How to Order Model 97 & 99 Panel Controls
REV. 05/13
9 9 A 2 A - B 2 8 - A 1 5 / R51 L
A Single .305 ” (7.8 mm) R,
90 °CW
D No Lug
ANTI-ROTATION LUG
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
BUSHING
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 %
Boldface features are Bourns standard options.
All others are available with higher minimum order
quantities.
MODEL
97 Single-Turn, L-Pattern PC Pins w/Switch
99 Single-Turn, Triangle-Pattern
Solder Lugs w/Switch
SWITCH TYPE
(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
(R57) DPST N.O./N.C. CCW Detent Horz Term
(R59) DPST N.O./N.O. CCW Detent Horz Term
# SECTIONS
2 Dual 2nd Section is a Switch
RoHS IDENTIFIER
CompliantL
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
22 22 mmL R
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 Metric16, 22 R
S Metal Single Flatted 6 mm D Metric 16, 22 R
V Metal Single Slotted 4 mm D Metric 16, 22 U
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.
