5 W @ 85 °C |
| Operating temperature range | -55 °C to +150 °C |
| Torque (max) | 3 oz‑in |
| Package size | 5/16" round |
Yes, a RoHS‑compliant version is available.
The device can operate up to +150 °C (and down to –55 °C).