Features
■ RoHS compliant versions available*
■ Metal shaft and bushing
■ Consistent, smooth quality feel
■ Up to 4 sections available
■ Rotary switch option designed
for “on-off” function control
81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 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.....................................................................±±0 ꢀ or 10 ꢀ............................................±10 ꢀ or ꢁ ꢀ
Independent Linearity.............................................................................±ꢁ ꢀ............................................................±ꢁ ꢀ
Absolute Minimum Resistance...............................................................± ohms maximum........................................± ohms maximum
Effective Electrical Angle ........................................................................(Linear tapers) ±40 ° ± ꢁ °............................(Linear tapers) ±40 ° ± ꢂ °
(Audio tapers) ±±ꢁ ° ± ꢁ °
(Audio tapers) ±±ꢁ ° ± ꢂ °
Contact Resistance Variation .................................................................±1 ꢀ............................................................±1 ꢀ or ꢃ ohms (ꢄhichever is greater)
Dielectric Withstanding Voltage (MIL-STD-±0±, Method ꢃ01)
Sea Level............................................................................................1,ꢁ00 VAC minimum....................................1,ꢁ00 VAC minimum
70,000 Feet ........................................................................................ꢁ00 VAC minimum.......................................ꢁ00 VAC minimum
Insulation Resistance (ꢁ00 VDC) ............................................................1,000 megohms minimum...........................1,000 megohms minimum
Poꢄer Rating At 70 °C (Voltage Limited By Poꢄer Dissipation or ꢃꢁ0 VAC, Whichever Is Less)
+70 °C Single Section Assembly .......................................................(Linear tapers) 0.ꢁ ꢄatt................................(Linear tapers) ± ꢄatts
(Audio tapers) 0.±ꢁ ꢄatt
(Audio tapers) 1 ꢄatt
+70 °C Multiple Section Assembly.....................................................(Linear tapers) 0.ꢁ ꢄatt/section...................(Linear tapers) 1 ꢄatt/section
(Audio tapers) 0.±ꢁ ꢄatt/section
(Audio tapers) 0.ꢁ ꢄatt/section
+1±ꢁ °C ..............................................................................................0 ꢄatt...........................................................0 ꢄatt
Theoretical Resolution............................................................................Essentially infinite........................................Essentially infinite
Environmental Characteristics1
Operating Temperature Range ...............................................................-40 °C to +1±ꢁ °C........................................-40 °C to +1±ꢁ °C
Storage Temperature Range...................................................................-ꢁꢁ °C to +1±ꢁ °C........................................-ꢁꢁ °C to +1±ꢁ °C
Temperature Coefficient Over Storage Temperature Range...................±1,000 ppm/°C............................................±1ꢁ0 ppm/°C
Vibration (Single Section)........................................................................1ꢁ G.............................................................1ꢁ G
Total Resistance Shift.........................................................................±± ꢀ maximum...........................................±± ꢀ maximum
Voltage Ratio Shift..............................................................................±ꢁ ꢀ maximum...........................................±ꢁ ꢀ maximum
Shock (Single Section)............................................................................ꢃ0 G.............................................................ꢃ0 G
Total Resistance Shift.........................................................................±± ꢀ maximum...........................................±± ꢀ maximum
Voltage Ratio Shift..............................................................................±ꢁ ꢀ maximum...........................................±ꢁ ꢀ maximum
Load Life.................................................................................................1,000 hours .................................................1,000 hours
Total Resistance Shift.........................................................................±10 ꢀ maximum.........................................±ꢁ ꢀ maximum
Rotational Life (No Load)........................................................................100,000 cycles ............................................100,000 cycles
Total Resistance Shift.........................................................................(Linear taper) 10 ohms or ±10 ꢀ TRS max. .(All tapers) ±ꢁ ꢀ TRS maximum
(ꢄhichever is greater)
(Audio taper) ±±0 ꢀ maximum
Contact Resistance Variation @ ꢁ0,000 cycles
(Audio taper) ................................................................................±ꢃ ꢀ............................................................±ꢃ ꢀ
(Linear taper) ...............................................................................±± ꢀ............................................................±± ꢀ
Moisture Resistance (MIL-STD-±0±, Method 10ꢃ, Condition B)
Total Resistance Shift.........................................................................(B & E tapers) ±10 ꢀ maximum .................±ꢁ ꢀ maximum (all tapers)
(D, G, S & T tapers) ±±0 ꢀ maximum
Insulation Resistance (ꢁ00 VDC)........................................................100 megohms minimum..............................100 megohms minimum
IP Rating.................................................................................................IP 40 ............................................................IP 40
Mechanical Characteristics1
Stop Strength
1/4 ” and 1/8 ” diameter shafts ............................................................................................................................................................4ꢁ.19 N-cm (4 lb.-in.)
7/8 ” length shaft ....................................................................................................................................................................................±±.ꢂ N-cm (± lb.-in.)
Mechanical Angle ........................................................................................................................................................................................................ꢃ00 ° ±ꢁ °
Torque
Starting and Running Torque (Non-Locking Bushings)
Single Section ..........................................................................................................................................................0.14 to 1.0ꢂ N-cm (0.± to 1.ꢁ oz.-in.)
Dual Section..............................................................................................................................................................0.14 to 1.0ꢂ N-cm (0.± to 1.ꢁ oz.-in.)
Triple Section ............................................................................................................................................................0.ꢃꢁ to 1.41 N-cm (0.ꢁ to ±.0 oz.-in.)
Quadruple Section....................................................................................................................................................0.ꢃꢁ to 1.41 N-cm (0.ꢁ to ±.0 oz.-in.)
Starting and Running Torque (Locking Bushings) ........................................................................................................0.14 to ±.8± N-cm (0.± to 4.0 oz.-in.)
Shaft Locking Torque ꢄith Locknut @ 10 in-lb. (B & E Bushings) ............................................................................................................14 N-cm (±0 oz-in.)
Mounting ......................................................................................................................................................................1.7-±.0 N-m (1ꢁ-18 lb.-in.) maximum
Weight (Single Section) ................................................................................................................................................................................±1 grams maximum
(Each Additional Section) ..........................................................................................................................................................................ꢂ grams maximum
Terminals ............................................................................................................................................................................Printed circuit terminals or J-Hooks
Soldering Condition ......................................................................Recommended hand soldering using Sn9ꢁ/Agꢁ no clean solder, 0.0±ꢁ ” ꢄire diameter.
Maximum temperature ꢃ99 °C (7ꢁ0 °F) for ꢃ seconds. No ꢄash process to be used ꢄith no clean flux.
Marking............................................................................Manufacturer’s trademark, ꢄiring diagram, date code and resistance, manufacturer’s part number
Ganging (multiple section potentiometers)........................................................................................................................................................4 cup maximum
Hardꢄare ............................................One lockꢄasher and one mounting nut is shipped ꢄith each potentiometer, except ꢄhere noted in the part number.
NOTE: Model 81/82 performance specifications do not apply to units subjected to printed circuit board cleaning procedures.
1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
For dimensional drawings see pages 3 & 4.
For ordering information see page 5.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
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