Standard Resistance Range 10 Ohms to 2 Megohms Standard Resistance Tolerance
This document provides a comprehensive technical overview of the BI Technologies Model 66, a 3/8 inch square multiturn cermet trimming potentiometer. It covers standard resistance ranges from 10 Ohms to 2 Megohms, with tolerances of ±10% (±20% for values under 100 Ohms) and a power rating of 0.5 Watts at 70°C.
The datasheet details extensive environmental and mechanical performance, including an operating temperature range of –65°C to +150°C, a temperature coefficient of ±100 ppm/°C, and resistance to solder heat up to 260°C. It also includes packaging options such as Box, Tape & Reel, and Ammo Pack, along with specific circuit and mechanical dimensions.
| Resistance Range | 10 Ohms to 2 Megohms |
|---|---|
| Resistance Tolerance | ±10% (<100 Ohms = ±20%) |
| Power Rating | 0.5 Watts at 70°C |
| Operating Temperature Range | –65°C to +150°C |
| Temperature Coefficient | ±100 ppm/°C |
| Actual Electrical Travel | 20 turns nominal |
| Dielectric Strength | 1,000 Vrms |
| Insulation Resistance | 1,000 Megohms Min. |
| Contact Resistance Variation | 1% or 1 Ohm Max. |
| Weight | 0.04 oz. nominal (1.1 grams) |
The standard resistance tolerance is ±10%, except for values under 100 Ohms which is ±20%.
The maximum input voltage is 200 Vdc or rms, provided it does not exceed the power rating.
The device operates within a temperature range of –65°C to +150°C.