81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
How To Order
Models 81 & 82: Part number for multiple section
potentiometers must have a taper and resistance value for
each section.
8 1
8 5
A
A
2
2
A
A
-
-
B
B
2 8
2 8
-
-
A
A
1 5
1 5
/
/
A15
R51
L
L
Models 85 & 86: Part number must contain a switch type.
RoHS IDENTIFIER
ANTI-ROTATION LUG
Single .3ꢀ5 R, 9ꢀ °CW
L
Compliant
A
B
C
D
E
F
Blank Non-Compliant
Double .305 R, 90 ° & 270 °CW
Single .305 R, 270 °CW
No Lug
Single .531 R, 90 °CW
Single .305 R, 180 °CW
Single .375 R, 90 °CW
Double .375 R, 90 ° & 270 °CW
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
(R54) DPST N.C./N.C. CW Detent In-Line Term
(R55) DPST N.C./N.C. 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
(R60) DPST N.C./N.C. CW Detent Horz Term
(R61) DPST N.C./N.C. CCW Detent Horz Term
(R70) DPDT CW Detent In-Line Term
J
K
# SECTIONS APPLICABLE MODELS
1
2
3
4
Single
Double
Triple
81,82
81,82,85,86
81,82,85,86
81,82,85,86
SHAFT
LENGTH
(FMS)
AVAILABLE
ONLY IN
BUSHING
Code
C, N, J
A, C, J, N
A, B, C, E, J, N
A, B, C, E, J, N
A, B, C, E, J, N
A, B, C, E, J, N
A, B, C, E, J, N
A, B, C, E, J, N
Quad
(R71) DPDT CCW Detent In-Line Term
Code Description
(R72) DPDT CW Detent Horz Term
BUSHING
12
16
20
24
28
32
36
40
3/8 ” L
1/2 ” L
5/8 ” L
3/4 ” L
7/8 ” L
1 ” L
(R73) DPDT CCW Detent Horz Term
A
B
C
E
Plain 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) L
Locking 3/8 ” (9.53 mm) D x 1/2 ” (12.7 mm) L
Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L
Locking 1/4 ” (6.35 mm) D x 1/2 ” (12.7 mm) L
Plain 3/8 ” (9.53 mm) D x 1/4 ” (6.35 mm) L
Plain 1/4 ” (6.35 mm) D x 3/8 ” (9.53 mm) L
Plain 1ꢀ mm D x 9 mm L
J
1-1/8 ” L
1-1/4 ” L
N
R
S
U
Metric
ELEMENT TAPER
TYPE/TOLERANCE
(A)
RESISTANCE CODE
VALUE IN OHMS
Locking 10 mm D x 12.5 mm L
Plain 7 mm D x 6 mm L
10
13
16
19
22
30
42
50
10 mmL
13 mmL
16 mmL
19 mmL
22 mmL
30 mmL
42 mmL
50 mmL
U
U
Linear Cermet 1ꢀ ꢁ
Linear Cermet 5 ꢀ
(05) - 100
(28) - 150
(06) - 200
(07) - 250
(08) - 500
(09) - 750
(1ꢀ) - 1 K
(30) - 15 K
(16) - 20 K
(17) - 25 K
(18) - 5ꢀ K
(19) - 75 K
(2ꢀ) - 1ꢀꢀ K
(31) - 150 K
R, S
R, S
R, S, U
R, S
R, S
R, S
(H)
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
(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
AVAILABLE ONLY IN
LENGTHS BUSHINGS
(CODE)
16,20,24,28
16,2ꢀ,24,28
20,24,28
SHAFT TYPE
(14) - 7.5 K (25) - 1 M
(CODE)
A, B, J
A, B, J
A, B, J
(15) - 1ꢀ K
A
B
C
E
F
Single Plain 1/4 ” (6.35 mm) D
Single Slotted 1/4 ” (6.35 mm) D
Single Flatted 1/4 ” (6.35 mm) D
Single Slotted 1/8 ” (3.18 mm) D
Single Flatted 1/8 ” (3.18 mm) D
Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D
Outer Operates Section 1
Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36
Outer Operates Section 1
Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D
Outer Operates Section 1/2
Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36
Outer Operates Section 1
Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D
Outer Operates Section 1/2/3
Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36
Outer Operates Section 1/2
(B)
(E)
Linear C-P 2ꢀ ꢁ
Linear C-P 10 ꢀ
(1ꢀ) - 1 K
(12) - 2.5 K (2ꢀ) - 1ꢀꢀ K
(13) - 5 K (22) - 250 K
(18) - 5ꢀ K
12,16,2ꢀ,24,28 C, E, N
(15) - 1ꢀ K (23) - 500 K
(16) - 20 K (25) - 1 M
(17) - 25 K
24
C, N
A, J
G
36,40
(C)
(D)
(F)
(G)
(S)
(T)
CW Audio Cermet 10 ꢀ
CW Audio C-P 2ꢀ ꢁ
CCW Audio Cermet 10 ꢀ (13) - 5 K
(1ꢀ) - 1 K
(12) - 2.5 K (2ꢀ) - 1ꢀꢀ K
(22) - 250 K
(18) - 5ꢀ K
K
L
C, N
A, J
C, N
A, J
C, N
CCW Audio C-P 20 ꢀ
CW Audio C-P 10 ꢀ
CCW Audio C-P 10 ꢀ
(15) - 1ꢀ K (23) - 500 K
(17) - 25 K (25) - 1 M
36,40
M
N
P
Boldface features are Bourns standard options.
All others are available with higher minimum order
quantities.
36,40
R
T
V
Single Slotted 6 mm D
Single Slotted 4 mm D
Dual Concentric Plain 6 mm D - 3 mm D
Outer Operates Section 1
16,19,22,5ꢀ
10, 13, 22
30, 42
R, S
U
R
REV. 02/25/11
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications
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