3299 3/8 ” Square Trimming Potentiometer is a 3/8 ” Square/ Multiturn / Cermet / Industrial / Sealed type, with five popular terminal styles, standoffs, and patent #4427966 drive mechanism, and a RoHS compliant* version is available.
The 3M 3299‑3/8 square trimming potentiometer is a multiturn, cermet, sealed industrial component available in five terminal styles. It is RoHS compliant and features a patented drive mechanism.
Key specifications include a resistance range of 10 Ω to 2 MΩ, ±10 % tolerance, 0.5 W power rating at 70 °C, temperature operation from –55 °C to +125 °C, and robust environmental ratings such as 85 °C seal test and 20 G vibration resistance. This manual is written in Chinese.
| Standard Resistance Range | 10 to 2 megohms |
|---|---|
| Resistance Tolerance | ±10 % std. |
| Insulation Resistance | 500 VDC, 1,000 MΩ min. |
| Power Rating | 0.5 W at 70 °C |
| Temperature Range | -55 °C to +125 °C |
| Seal Test Temperature | 85 °C Fluorinert |
Yes, a RoHS‑compliant version is available.
The standard tolerance is ±10 % (tighter tolerance available).
It can dissipate 0.5 W at 70 °C.