Model 91, 92, 93, 94 & 95 - 5/8 ” Square Single-Turn Panel Control
Features
■ Available in a variety of pin-out
confi gurations
■ Virtually infi nite electrical circuit isolation
■ Metal or plastic shaft options
■ RoHS compliant*
*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 ...............................10 % or 20 % .................................................... 5% or 10%
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 (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 tapers) 10 ohms or ±15 % TRS max. ...... (All tapers) ±5 % TRS max.
(whichever is greater)
(Audio tapers) ±20 % maximum
Contact Resistance Variation
@ 50,000 cycles ........................................... (Linear tapers) ±2 % ............................................. ±2 %
(Audio tapers) ±3 % ............................................. ±3 %
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift ................................... (Linear tapers) ±10 % TRS maximum .................(All tapers) ±5 % TRS maximum
(Audio tapers) ±20 % TRS maximum
Insulation Resistance (500 VDC) .................. 100 megohms minimum ......................................100 megohms minimum
IP Rating ............................................................ IP 40 .....................................................................IP 40
*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.
Mechanical Characteristics1
Stop Strength (1/4 ” D shaft) .............................................................................................................................................45.19 N-cm (4 lb.-in.)
(1/8 ” D shaft) .............................................................................................................................................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 fl ux.
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 specifi cations do not apply to units subjected to printed circuit board cleaning procedures.
1 At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
Model 91, 92, 93, 94 & 95 - 5/8 ” Square Single-Turn Panel Control
Model 91, 92, 93, 94 & 95 - 5/8 ” Square Single-Turn Panel Control
Product Dimensions
Model 91 PC Pin Terminals, In-Line
Model 93 PC Pin Terminals, "L" Pattern
.41
(.016)
Model 95 Solder Lug Terminals, "Triangular" Pattern
10.16
(.40)
4.45 ± .38
(.175 ± .015)
5.59 ± .20
(.220 ± .008)
4.45 ± .38
(.175 ± .015)
2.54
(.100) 2.54
(.100)
5.08 ± 1.02
(.200 ± .040)
2.03
(.080)
3 PLCS.
(.040) WIDE X (.090) LONG
3 PLCS.
1.02 2.29
31
2
2
13
5.08
(.20)
Model 92 J-Hooked
Terminals, In-Line
Model 94 J-Hooked
Terminals, "L" Pattern
1.52
(.06)
.254
(.010)
GAP
.79
(.031) 2 PLCS.
321
5.33 ± .76
(.21 ± .03)
1.52
(.06)
GAP
.81
(.032)
R. MAX.
3.81
(.150)
MAX. TYP.
321
120 ° ± 5 ° STD.
FLAT ORIENTATION
(SHAFT AT CCW END)
13
CCW
2
POTENTIOMETER
Shaft Flat Orientation
DIA.
13.72 ± 0.38
(.540 ± .015)
15.88
(.625)
22.86 ± 0.43
(.900 ± .017) 12.70 ± .229
(.500 ± .009)
MOUNTING
SURFACE
0.76 ± 0.05
(.030 ± .002)
TYP.
2.54
(.100)
2.54
(.100)
0.79 ± .025
(.031 ± .010)
1.19
(.047)
“A” STYLE
A.R. LUG
R
1.37 ± 0.08
(.054 ± .003)
2.36 ± 0.08
(.093 ± .003)
7.92
(.312)
9.53
(.375)
15.29 ± 0.56
(.602 ± .022)
SEE
HOW TO ORDER
CHART FOR
BUSHING OPTIONS.
SEE
NEXT PAGE
FOR SHAFT
OPTIONS.
10.16 ± 0.30
(.400 ± .012)
33
22
11
R2 R1
11.05 ± 0.20
(.435 ± .008)
DIA.
13.72 ± 0.38
(.540 ± .015)
15.88
(.625)
22.86 ± 0.43
(.900 ± .017)
12.70 ± .229
(.500 ± .009)
MOUNTING
SURFACE
0.76 ± 0.05
(.030 ± .002)
TYP.
2.54
(.100)
2.54
(.100)
0.79 ± .025
(.031 ± .010)
1.19
(.047)
“A” STYLE
A.R. LUG
R
1.37 ± 0.08
(.054 ± .003)
2.36 ± 0.08
(.093 ± .003)
7.92
(.312)
9.53
(.375)
12.7 ± 1.02
(.500 ± .040)
SEE
HOW TO ORDER
CHART FOR
BUSHING OPTIONS.
SEE
NEXT PAGE
FOR SHAFT
OPTIONS.
10.16 ± 0.30
(.400 ± .012)
33
22
11
R2 R1
11.05 ± 0.20
(.435 ± .008)
0.81
(.032)
DIA.
