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VE S CO

AV R M

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BL S NT

Features

■

Metal shaft and bushing

■

Consistent, smooth quality feel

■

Up to 4 sections available

■

Rotary switch option designed

■

RoHS compliant versions available*

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 Characteristics

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 inﬁnite .................................. Essentially inﬁnite

Environmental Characteristics

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 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 .....................................................................................................IP 40 ...................................................... IP 40

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 ﬂux.

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 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.

*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

81/82 - 5/8 ” Square Single-Turn Panel Control

85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch

Rotary Switch Speciﬁcations

Initial Electrical Characteristics

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

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 Characteristics

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

Shock (Dual Section) ......................................................................................................................................................................................................... 20 G

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.)

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, ﬂame retardant, thermosetting plastic

Mechanical Characteristics

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 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.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications

81/82 - 5/8 ” Square Single-Turn Panel Control

Product Dimensions

"A" Bushing

3/8 " (9.53 mm) Dia. Plain - Single Shaft

12.7,15.88,19.05,22.23± .79

(1/2, 5/8, 7/8,

1/32)

STANDARD

3/8-32 UNEF

6.35

.03

DIA.

(1/4

1/32)

1.19 WIDE X

SHAFT SLOT

(.047)

1.60+.38/-.00

DEEP

(.063+.015/-.000)

7.92

MIN.

.25

(.312)

° ±5 °

X (.010)

9.53

.13

CHAMFER

(.375

.005)

PILOT DIA.

5.49 OPTIONAL FLAT 16.00 LONG OR 1.52 FROM

(.63)

(.216)

(.06)

17.46

"A" BUSHING END FOR SHAFTS UNDER

(11/16)

"B" Bushing

3/8 " (9.53 mm) Dia. Plain - Single Shaft

15.88

.79

(5/8

1/32)

STANDARD

1.19

SHAFT SLOT

WIDE X

(.047)

1.60 + .38/- .00 DEEP

(.063 +.015/-.000)

6.32

.03

DIA.

(.249

.001)

.25

° ±5 °

CHAMFER (.010)

"C" Bushing

1/4 " (6.35 mm) Dia. Plain - Single Shaft

9.53,12.7,15.88,19.05,22.23

.79

(3/8, 1/2, 5/8, 3/4, 7/8,

1/32)

STANDARD

3.162

.025

DIA.

(.1245

.001)

.79

SHAFT SLOT

WIDE X

(.031)

.79

.25 DEEP

(.031

.010)

.25

° ±5 °

CHAMFER (.010)

9.50

.38

(.375

±.015)

12.70

.13

(.500

.005)

6.35

.13

(.250

.005)

1/4-32 UNEF

3/8-32 UNEF

11.13

(.438)

MIN.

9.53

.13

(.375

.005)

PILOT DIA.

4.45

(.175)

MIN.

6.35

.05

(.250

.002)

PILOT DIA.

2.39

.13 OPTIONAL FLAT 6.35 LONG OR 1.52 FROM

(.094

. 005)

(.250)

14.30 (.06)

"C" BUSHING END FOR SHAFTS UNDER

(9/16)

"E" Bushing

1/4 " (6.35 mm) Dia. Locking - Single Shaft

12.7

.13

(.500

.005)

15.88

.79

(5/8

1/32)

STANDARD

3.18

.03

DIA.

(.125

.001)

10.80

(.425)

MIN.

6.35

.05

(.250

.002)

PILOT DIA.

SHAFT SLOT .78 WIDE X

.78

.03 (.031)

(.031

.001) DEEP

.25

° ±5 °

X (.010)

CHAMFER

"A" Bushing

3/8 " (9.53 mm) Dia. Plain - Concentric Shaft

28.58

.79

(1-1/8

1/32)

STANDARD

9.53

(.375)

6.32

.03

DIA.

(.249

±.001)

3.162

.025

DIA.

(.1245

.001)

"C" Bushing

1/4 " (6.35 mm) Dia. Plain - Concentric Shaft

25.40

.79

1/32)

STANDARD

6.35

(.25)

1.98

.03

DIA.

(.078

.001)

19.05

.79

(3/4

1/32)

STANDARD

15.88

.79

(5/8

1/32)

STANDARD

1/4-32 UNEF

3/8-32 UNEF

1.98

.03

DIA.

TRIPLE CONCENTRIC (.078

.001)

(SPECIAL ORDER)

1/4-32 UNEF

3.162

.025

DIA.

