Features
Metal shaft and bushing
Consistent, smooth quality feel
Up to 4 sections available
Rotary switch option designed
for “on-off” function control
RoHS compliant*
81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
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 .........................................................................±20 % or 10 % ...................................... ±10 % or 5 %
Independent Linearity .................................................................................±5 % ...................................................... ±5 %
Absolute Minimum Resistance ...................................................................2 ohms maximum .................................. 2 ohms maximum
Eff ective 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 At 70 °C (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 infi nite .................................. Essentially infi nite
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 Coeffi cient 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 taper) 10 ohms or ..................... (All tapers) ±5 % TRS maximum
±10 % TRS max. (whichever is greater)
(Audio taper) ±20 % maximum
Contact Resistance Variation @ 50,000 cycles
(Audio taper) ..................................................................................±3 % ...................................................... ±3 %
(Linear taper) .................................................................................±2 % ...................................................... ±2 %
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift ...........................................................................(B & E tapers) ±10 % maximum ........... ±5 % maximum (all tapers)
(D, G, S & T tapers) ±20 % maximum
Insulation Resistance (500 VDC) ..........................................................100 megohms minimum ........................ 100 megohms minimum
IP Rating .....................................................................................................IP40 ....................................................... IP40
Mechanical Characteristics
Stop Strength
1/4 ” and 1/8 ” diameter shafts ......................................................................................................................................................... 45.19 N-cm (4 lb.-in.)
7/8 ” length shaft ................................................................................................................................................................................. 22.6 N-cm (2 lb.-in.)
Mechanical Angle ...................................................................................................................................................................................................... 300 ° ±5 °
Torque
Starting and Running Torque (Non-Locking Bushings)
Single Section .................................................................................................................................................................0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)
Dual Section ....................................................................................................................................................................0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)
Triple Section ...................................................................................................................................................................0.35 to 1.41 N-cm (0.5 to 2.0 oz.-in.)
Quadruple Section ..........................................................................................................................................................0.35 to 1.41 N-cm (0.5 to 2.0 oz.-in.)
Starting and Running Torque (Locking Bushings) ..................................................................................................... 0.14 to 2.82 N-cm (0.2 to 4.0 oz.-in.)
Shaft Locking Torque with Locknut @ 10 in-lb. (B & E Bushings) ........................................................................................................ 14 N-cm (20 oz-in.)
Mounting ...................................................................................................................................................................1.7-2.0 N-m (15-18 lb.-in.) maximum
Weight (Single Section).............................................................................................................................................................................. 21 grams maximum
(Each Additional Section) ...................................................................................................................................................................... 6 grams maximum
Terminals .......................................................................................................................................................................... Printed circuit terminals or J-Hooks
Soldering Condition .................................................................. Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025 ” wire diameter.
Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean fl ux.
Marking .......................................................................... Manufacturer’s trademark, wiring diagram, date code and resistance, manufacturer’s part number
Ganging (multiple section potentiometers) ..................................................................................................................................................... 4 cup maximum
Hardware ...........................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.
For dimensional drawings see pages 3 & 4.
For ordering information see page 5.
NOTE: Model 81/82 performance specifi cations 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.
Potentiometer Specifi cations
*RoHS COMPLIANT
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Initial Electrical Characteristics1
Contacts:
DPST ...............................................................................................................................................................................N.O/N.O.,N.C./N.C. or N.O./N.C.
Power Rating (Resistive Load):
DPST ............................................................................................................ 2 A @ 125 volts RMS-60 Hz or 2 A @ 28 VDC, 1 A @ 250 volts RMS-60 Hz
Contact Resistance (0.1 VDC-10 mA) ..................................................................................................................................................... 10 milliohms nominal
Contact Bounce ................................................................................................................................................................................ 5 milliseconds maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ............................................................................................................................................................................................. 1500 VAC minimum
Insulation Resistance ....................................................................................................................................................................... 1000 megohms minimum
Environmental Characteristics1
Operating Temperature Range ....................................................................................................................................................................... -40 °C to +70 °C
Storage Temperature Range ........................................................................................................................................................................ -65 °C to +125 °C
Vibration (Dual Section) ....................................................................................................................................................................................................... 8 G
(Triple Section) .................................................................................................................................................................................................... 5 G
(Quadruple Section) ........................................................................................................................................................................................... 3 G
Contact Resistance ........................................................................................................................................................................ 10 milliohms maximum
Contact Bounce ......................................................................................................................................................................... 0.1 millisecond maximum
Shock (Dual Section) ......................................................................................................................................................................................................... 20 G
(Triple Section) ...................................................................................................................................................................................................... 15 G
(Quadruple Section) ............................................................................................................................................................................................. 10 G
Contact Resistance ........................................................................................................................................................................ 10 milliohms maximum
Contact Bounce ......................................................................................................................................................................... 0.1 millisecond maximum
Rotational Life .....................................................................................................................................................................................................25,000 cycles
Switch Actuating Torque (50% Duty cycle @ Rated Power Load) .................................................................................. 1.41 to 4.94 N-cm (2 to 7 oz.-in.)
