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91A2A Datasheet, PDF (1/6 Pages) Bourns Electronic Solutions – 91, 92, 93, 94, 95, 96 - 5/8 ” Square Single-Turn Panel Control 97, 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
*RoHS VCEOARMVSAPIOILLINAASBNLTE
Features
■ Available in a variety of pin-out
configurations
■ Virtually infinite electrical circuit isolation
■ Model 96 sealed for board wash
■ Metal or plastic shaft options
91, 92, 93, 94, 95, 96 - 5/8 ” Square Single-Turn Panel Control
97, 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Potentiometer Specifications
Initial Electrical Characteristics1
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) 0.5 watt...................................... (Linear tapers) 2 watts
(Audio tapers) 0.25 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
Environmental Characteristics1
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 (Model 96) .......................................... IP 65 .....................................................................IP 65
(All Others) .................................................... IP 40 .....................................................................IP 40
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.