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Features

Available in a variety of pin-out

Applications

Test and measurement equipment

Medical and laboratory equipment

Avionics controls

configurations

Virtually infinite electrical circuit isolation

Extended rotational life

RoHS compliant*

Model 91, 92, 93 & 95 - Long Life Series

Conductive Plastic Element

Initial Electrical Characteristics

Ro VE LEA

HS RS D

C ION FRE

OM S E

PL AR

IA E

Standard Resistance Range .................................................................................................................................................. 1K, 5K, 10K ohms

Total Resistance Tolerance ......................................................................................................................................................................... 10 %

Independent Linearity .................................................................................................................................................................................±2 %

Effective Electrical Angle ....................................................................................................................................................................240 ° ± 5 °

Output Smoothness ............................................................................................................................................................... 0.15 % maximum

Dielectric Withstanding Voltage (MIL-STD-202, Method 301)

Sea Level ......................................................................................................................................................................1,500 VAC minimum

70,000 Feet ......................................................................................................................................................................500 VAC minimum

Insulation Resistance (500 VDC) ...............................................................................................................................1,000 megohms minimum

Power Rating (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)

+70 °C Single Section Assembly .........................................................................................................................................................1 watt

+70 °C Multiple Section Assembly ......................................................................................................................................0.5 watt/section

+125 °C ................................................................................................................................................................................................0 watt

Theoretical Resolution ............................................................................................................................................................ Essentially infinite

Environmental Characteristics

Operating Temperature Range ......................................................................................................................................................-40 °C to +125 °C

Storage Temperature Range..........................................................................................................................................................-55 °C to +125 °C

Temperature Coefficient Over Storage

Temperature Range..........................................................................................................................................................................±1,000 ppm/°C

Vibration (Single Section) ....................................................................................................................................................................................15 G

Total Resistance Shift..................................................................................................................................................................±2 % maximum

Voltage Ratio Shift.......................................................................................................................................................................±5 % maximum

Shock (Single Section) ........................................................................................................................................................................................30 G

Total Resistance Shift..................................................................................................................................................................±2 % maximum

Voltage Ratio Shift.......................................................................................................................................................................±5 % maximum

Load Life ................................................................................................................................................................................................. 1,000 hours

Total Resistance Shift................................................................................................................................................................±10 % maximum

Rotational Life (No Load) ................................................................................................................................................................ 1,000,000 cycles

Total Resistance Shift........................................................................................................................................................±15 % TRS maximum

Moisture Resistance (MIL-STD-202, Method 103, Condition B)

Total Resistance Shift........................................................................................................................................................±10 % TRS maximum

Insulation Resistance (500 VDC)................................................................................................................................... 100 megohms minimum

IP Rating........................................................................................................... IP40 (potentiometer body); IP65 (shaft and bushing interface only)

Moisture Sensitivity Level .........................................................................................................................................................................................1

ESD Classification (HBM) .....................................................................................................................................................................................N/A

Mechanical Characteristics

Stop Strength (A & R Bushings)............................................................................................................................................... 45.19 N-cm (4 lb.-in.)

(C & U Bushings) .............................................................................................................................................. 33.89 N-cm (3 lb.-in.)

Mechanical Angle........................................................................................................................................................................................300 ° ±5 °

Torque

Starting ..................................................................................................................................................0.3 max. above average running torque

Running Torque

Single or Dual Section (A & R Bushings) ..............................................................................................0.21 to 1.06 N-cm (0.3 to 1.5 oz.-in.)

Single or Dual Section (C & U Bushings) ..............................................................................................0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)

Mounting ................................................................................................................................................... 1.7-2.0 N-m (15-18 lb.-in.) maximum

Variation............................................................................................................................. 0.35 N-cm (0.5 oz.-in.) maximum in 45 ° shaft travel

Weight (Single Section, Metal Bushing)......................................................................................................................................12.7 grams nominal

(Each Additional Section) ...........................................................................................................................................................4 grams nominal

Terminals ....................................................................................................................................... Printed circuit terminals, J-Hooks or solder lugs

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, date code, resistance, manufacturer’s part number

Ganging (Multiple Section Potentiometers)....................................................................................................................................2 cups maximum

Hardware ......................... One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.

NOTE: Performance specifications do not apply to units subjected to printed circuit board cleaning procedures.

At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Specifications 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 specific applications.

Model 91, 92, 93 & 95 - Long Life Series

Product Dimensions

MOUNTING

SURFACE

12.70 ± .229

(.500 ± .009)

0.79 ± .025

(.031 ± .010)

22.86 ± 0.43

(.900 ± .017)

DIA.

13.72 ± 0.38

(.540 ± .015)

1.37 ± 0.08

(.054 ± .003)

2.36 ± 0.08

(.093 ± .003)

15.88

(.625)

7.92

(.312)

.79

(.031) 2 PLCS.

3 2 1

.254

(.010)

GAP

5.08

(.20)

SEE

HOW TO ORDER

CHART FOR

BUSHING OPTIONS.

10.16 ± 0.30

(.400 ± .012)

1.19

(.047)

“A” STYLE

A.R. LUG

9.53

(.375)

15.29 ± 0.56

(.602 ± .022)

1.52

(.06)

11.05 ± 0.20

(.435 ± .008)

SEE

FOR SHAFT

OPTIONS.