Contact Resistance ...................................................................................................................................................................... 100 milliohms maximum
Moisture Resistance (MIL-STD-202, Method 106, Condition B)
Contact Resistance (0.1 VDC-10 mA) ............................................................................................................................................ 10 milliohms maximum
Insulation Resistance (After 24 Hours @ Room Temperature) (500 VDC) .................................................................................... 100 megohms minimum
Switch Housing Material ................................................................................................................. High temperature, fl ame retardant, thermosetting plastic
Mechanical Characteristics1
Actuating Torque (Each Section, Switch Module Only) ....................................................................................................... 3.53 to 10.6 N-cm (5 to 15 oz.-in.)
Running Torque (Out of Detent, 2-4 Module Assembly) ..................................................................................................... 0.21 to 1.41 N-cm (0.3 to 2 oz.-in.)
Detent ..................................................................................................................................................................................................... CW or CCW standard
Actuation Angle ...................................................................................................................................................................................................................25 °
Contact Materials ..........................................................................................................................................................................Fine silver with gold overlay
Terminal Styles .................................................................................................................................................................................................. Solder lug only
Standard Orientation ..............................................................................................................................................................In-line with control terminals
Optional .......................................................................................................................................................................... Rotated 90 ° CCW from standard
Terminal Strength (Before and After Soldering Heat Exposure) .......................................................................................................... 0.9 Kg (2 lbs.) minimum
NOTE: Model 81/82 performance specifi cations 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.
Rotary Switch Specifi cations
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
81/82 - 5/8 ” Square Single-Turn Panel Control
Product Dimensions
"A" Bushing
3/8 " (9.53 mm) Dia. Plain - Single Shaft
3/8-32 UNEF
"B" Bushing
3/8 " (9.53 mm) Dia. Plain - Single Shaft
3/8-32 UNEF 4.45
(.175)
MIN.
"C" Bushing
1/4 " (6.35 mm) Dia. Plain - Single Shaft
"C" Bushing
1/4 " (6.35 mm) Dia. Plain - Concentric Shaft
3/8-32 UNEF
M10 x 0.75-6g
TRIPLE CONCENTRIC
(SPECIAL ORDER) 1/4-32 UNEF
"A" Bushing
3/8 " (9.53 mm) Dia. Plain - Concentric Shaft
"S" Bushing
10 mm Dia. Locking - Single Shaft
1/4-32 UNEF
"E" Bushing
1/4 " (6.35 mm) Dia. Locking - Single Shaft
9.50 ± .38
(.375 ±.015)
12.7,15.88,19.05,22.23± .79
(1/2, 5/8, 7/8, ± 1/32)
STANDARD
DIA.
(.063+.015/-.000)
SHAFT SLOT 1.19 WIDE X
1.60+.38/-.00 DEEP
(.047)
45 ° ±5 ° X
45 ° ±5 ° X
(.010)
CHAMFER
.25
45 ° ±5 ° X (.010)
CHAMFER
.25
7.92
(.312)MIN.
9.53 ± .13
(.375 ± .005)
PILOT DIA.
5.49 OPTIONAL FLAT 16.00 LONG OR 1.52 FROM
"A" BUSHING END FOR SHAFTS UNDER 17.46
(.216) (.63) (.06)
(11/16)
(.010)
CHAMFER
.25
45 ° ±5 ° X (.010)
CHAMFER
.25
(.063 +.015/-.000)
SHAFT SLOT 1.19 WIDE X
1.60 + .38/- .00 DEEP
(.047)
12.70 ± .13
(.500 ± .005)
15.88 ± .79
(5/8 ± 1/32)
STANDARD
6.32 ± .03
(.249 ± .001) DIA.
9.53 ± .13
(.375 ± .005)
PILOT DIA.
11.13
(.438)
MIN.
