Linear ...................................................................................................1 K ohms to 1 megohm ......................... 150 ohms to 1 megohm
Audio ....................................................................................................1 K ohms to 1 megohm ......................... 1 K ohms to 1 megohm
Total Resistance Tolerance
Linear Tapers ........................................................................................±10 % or ±20 % .................................... ±10 % or ±5 %
Audio Tapers ........................................................................................±10 % or ±20 % .................................... ±10 %
Absolute Minimum Resistance ...................................................................2 ohms maximum .................................. 2 ohms maximum
Operating Temperature Range ...................................................................+1 °C to +125 °C ................................... +1 °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
Total Resistance Shift ...........................................................................±10 % TRS maximum ........................... ±5 % TRS maximum
Rotational Life (No Load) ............................................................................50,000 cycles ........................................ 25,000 cycles
Total Resistance Shift ...........................................................................±10 % TRS maximum ........................... ±10 % TRS maximum
Mounting (Torque on Bushing) .......................................................................................................................... 1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum
Terminals ................................................................................................................................................................................................... PC pin or solder lug
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.
Part can be wave soldered at 260 °C (500 °F) for 5 seconds, no wash process with no clean flux.
Marking.................................................................................................................. Manufacturer’s trademark, part number, resistance value and date code.
Hardware ...........................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.
1
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
** Additional sections available on special request with higher minimum order quantities.
*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.
51/53 - Sealed 1/2 ” (12.5 mm) Square Control
Product Dimensions
PACKAGE DIMENSIONS
16.51 ± 0.25
(.650 ± .010)
8.89 ± 0.18
(.350 ± .007)
.64
"L"
( .025)
MODEL 51
6.35
(.250)
12.5
(.492)
11.00
DIA.
(.432)
6.25
(.246)
7.00
(.275)
0.74
(.029)
0.30
(.0118)
7.62
(.300)
FMS
5.08
(.200)
1.32
(.052)
TYP.
2.54
(.100)
C OF POT
L
7.62 ± 0.30
(.300 ± .012)
5.08 ± 0.30
(.200 ± .012)
3X
.66 ± .05
(.026 ± .002)
6.60 ±0.38
(.260 ± .015)
2.54
(.100)
2.54
(.100)
1.27
(.050)
DIA.
4 PLCS.
1.02
(.040)
DIA.
6 PLCS.
(DOUBLE MODULE FRONT AND REAR BRACKET SHOWN)
(SINGLE AND DUAL MODULE SHOWN)
2.54
TERMINAL SPACING
(.100)
PACKAGE DIMENSIONS PCB MOUNTING BRACKET
12.5
(.492)
11.00
DIA.
(.432)
0.74
(.029)
1.32 ± 0.25
(.052 ± .010)
2X
5.08 ± 0.30
(.200 ± .012)
7.62 ± 0.30
(.300 ± .012)
2X
SOLDER LUG TERMINALS
MODEL 53
6.25
(.246)
7.00
(.275)
2.40
(.094)
3
2
1
.64
"L"
( .025)
5.0 ± 0.51
(.197 ± .020)
0.90
(.036)
.41 ± .05
( .016 ± .002)
5.08
(.200)
2.54
(.100)
6.60 ±0.38
(.260 ± .015)
5.08
(.200)
2X
1.80
(.071)
4.70
(.185)
0.91 ± .051
(.036 ± .002)
6.35 ± .25
(.250 ± .010)
ELECTRICAL SCHEMATIC
CCW
1
2
3
CW
ANTI-ROTATION LUG
(Style "A" Shown)
0.80 ± 0.30
(.031 ± .012)
0.41
(.016)
1.52
(.060)
5.70
(.224)
SHAFT FLAT
ORIENTATION
SUGGESTED PANEL LAYOUT
6.20
(.244)
2.26
DIA.
(.089)
BUSHING DIAMETER
TOLERANCE
+0.25
( +.010)
.25
FOR TOLERANCES SHOWN: .XX = ± (.010)
.XXX = ± .13
(.005)
SHAFT DIMENSIONS ± .80
(1/32)
132 ° ± 5 °
CCW END
DIMENSIONS:
MM
(INCHES)
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.
51/53 - Sealed 1/2 ” (12.5 mm) Square Control
Shaft/Bushing Styles
9.53
(.375)
1.60 ± 0.25
OPT.
(.063 ± .010)
How To Order
A Style Bushing
STD. LENGTH ‘L’
.500
(12.7)
.625
(15.88)
.750
(19.05)
.875
(22.23)
1.000
(25.4)
51
A
A
D
-
B
28
-
A
15
/
A15
L
3/8-32UNEF-2A
6.35
9.53
SHAFT
BUSHING
(.250)
(.375)
1.194 ± 0.10
OPT.
(.047 ± .004)
Part number for multiple
section potentiometers
must have a taper
and resistance value
for each section.
RoHS IDENTIFIER
L
Compliant
6.35
(.250)
0.79 ± 0.25
OPT.
(.031 ± .010)
1/4-32UNEF-2A
3.18
6.35
SHAFT
BUSHING
(.125)
(.250)
9.53
(.375)
0.79 ± 0.10
OPT.
(.031 ± .004)
C Style Bushing
STD. LENGTH ‘L’
.375
(9.53)
.500
(12.7)
.625
(15.88)
.750
(19.05)
.875
(22.23)
1.000
(25.4)
MAX. FLAT LENGTH
1.52 ± 0.25
OPT.
