This file is the instruction manual for the 3386-3/8” square trimming potentiometer, which introduces the product features, characteristics, model, specifications, etc.
The 3386 is a 3/8" square trimming potentiometer offered by Bourns. It is available in single‑turn, cermet, industrial‑sealed versions with optional knob, extended shaft, and various terminal styles (F, P, H, W, X). High‑voltage versions (HV2/HV3) and RoHS‑compliant options are also listed.
The datasheet details electrical characteristics such as resistance range, tolerance, contact resistance variation, insulation resistance, dielectric strength, and adjustment angle, as well as environmental and mechanical specifications like power rating, temperature range, torque, and terminal types. Ordering information, packaging options, and dimensional drawings are included for reference.
| Resistance Range | 10 to 2 megohms |
|---|---|
| Resistance Tolerance | ±10 % (standard) |
| Contact Resistance Variation | 2 % or 3 Ω max (whichever is greater) |
| Insulation Resistance | 500 VDC, 1,000 MΩ min |
| Dielectric Strength (Sea Level) | 900 VAC |
| Adjustment Angle | 280 ° nominal |
| Power Rating (max 300 V) | 0.5 W at 85 °C, 0 W at 125 °C |
| Temperature Range | -55 °C to +125 °C |
| Torque | 5.0 oz‑in max |
| Terminals | Solderable pins |
The 3386 offers a resistance range from 10 Ω to 2 MΩ.
Yes, the standard termination is 100 % tin‑plated and RoHS compliant.
The nominal adjustment angle is 280 degrees.
Common terminal styles are F, P, H, W, and X.