TYP. 5.08 ± 0.38
(.200 ± .015)
TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.015 )FRACTION ± 1/64
.XX ± (.38) ANGLE ±5 °
.381
9.65
L
L
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.
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.
Model 91, 92, 93, 94 & 95 - 5/8 ” Square Single-Turn Panel Control
Product Dimensions
Plastic
Shaft
Styles 1.60+.38/-.00
(.063+.015/-.000)
11.18 ± .38
(.440 ± .015)
1.60+.38/-.00
(.063+.015/-.000)
1.80 ± 0.25
(.071 ± .010) 1.50 ± 0.25
(.059 ± .010)
“F” ± .38
(“F” ± .015)
6.32+.000/-.152
(.249+.000/.006)
DIA.
6.30+.000/-.152
(.248+.000/.006)
DIA.
5.49
(.216)
6.32+.010/-.025
(.2490+.0004/.0010)
DIA.
1.194
(.047)
5.486 ± .051
(.216 ± .002)
1.19
(.047)
6.31+.025/-.051
(.2485+.001/.002)
DIA.
14.27 ± .25
(.562 ± .010)
1.80 ± .25
(0.07 ± .001)
1.00
(.04)
1.50 ± .25
(0.06 ± .001)
3.16+.00/-.15
(.1245+.000/-.006)DIA.
48 TOOTH
5.994 +0.000/-0.051
(.236 +.000/-.002)
DIA.
DIA.
3.988 +0.000/-0.051
(.157 +.000/-.002)
SHAFT TYPE "B" (USES BUSHING A) SHAFT TYPE "D" (USES BUSHING C) SHAFT TYPE "T" (USES BUSHING U)
SHAFT TYPE "C" (USES BUSHING A) SHAFT TYPE "R" (USES BUSHING R) SHAFT TYPE "W" (USES BUSHING A)
SHAFT TYPE "A" (USES BUSHING A) SHAFT TYPE "H" (USES BUSHING A)
SHAFT TYPE "V" (USES BUSHING U)
SHAFT TYPE "G" (USES BUSHING A)
SHAFT TYPE "J" (USES BUSHING R)
TOLERANCES EXCEPT AS SHOWN: .XX = ±
.79
(0.03)
STD. LENGTHS:
25.40
(1.00)
.02
(.050)
.XXX = ± .005
(.127)
.XXXX = ± .0005
(.0127)
6.32+.010/-.025
(.2490+.0004/.0010)
DIA
6.32+.010/-.025
(.2490+.0004/.0010)
DIA
1.00 ± 0.13
(.039 ± .054)
6.00+.000/-.035
(.2362+.0000/.0010)
DIA
12.70
(.500)
15.88
(.625)
19.05
(.750)
22.23
(.875)
25.4
(1.000)
16.0
(.630)
22.0
(.866)
Metal
Shaft
Styles
0.79 ± 0.13
(.031 ± .054)
3.99+.000/-.035
(.1571+.0000/.0010)
DIA
STD. LENGTHS:
STD. LENGTHS:
STD. LENGTHS:
12.70
(.500)
15.88
(.625)
19.05
(.750)
22.23
(.875)
STD. LENGTHS:
19.05
(.750)
22.23
(.875)
12.70
(.500)
15.88
(.625)
19.05
(.750)
STD. LENGTHS:
12.70
(.500)
15.88
(.625)
19.05
(.750)
22.23
(.875)
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
STD. LENGTHS:
STD. LENGTHS:
19.05
(.750)
22.23
(.875)
“F” ± .381
(“F” ± .015)
3.988 ± .076
(.157 ± .003)
SHAFT TYPE "S" (USES BUSHING R)
6.000+.000/-.035
(.2362+.0000/.0014)
DIA
0.79 ± 0.25
(.031 ± .010)
SHAFT TYPE "E" (USES BUSHING C)
0.79
(.031)
3.16
(.1245)
DIA
12.0
(.500)
16.0
(.625)
19.0
(.750)
STD. LENGTHS:
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
STD. LENGTHS:
16.0
(.630)
22.0
(.866)
7.95
(.313)
11.13
(.438)
FLAT LENGTH “F”:
6.99
(.275)
12.98
(.511)
FLAT LENGTH “F”:
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.