(.060 ± .010)
15.88
(.625)
3/8-32UNEF-2A
6.35
9.53
SHAFT
BUSHING
(.250)
(.375)
5.49 ± 0.10
OPT.
(.216 ± .005)
A Style Bushing -
Flatted Shaft
STD. LENGTH ‘L’
.625
(15.88)
.750
(19.05)
.875
(22.23)
1.000
(25.4)
MOUNTING BRACKET/
ANTI-ROTATION LUG
Code Description
AR Lug 90 °CW
A
No AR Lug or Bracket
D
Front Bracket
L
Rear Bracket
M
Front and Rear Bracket
N
ELEMENT TAPER
TYPE/TOLERANCE
Code Description
(A)
Linear Cermet ±10 %
(H)
Linear Cermet ±5 %
# SECTIONS/DETENTS
Code Description
Single No Detent
A
Double No Detent
B
Single w/Center Detent
E
Double w/Center Detent
F
(B)
(E)
Linear C-P ±20 %
Linear C-P ±10 %
(C)
(F)
8.0
(.315)
1.52 ± 0.25
(.060 ± .010)
0.79 ± 0.10
(.031 ± .004)
S Style Bushing
STD. LENGTH ‘L’
.630
(16.0)
.866
(22.0)
.984
(25.0)
CW Audio Cermet
±10 %
CCW Audio Cermet
±10 %
CW Audio C-P ±20 %
CW Audio C-P ±10 %
M6 X .075-6g
3.0
6.0
SHAFT
BUSHING
(.118)
(2.36)
BUSHING CONFIGURATION
Code Description
3/8 ” D x 3/8 ” L
A
1/4 ” D x 1/4 ” L
C
10 mm D x 9.5 mm L
R
6 mm D x 8 mm L
S
7 mm D x 8 mm L
U
(D)
(S)
(G)
(T)
CCW Audio C-P
±20 %
CCW Audio C-P
±10 %
CW Dual Audio
Taper C-P ±20 %
8.0
(.315)
1.52 ± 0.25
(.060 ± .010)
0.79 ± 0.10
(.031 ± .004)
M7 X .075-6g
4.0
7.0
SHAFT
BUSHING
(.157)
(2.75)
U Style Bushing
STD. LENGTH ‘L’
.630
(16.0)
.866
(22.0)
.984
(25.0)
MODEL
Code Description
51 PC Pins (.100 ” centers)
53 Solder Lugs
(Y)
RESISTANCE
(CODE)
VALUE IN OHMS
(28) — 150
(14) — 7.5 K
(06) — 200
(15) — 10 K
(07) — 250
(30) — 15 K
(08) — 500
(16) — 20 K
(09) — 750
(17) — 25 K
(10) — 1 K
(18) — 50 K
(29) — 1.5 K (19) — 75 K
(11) — 2 K
(20) — 100 K
(12) — 2.5 K (23) — 500 K
(13) — 5 K
(25) — 1 M
(10) — 1 K
(18) — 50 K
(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
(10) — 1 K
(18) — 50 K
(12) — 2.5 K (20) — 100 K
(13) — 5 K
(23) — 500 K
(15) — 10 K (25) — 1 M
(17) — 25 K
(10) — 1 K
(18) — 50 K
(12) — 2.5 K
(20) — 100 K
(13) — 5 K
(22) — 250 K
(15) — 10 K
(23) — 500 K
(17) — 25 K (25) — 1 M
(10) — 1 K
(18) — 50 K
(12) — 2.5 K (20) — 100 K
(13) — 5 K
(22) — 250 K
(15) — 10 K (23) — 500 K
(17) — 25 K (25) — 1 M
(10) — 1 K
(18) — 50 K
(12) — 2.5 K (20) — 100 K
(13) — 5 K
(22) — 250 K
(15) — 10 K (23) — 500 K
(17) — 25 K (25) — 1 M
9.5
(.374)
1.80 ± 0.25
(.071 ± .010)
R Style Bushing
STD. LENGTH ‘L’
.630
(16.0)
.866
(22.0)
.984
(25.0)
1.00 ± 0.10
(.039 ± .004)
M10 X 0.75-6g
6.0
10.0
SHAFT
BUSHING
(.236)
(.394)
Code
B
C
E
R
T
U
AVAILABLE ONLY IN
SHAFT TYPE
BUSHINGS
LENGTHS
Description
Code
Description
Single Slotted 1/4 ”D
A
24,28
Single Flatted 1/4 ”D
A
20,24,28,32
Single Slotted 1/8 ”D
C
12,16,20,24,28
Single Slotted 6 mmD
R
16,22,25
Single Slotted 4 mmD
U
16,22,25
Single Slotted 3 mmD
S
16,22,25
SHAFT
LENGTH
(FMS)
Code Description
12
3/8 ”
16
1/2 ”
20
5/8 ”
24
3/4 ”
28
7/8 ”
32
1”
Metric
16
16 mm
22
22 mm
25
25 mm
AVAILABLE
ONLY IN
BUSHING
Code
C
A, C
A, C
A, C
A, C
A, C
R, S, U
R, S, U
R, S, U
DIMENSIONS:
MM
(INCHES)
Boldface features are Bourns standard options. All others are available with higher
minimum order quantities.
REV. 05/13
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.