6.35 ± .13
(.250 ± .005)
9.53,12.7,15.88,19.05,22.23 ± .79
(3/8, 1/2, 5/8, 3/4, 7/8, ± 1/32)
STANDARD
SHAFT SLOT .79 WIDE X
.79 ± .25 DEEP
(.031)
(.031 ± .010)
2.39 ± .13 OPTIONAL FLAT 6.35 LONG OR 1.52 FROM
"C" BUSHING END FOR SHAFTS UNDER 14.30
(.094 ± . 005) (.250) (.06)
(9/16)
6.35 ± .05
(.250 ± .002)
PILOT DIA.
SHAFT SLOT .78 WIDE X
.78 ± .03 DEEP
(.031)
(.031 ± .001)
12.7 ± .13
(.500 ± .005)
10.80
(.425)
MIN.
15.88 ± .79
(5/8 ± 1/32)
STANDARD
3.18 ± .03
(.125 ± .001) DIA.
6.35 ± .05
(.250 ± .002)
PILOT DIA.
28.58 ± .79
(1-1/8 ± 1/32)
STANDARD
19.05 ± .79
(3/4 ± 1/32)
STANDARD
(.375)
9.53
6.32 ± .03
(.249 ±.001)DIA.
3.162 ± .025
(.1245 ± .001)DIA.
1.98 ± .03
(.078 ± .001)
DIA.
OUTER SHAFT 7.47 DIA. OPERATES SECTION #1 INNER SHAFT
3.18 DIA. OPERATES SECTION #2, #3, & #4 ("G" STYLE)
(.249)
(.125)
OUTER SHAFT 3.18 DIA. OPERATES SECTION #1 INNER SHAFT
.078 DIA. OPERATES SECTION #2, #3, & #4 ("K" STYLE)
(.125)
(1.95)
15.88 ± .79
(5/8 ± 1/32)
STANDARD
25.40 ± .79
(1 ± 1/32)
STANDARD
22.00 ± 0.79
(.866 ± .031)
STANDARD
PILOT DIA.
12.50 ± 0.38
(.492 ± .015)
10.92
(.430)
6.000 +0.000/-0.075
(.236 +.000/-.003)
1.01 ± 0.10
(.040 ± .004)
9.90
(.390)
1.80 ± 0.25
(.071 ± .010)
6.35
(.25)
3.162 ± .025
(.1245 ± .001)DIA.
1.98 ± .03
(.078 ± .001)DIA.
3.162 ± .025
(.1245 ± .001)
DIA.
6.35 ± .03
(1/4 ± 1/32)
1/4-32 UNEF
45 ° ±5 ° X (.010)
CHAMFER
.25
SHAFT SLOT
WIDE X
DEEP
DIA.
MIN.
DIMENSIONS: MM
(INCHES)
13
CCW
POTENTIOMETER
2
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
81/82 - 5/8 ” Square Single-Turn Panel Control
Product Dimensions
Dual Unit - PC Pins & J-Hook Triple Unit - PC Pins & J-Hook Quad Unit - PC Pins & J-Hook
FLATTED SHAFT
120 ° ± 5 ° CCW END
Shaft Flat Orientation*
SLOTTED SHAFT
123
30 ° ±5 °
*EXCLUDES MODELS 83 AND 84
Model 81
Suggested PC Board Layout - PC Pins
(Single-Shaft Style Bottom View)
Note: For units with dual concentric shaft styles, a
2.54 (.100) spacer is added between the module(s) driven
by the outer shaft and those driven by the inner shaft.
For G, K, or V shafts, add the spacer between
modules 1 and 2. For L or M shafts, add the spacer
between modules 2 and 3. For N or P shafts, add the
spacer between modules 3 and 4.
Model 81/82
Single Unit - PC Pins & J-Hook
Terminal outlines shown as solid lines represent PC Pins, available
on Model 81. Dashed line terminal outline represents "J" Hook,
available on Model 82.
1
3
2
26.04 ± .79
(1.025 ± .031)
10.16 ± .38
(.400 ± .015)
10.16 ± .38
(.400 ± .015) TYP. 10.16 ± .38
(.400 ± .015) TYP.
36.20 ± 1.19
(1.425 ± .047)
46.36 ± 1.19
(1.825 ± .047)
15.88 ± .41
(.625 ± .016)
5.97 ± .38
(.235 ± .015)
5.08 ± .38
(.200 ± .015)
15.88 ± .38
(.625 ± .015) 11.94
(.470)
9.58 ± .38
(.377 ± .015)
15.88 ± .38
(.625 ± .015)
5.33 ± .76
(.210 ± .03)
3.81
(.150)
MAX. 3 PLCS.
.81
(.032)
DIA.
5.08 ± .38
(.200 ± .015)
12.7
(.50)
1.14
(.045)
DIA.
