Model 91, 92, 93, 94 & 95 - 5/8 ” Square Single-Turn Panel Control

Features

configurations

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

Conductive Plastic Element

Cermet Element

Standard Resistance Range

Linear Tapers (A, B, E, & H).........................(B & E) 1 K ohms to 1 megohm ......................... (A & H) 100 ohms to 1 megohm

Audio Tapers (C, D, F, G, S, & T) .................(D,G,S, & T) 1 K ohms to 1 megohm ................. (C & F) 1 K ohms to 1 megohm

Total Resistance Tolerance...............................10 % or 20 % .................................................... 5% or 10%

Independent Linearity.......................................±5 %.................................................................. ±5 %

Absolute Minimum Resistance.........................2 ohms maximum.............................................. 2 ohms maximum

Effective Electrical Angle ..................................(Linear tapers) 240 ° ± 5 °.................................. (Linear tapers) 240 ° ± 6 °

(Audio tapers) 225 ° ± 5 ° .................................. (Audio tapers) 225 ° ± 6 °

Contact Resistance Variation ...........................±1 %.................................................................. ±1 % or 3 ohms (whichever is greater)

Dielectric Withstanding Voltage (MIL-STD-202, Method 301)

Sea Level ....................................................1,500 VAC minimum.......................................... 1,500 VAC minimum

70,000 Feet .................................................500 VAC minimum............................................. 500 VAC minimum

Insulation Resistance (500 VDC) ......................1,000 megohms minimum................................. 1,000 megohms minimum

Power Rating (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)

+70 °C Single Section Assembly ................(Linear tapers) 1 watt......................................... (Linear tapers) 2 watts

(Audio tapers) 0.5 watt ...................................... (Audio tapers) 1 watt

+70 °C Multiple Section Assembly .............(Linear tapers) 0.5 watt/section......................... (Linear tapers) 1 watt/section

(Audio tapers) 0.25 watt/section ....................... (Audio tapers) 0.5 watt/section

+125 °C.......................................................0 watt................................................................. 0 watt

Theoretical Resolution......................................Essentially infinite .............................................. Essentially infinite

Operating Temperature Range .......................... -40 °C to +125 °C ................................................ -40 °C to +125 °C

Storage Temperature Range.............................. -55 °C to +125 °C ................................................ -55 °C to +125 °C

Temperature Coefficient Over Storage

Temperature Range.......................................... ±1,000 ppm/°C..................................................... ±150 ppm/°C

Vibration (Single Section)................................... 15 G...................................................................... 15 G

Total Resistance Shift................................... ±2 % maximum.................................................... ±2 % maximum

Voltage Ratio Shift........................................ ±5 % maximum.................................................... ±5 % maximum

Shock (Single Section)....................................... 30 G...................................................................... 30 G

Total Resistance Shift................................... ±2 % maximum.................................................... ±2 % maximum

Voltage Ratio Shift........................................ ±5 % maximum.................................................... ±5 % maximum

Load Life ............................................................ 1,000 hours .......................................................... 1,000 hours

Total Resistance Shift................................... ±10 % maximum.................................................. ±5 % maximum

Rotational Life (No Load) ................................... 100,000 cycles ..................................................... 100,000 cycles

Total Resistance Shift................................... (Linear tapers) 10 ohms or ±15 % TRS max. ...... (All tapers) ±5 % TRS max.

(whichever is greater)

(Audio tapers) ±20 % maximum

Contact Resistance Variation

@ 50,000 cycles ........................................... (Linear tapers) ±2 %............................................. ±2 %

(Audio tapers) ±3 % ............................................. ±3 %

Moisture Resistance (MIL-STD-202, Method 103, Condition B)

Total Resistance Shift................................... (Linear tapers) ±10 % TRS maximum ................. (All tapers) ±5 % TRS maximum

(Audio tapers) ±20 % TRS maximum

Insulation Resistance (500 VDC).................. 100 megohms minimum ...................................... 100 megohms minimum

IP Rating ............................................................ IP 40 ..................................................................... IP 40