2.54

(.100)

2.54

(.100)

0.81 ± 0.05

(.032 ± .002)

22.86 ± 0.43

(.900 ± .017)

MOUNTING

SURFACE

12.70 ± .229

(.500 ± .009)

0.79 ± .025

(.031 ± .010)

DIA.

13.72 ± 0.38

(.540 ± .015)

1.37 ± 0.08

(.054 ± .003)

2.36 ± 0.08

(.093 ± .003)

15.88

(.625)

7.92

(.312)

120 ° ± 5 ° STD.

FLAT ORIENTATION

(SHAFT AT CCW END)

CCW

POTENTIOMETER

DIA.

0.81 ± 0.05

(.032 ± .002)

10.16 ± 0.30

(.400 ± .012)

SEE

HOW TO ORDER

CHART FOR

BUSHING OPTIONS.

5.08 ± 0.38

(.200 ± .015)

11.05 ± 0.20

(.435 ± .008)

SEE

FOR SHAFT

OPTIONS.

1.19

(.047)

“A” STYLE

A.R. LUG

9.53

(.375)

12.7 ± 1.02

(.500 ± .040)

2.54

(.100)

2.54

(.100)

0.81 ± 0.05

(.032 ± .002)

5.08 ± 1.02

(.200 ± .040)

4.45 ± .38

(.175 ± .015)

10.16

(.40)

5.59 ± .20

(.220 ± .008)

4.45 ± .38

(.175 ± .015)

2.54

(.100)

2.54

(.100)

2.03

(.080)

3 PLCS.

.41

(.016)

2.29

1.02

(.040) WIDE X (.090) LONG

3 PLCS.

.381

TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.015 )FRACTION ± 1/64

9.65

.XX ±

ANGLE ±5 °

(.38)

Specifications 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 specific applications.

Model 91, 92, 93 & 95 - Long Life Series

Product Dimensions

SHAFT TYPE "E"

(USES BUSHING C)

0.79 ± 0.25

(.031 ± .010)

0.79

(.031)

STD. LENGTHS:

12.0

(.500)

16.0

(.625)

19.0

(.750)

SHAFT TYPE "G"

(USES BUSHING A)

1.60+.38/-.00

(.063+.015/-.000)

6.32+.010/-.025

(.2490+.0004/.0010)

DIA.

1.194

(.047)

12.70

(.500)

STD. LENGTHS:

15.88

19.05

(.625) (.750)

22.23

(.875)

SHAFT TYPE "H"

(USES BUSHING A)

“F” ± .38

(“F” ± .015)

6.32+.010/-.025

(.2490+.0004/.0010)

DIA

5.486 ± .051

(.216 ± .002)

STD. LENGTHS:

19.05

(.750)

22.23

(.875)

FLAT LENGTH “F”:

7.95

(.313)

11.13

(.438)

3.16

(.1245)

DIA

SHAFT TYPE "J"

(USES BUSHING R)

1.80 ± 0.25

(.071 ± .010)

6.00+.000/-.035

(.2362+.0000/.0010)

DIA

STD. LENGTHS:

16.0

(.630)

22.0

(.866)

TOLERANCES EXCEPT AS SHOWN: .XX = ±

1.00 ± 0.13

(.039 ± .054)

.02

(.050)

.005

.XXX = ±

(.127)

.0005

.XXXX = ±

(.0127)

DIMENSIONS:

(INCHES)

How to Order

Part number for multiple section potentiometers must have

a taper and resistance value for each section.

# SECTIONS

1 Single

2 Dual

ANTI-ROTATION LUG

Single .305 ” (7.8 mm) R,

90 °CW

No Lug

SHAFT

LENGTH

(FMS)

Code Description

1/2 ” L

5/8 ” L

3/4 ” L

7/8 ”L

1”L

16 mm L

22 mm L

METRIC

AVAILABLE

ONLY IN

BUSHING

Code

A, C

ELEMENT TAPER

TYPE/TOLERANCE

Long Life Linear C-P

±10 %

RoHS IDENTIFIER

Compliant

BUSHING

Metal Plain 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) L

Metal Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L

Metal Plain 10 mm D x 9 mm L

RESISTANCE CODE

VALUE IN OHMS

(10) - 1 K

(13) - 5 K

(15) - 10 K

MODEL

Single-Turn, In-Line PC Pins

Single-Turn, In-Line J-Hooks

Single-Turn, L-Pattern PC Pins

Single-Turn, Triangle-Pattern Solder Lugs

SHAFT TYPE

Metal Single Slotted 1/8 " (3.18 mm) D

Metal Single Slotted 1/4 " (6.35 mm) D

Metal Single Flatted 1/4 " (6.35 mm) D

Metal Single Slotted 6 mm D

AVAILABLE ONLY IN

LENGTHS

BUSHINGS

(CODE)

16, 20, 24

16, 20, 24, 28

24, 28

Metric 16, 22

Boldface

features are Bourns standard options.

All others are available with higher minimum order quantities.

REV. 04/18

Specifications 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 specific applications.

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