5.08 ± .13
(.200 ± .005)
10.16 ± .13
(.400 ± .005)
5.08 ± .13
(.200 ± .005)
DIMENSIONS: MM
(INCHES)
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Product Dimensions
REAR
PLATE
COVER
(.725)
18.42
Switch Module
Model 85/86
Primary Potentiometer Module
Model 85/86
Secondary Potentiometer Module
Model 85/86
Locating Lug Options - All Model 80 Series
NOTE: "D" OPTION - NO A/R LUG. OTHER LOCATING LUG OPTIONS AVAILABLE. CONSULT FACTORY FOR DETAILS.
REAR
VERTICAL ORIENTATION
(Types R50, R51, R52 & R53)
HORIZONTAL ORIENTATION
(Types R56, R57, R58 & R59)
COVER
PLATE
SWITCH
MODULE
PRIMARY
POTENTIOMETER
MODULE
Assembly Sequence
Model 85/86
Switch Module Terminal Orientation
Secondary Potentiometer Module
TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.005)
.XX ± (.015)
ANGLE ± 5 %
14.53
(.572)
9.58 ± .38
(.377 ± .015)
12.7
(.50)
5.08
(.200)
5.97
(.235)
8.56
(.337)
10.16
(.400)
1.60
(.063)
8.56
(.337)
5.08
(.200)
15.88
(.625)
15.88
(.625)
5.08
(.200)
1.35
(.053)
2.77
(.109)
TYP.
6 PLACES
2.29
(.090)
(.095)L X (.045)W
SLOT TYP. 6 PLACES
2.41 1.14 2.92
(.115)
9.53
(.375)
.127
.38
7.75
(.305)
.46
(.018)
2.31
(.091)
3.18
(.125)
13.49
(.531)
2.36
(.093)
9.53
(.375) .79 ± .41
(.031 ± .016) E = 2.36 ± .76
(.093 ± .03)
H & J = 1.98 ± .41
(.078 ± .016)
FLATTED SHAFT
120 ° ± 5 ° CCW END
Shaft Flat Orientation*
SLOTTED SHAFT
30 ° ± 5 °
*EXCLUDES MODELS 83 AND 84
3
12
4
DPST (NO/NC)
(TYPES 50, 51, 56, 57)
3
1
DPST (NO/NO)
(TYPES 52, 53, 58, 59)
4
2
Switch contacts shown in detent position.
31
43
21
24
A7.75
(.305)
.46
(.018)
C
A E J
7.75
(.305) .46
(.018)
2.31
(.091)
.79 ± .41
(.031 ± .016)
MOUNTING
SURFACE
RECOMMENDED
PANEL LAYOUT
7.75
(.305) 2.49
(.098)
#40 DRILL
DIA.
9.91
(.390) DIA.
DIMENSIONS: MM
(INCHES)
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
How To Order
8 5 A 2 A - B 2 8 - A 1 5 / R51 L
8 1 A 2 A - B 2 8 - A 1 5 / A15 L
ELEMENT TAPER RESISTANCE CODE
TYPE/TOLERANCE VALUE IN OHMS
(A) Linear Cermet ±10 % (05) - 100 (30) - 15 K
(H) Linear Cermet ±5 % (28) - 150 (16) - 20 K
(06) - 200 (17) - 25 K
(07) - 250 (18) - 50 K
(08) - 500 (19) - 75 K
(09) - 750 (20) - 100 K
(10) - 1 K (31) - 150 K
(29) - 1.5 K (21) - 200 K
(11) - 2 K (22) - 250 K
(12) - 2.5 K (23) - 500 K
(13) - 5 K (24) - 750 K
(14) - 7.5 K (25) - 1 M
(15) - 10 K
(B) Linear C-P ±20 % (10) - 1 K (18) - 50 K
(E) Linear C-P ±10 % (12) - 2.5 K (20) - 100 K
(13) - 5 K (22) - 250 K
(15) - 10 K (23) - 500 K
(16) - 20 K (25) - 1 M
(17) - 25 K
(C) CW Audio Cermet ±10 % (10) - 1 K (18) - 50 K
(D) CW Audio C-P ±20 % (12) - 2.5 K (20) - 100 K
(F) CCW Audio Cermet ±10 % (13) - 5 K (22) - 250 K
(G) CCW Audio C-P ±20 % (15) - 10 K (23) - 500 K
(S) CW Audio C-P ±10 % (17) - 25 K (25) - 1 M
(T) CCW Audio C-P ± 10 %
AVAILABLE ONLY IN
SHAFT TYPE LENGTHS BUSHINGS
(CODE) (CODE)
A Single Plain 1/4 ” (6.35 mm) D 16,20,24,28 A, B, J
B Single Slotted 1/4 ” (6.35 mm) D 16,20,24,28 A, B, J
C Single Flatted 1/4 ” (6.35 mm) D 20,24,28 A, B, J
E Single Slotted 1/8 ” (3.18 mm) D 12,16,20,24,28 C, E, N
F Single Flatted 1/8 ” (3.18 mm) D 24 C, N
G Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D 36,40 A, J
Outer Operates Section 1
K Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36 C, N
Outer Operates Section 1
L Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D 36,40 A, J
Outer Operates Section 1/2
M Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36 C, N
Outer Operates Section 1/2
N Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D 36,40 A, J
Outer Operates Section 1/2/3
P Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36 C, N
Outer Operates Section 1/2/3
R Single Slotted 6 mm D 16,19,22,50 R, S
T Single Slotted 4 mm D 10, 13, 22 U
V Dual Concentric Plain 6 mm D - 3 mm D 30, 42 R
Outer Operates Section 1
A Plain 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) L
B Locking 3/8 ” (9.53 mm) D x 1/2 ” (12.7 mm) L
C Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L
E Locking 1/4 ” (6.35 mm) D x 1/2 ” (12.7 mm) L
J Plain 3/8 ” (9.53 mm) D x 1/4 ” (6.35 mm) L
N Plain 1/4 ” (6.35 mm) D x 3/8 ” (9.53 mm) L
R Plain 10 mm D x 9 mm L
S Locking 10 mm D x 12.5 mm L
U Plain 7 mm D x 6 mm L
MODEL
81 Single-Turn, PC Pins
82 Single-Turn, J-Hooks
85 Single-Turn, Pot/Rotary Switch, PC Pins
86 Single-Turn, Pot/Rotary Switch, J-Hooks
SWITCH TYPE (MODELS 85 & 86 ONLY)
(R50) DPST N.O./N.C. CW Detent In-Line Term
(R51) DPST N.O./N.C. CCW Detent In-Line Term
(R52) DPST N.O./N.O. CW Detent In-Line Term
(R53) DPST N.O./N.O. CCW Detent In-Line Term
(R56) DPST N.O./N.C. CW Detent Horz Term
(R57) DPST N.O./N.C. CCW Detent Horz Term
(R58) DPST N.O./N.O. CW Detent Horz Term
(R59) DPST N.O./N.O. CCW Detent Horz Term
# SECTIONS APPLICABLE MODELS
1 Single 81,82
2 Double 81,82,85,86
3 Triple 81,82,85,86
4 Quad 81,82,85,86
BUSHING
A Single .305 R, 90 °CW
B Double .305 R, 90 ° & 270 °CW
C Single .305 R, 270 °CW
D No Lug
E Single .531 R, 90 °CW
F Single .305 R, 180 °CW
J Single .375 R, 90 °CW
K Double .375 R, 90 ° & 270 °CW
ANTI-ROTATION LUG
RoHS IDENTIFIER
CompliantL
Models 81 & 82: Part number for multiple section
potentiometers must have a taper and resistance value for
each section.
Models 85 & 86: Part number must contain a switch type.
Boldface features are Bourns standard options.
All others are available with higher minimum order
quantities.
SHAFT AVAILABLE
LENGTH ONLY IN
(FMS) BUSHING
Code Description Code
12 3/8 ” L C, N, J
16 1/2 ” L A, C, J, N
20 5/8 ” L A, B, C, E, J, N
24 3/4 ” L A, B, C, E, J, N
28 7/8 ” L A, B, C, E, J, N
32 1 ” L A, B, C, E, J, N
36 1-1/8 ” L A, B, C, E, J, N
40 1-1/4 ” L A, B, C, E, J, N
Metric
10 10 mmL U
13 13 mmL U
16 16 mmL R, S
19 19 mmL R, S
22 22 mmL R, S, U
30 30 mmL R, S
42 42 mmL R, S
50 50 mmL R, S
REV. 11/14
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
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82C1A-E24-E13L 82E1A-E20-A05L 82E1A-E20-E12L 82E1A-E20-E18L 82C1A-E24-E15L 82C1A-E24-S15L
82C1A-E24-E22L 82E1A-E20-E17L 82C1A-E24-B25L 82C1A-E24-S13L 86C2A-E24-E10/R51L 82E1A-E20-E10L
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82C1A-E24-S10L 86C2A-E24-E12/R51L 86C2A-E24-E20/R51L 82C1A-E24-S25L 86C2A-E24-B23/R51L 82C1A-
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