How to Order Model 91, 92, 93, 94 & 95 Panel Controls
REV. 05/13
9 1 A 2 A - A 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 (20) - 100 K
(10) - 1 K (21) - 200 K
(11) - 2 K (22) - 250 K
(12) - 2.5 K (23) - 500 K
(13) - 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)
B Plastic Single Slotted 1/4 " (6.35 mm) D 16, 20, 24, 28 A
C Plastic Single Flatted 1/4" (6.35 mm) D 24, 28 A
D Plastic Single Plain 1/8" (3.18 mm) D 16, 20, 24 C
R Plastic Single Slotted 6 mm D Metric 16, 22 R
T Plastic Single Slotted 4 mm D Metric 16, 22 U
W Plastic Single Knurled 1/4" (6.35 mm) D 32 A
A Metal Single Plain 1/4" (6.35 mm) D 16, 20, 24 A
E Metal Single Slotted 1/8" (3.18 mm) D 16, 20, 24 C
G Metal Single Slotted 1/4" (6.35 mm) D 16, 20, 24, 28 A
H Metal Single Flatted 1/4" (6.35 mm) D 24, 28 A
J Metal Single Slotted 6 mm D Metric 16, 22 R
S Metal Single Flatted 6 mm D Metric 16, 22 R
V Metal Single Slotted 4 mm D Metric 16, 22 U
A Metal Plain 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) L
C Metal Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L
R Metal Plain 10 mm D x 9 mm L
U Metal Plain 7 mm D x 9 mm L
MODEL
91 Single-Turn, In-Line PC Pins
92 Single-Turn, In-Line J-Hooks
93 Single-Turn, L-Pattern PC Pins
94 Single-Turn, L-Pattern J-Hooks
95 Single-Turn, Triangle-Pattern Solder Lugs
# SECTIONS
1 Single
2 Dual
BUSHING
A Single .305 ” (7.8 mm) R,
90 °CW
D No Lug
ANTI-ROTATION LUG
RoHS IDENTIFIER
CompliantL
Part number for multiple section potentiometers must have
a taper and resistance value for each section.
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
16 1/2 ”L A, C
20 5/8 ”L A, C
24 3/4 ”L A, C
28 7/8 ”L A
32 1 ”L A
METRIC
16 16 mmL R, U
22 22 mmL R, U
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bourns:
91A1D-B28-D25 91A1D-B28-T10 91C1D-D20-T23 93R1A-R22-B15 91C1D-D20-D18 91A1D-C28-D15 95R1A-
R16-G20 91A1A-B28-D25 91C1A-D20-D25 91A1A-B28-D23 91C1A-D20-D20 91A1A-C28-D22 91A1A-B28-D22
91A1A-B28-H15 95A1D-C24-C15 95C1A-D16-A20 95A1D-W32-H15 93A1D-B20-A18 93A1D-B20-A15 93A1D-B20-
A10 93A1D-B20-A17 93A1D-B20-A12 93A1D-B20-A13 93A1D-B20-A11 93R1A-R19-A22 95C1D-D24-T18 91A1A-
B20-D20 91A1A-B20-D15 91C1A-D24-D20 91U1A-T22-C13 95A1D-C28-H15 95A1D-C28-H10 91A1D-B24-B13
91A1D-B24-B10 91A1D-B24-B15 91A1D-B24-B18 95A1D-B20-A13 95A1A-B24-B20 95A1A-B24-B15 91A1A-B28-
G15 91A1A-B28-G18 91A1D-B20-B15 91A1D-B20-B10 91A1D-B20-B20 91U1D-T22-H15 91U1A-T22-B25 91U1A-
T22-B20 91U1A-T22-B22 91U1A-T22-B12 91U1A-T22-B10 91A1D-B20-H10 91U1A-T22-B13 91U1A-T22-B15
91U1A-T22-B17 91U1A-T22-B23 95C1D-D16-A16 91A1A-B24-D20 91A1A-B24-D25 91A1A-B24-D23 93A1A-B28-
E12 91A1A-B20-B15 91U1A-T16-A15 93A1D-B24-A05 91A1A-B20-B18 91A1A-B20-B13 91U1A-T16-A20 91A1A-
B20-B10 91C1D-D16-A08 95C1C-D24-A10 95C1C-D24-A22 95C1C-D24-A20 95C1C-D24-A18 93R1A-R16-H13
95C1C-D24-A12 95C1C-D24-A13 95C1C-D24-A17 95C1C-D24-A23 95C1C-D24-A25 95C1C-D24-A11 95C1C-D24-
A15 91A1A-C28-C15 91A1A-B28-C10 93R1A-R22-A05 93R1A-R22-A07 95R1A-R16-B15 93R1A-R22-A12 93R1A-
R22-A10 93R1A-R22-A13 93R1A-R22-A17 91A1A-B16-G15 93C1A-D24-B25 93R1A-R22-A08 93R1A-R22-A23
93R1A-R22-A22 93R1A-R22-A25 91R1A-R16-A23 91R1A-R16-A20 91R1A-R16-A26 91R1A-R16-A13 91R1A-R16-
A15
