91A2A

91A2A BOURNS | Alldatasheet

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■ Available in a variety of pin-out confi gurations ■ Virtually infi nite electrical circuit isolation ■ Model 96 sealed for board wash ■ Metal or plastic shaft options 91, 92, 93, 94, 95, 96 - 5/8 ” Square Single-Turn Panel Control 97, 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch *RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. Initial Electrical Characteristics1 Conductive Plastic Element Cermet Element Standard Resistance Range Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Power Rating (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less) Environmental Characteristics Temperature Coeffi cient Over Storage (whichever is greater) (Audio tapers) ±20 % maximum Contact Resistance Variation Moisture Resistance (MIL-STD-202, Method 103, Condition B) (Audio tapers) ±20 % TRS maximum Potentiometer Specifi cations *RoHS COMPLIANTVERSIONS AVAILABLE

91, 92, 93, 94, 95, 96 - 5/8 ” Square Single-Turn Panel Control 97, 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. Mechanical Characteristics1 Torque Running Torque Plastic Bushing) 56-79 N-cm (5-7 lb.-in.) maximum Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean fl ux. NOTE: All Model 90 performance specifi cations do not apply to units subjected to printed circuit board cleaning procedures, except for the sealed version (Model 96). 1 At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. Potentiometer Specifi cations Additional Features ■ DPST and DPDT switch options ■ RoHS compliant versions available*

91, 92, 93, 94, 95, 96 - 5/8 ” Square Single-Turn Panel Control 97, 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. Initial Electrical Characteristics1 Contacts: Power Rating (Resistive Load): Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Environmental Characteristics Moisture Resistance (MIL-STD-202, Method 106, Condition B) Mechanical Characteristics NOTE: Model 99 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. Rotary Switch Specifi cations

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. 91, 92, 93, 94, 95, 96, 97, 99 - 5/8 ” Square Single-Turn Product Dimensions SEE DETAIL FOR SHAFT OPTIONS 10.16 (.40) 1 2 3 Model 91 & 96 PC Pin Terminals, In-Line 5.08 (.20) Model 93 PC Pin Terminals, "L" Pattern 3/8 THREADLESS (9.53 mm) (STYLE "D") 3/8-32 UNEF (9.53 mm) (STYLE "A") 1/4-32 UNEF (6.35 mm) (STYLE "C") M10 X 0.75-6g (STYLE "R") M7 X 0.75-6g (STYLE "U") Bushing Styles 10.16 (.40) .41 (.016) Model 95 Solder Lug Terminals, "Triangular" Pattern 1 2 DPST (NO/NC) (TYPES 50, 51, 56, 57) DPST (NC/NC) (TYPES 54, 55, 60, 61) DPST (NO/NO) (TYPES 52, 53, 58, 59) DPDT (NC/NC) (TYPES 70, 71, 72, 73) