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.
Customers 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
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 At 70 °C (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 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.
Customers 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.
DPDT ................................................................................................................................................................................2 N.O./N.C. (break before make)
Power Rating (Resistive Load):
DPST ............................................................................................................ 2 A @ 125 volts RMS-60 Hz or 2 A @ 28 VDC, 1 A @ 250 volts RMS-60 Hz
DPDT ...........................................................................................................................................................1 A @ 125 volts RMS-60 Hz or 1 A @ 28 VDC
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 ...........................................................................................................................................................................0 °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.
Customers 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 ("G" 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.
Customers 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)
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
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. FOR DETAILS CONSULT FACTORY.
REAR
COVER
PLATE
SWITCH
MODULE
PRIMARY
POTENTIOMETER
MODULE
Assembly Sequence
Model 85/86
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
A7.75
(.305)
.46
(.018)
2.31
(.091)
E
3.18
(.125)
13.49
(.531)
J
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.
NOTE: Switch terminals shown in vertical position.
31
2654
15.88
(.625)
REF.
DIMENSIONS: MM
(INCHES)
Specifi cations are subject to change without notice.
Customers 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
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
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. 06/13/12