(.1245

.001)

7.47

OUTER SHAFT

DIA. OPERATES SECTION #1 INNER SHAFT

(.249)

3.18

DIA. OPERATES SECTION #2, #3, & #4 ("G" STYLE)

(.125)

OUTER SHAFT 3.18 DIA. OPERATES SECTION #1 INNER SHAFT

(.125)

.078

(1.95) DIA. OPERATES SECTION #2, #3, & #4 ("G" STYLE)

"S" Bushing

10 mm Dia. Locking - Single Shaft

22.00 ± 0.79

(.866 ± .031)

STANDARD

SHAFT SLOT

1.01 ± 0.10

(.040 ± .004)

1.80 ± 0.25

DEEP

WIDE X

(.071 ± .010)

12.50 ± 0.38

(.492 ± .015)

DIMENSIONS:

(INCHES)

CCW

M10 x 0.75-6g

MIN.

10.92

(.430)

6.000 +0.000/-0.075

DIA.

(.236 +.000/-.003)

.25

° ±5 °

CHAMFER (.010)

9.90

PILOT DIA.

(.390)

POTENTIOMETER

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications

81/82 - 5/8 ” Square Single-Turn Panel Control

Product Dimensions

Dual Unit - PC Pins & J-Hook

26.04

.79

(1.025

.031)

Triple Unit - PC Pins & J-Hook

36.20

1.19

(1.425

.047)

Quad Unit - PC Pins & J-Hook

46.36

1.19

(1.825

.047)

10.16

.38

(.400

.015)

10.16

.38

TYP.

(.400

.015)

10.16

.38

TYP.

(.400

.015)

Model 81/82

Single Unit - PC Pins & J-Hook

15.88

.38

(.625

.015)

11.94

(.470)

9.58

.38

(.377

.015)

15.88

.38

(.625

.015)

Model 81

Suggested PC Board Layout - PC Pins

(Single-Shaft Style Bottom View)

5.08

.13

(.200

.005)

1.14

DIA.

(.045)

Shaft Flat Orientation*

120

° ±

CCW END

15.88

.41

(.625

.016)

1 2 3

FLATTED SHAFT

12.7

(.50)

5.97

.38

(.235

.015)

5.08

.38

(.200

.015)

5.33

.76

(.210

.03)

10.16

.13

(.400

.005)

5.08

.13

(.200

.005)

° ±5 °

3.81

MAX. 3 PLCS.

(.150)

.81

DIA.

(.032)

5.08

.38

(.200

.015)

Terminal outlines shown as solid lines represent PC Pins, available

on Model 81. Dashed line terminal outline represents "J" Hook,

available on Model 82.

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.

SLOTTED SHAFT

*EXCLUDES MODELS 83 AND 84

DIMENSIONS:

(INCHES)

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications

85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch

Product Dimensions

Primary Potentiometer Module

Model 85/86

14.53

(.572)

Secondary Potentiometer Module

Model 85/86

10.16

(.400)

15.88

(.625)

15.88

(.625)

Shaft Flat Orientation*

° ±

9.58

.38

(.377

.015)

120

° ±

CCW END

12.7

(.50)

FLATTED SHAFT

1.60

5.08 (.063)

(.200)

5.08

(.200)

5.08

(.200) 8.56

(.337)

5.97

(.235)

8.56

(.337)

SLOTTED SHAFT

*EXCLUDES MODELS 83 AND 84

Switch Module

Model 85/86

REAR

PLATE

COVER

2.77

(.109)

1.35

(.053)

2.29

(.090)

TYP.

6 PLACES

Assembly Sequence

Model 85/86

Secondary Potentiometer Module

15.88

(.625)

REF.

18.42

(.725)

2.41

1.14

(.095)L X (.045)W

SLOT TYP. 6 PLACES

2.92

(.115)

9.53

(.375)

REAR

COVER

PLATE

SWITCH

MODULE

PRIMARY

POTENTIOMETER

MODULE

NOTE: Switch terminals shown in vertical position.

DPST (NO/NC)

(TYPES 50, 51, 56, 57)

DPST (NC/NC)

(TYPES 54, 55, 60, 61)

DPST (NO/NO)

(TYPES 52, 53, 58, 59)

DPDT (NC/NC)

(TYPES 70, 71, 72, 73)

Switch contacts shown in detent position.

Locating Lug Options - All Model 80 Series

.46

(.018)

7.75

(.305)

E = 2.36

.76

(.093

.03)

H & J = 1.98

.41

(.078

.016)

13.49

(.531)

9.53

(.375)

11.10

(.437)

.79

.41

(.031

.016)

2.31

(.091)

3.18

(.125)

2.36

(.093)

3.18

(.125)

DIMENSIONS:

NOTE: "D" OPTION - NO A/R LUG. OTHER LOCATING LUG OPTIONS AVAILABLE. FOR DETAILS CONSULT FACTORY.

(INCHES)

.XX

.38

(.015)

ANGLE

5 %

.127

TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX

(.005)

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications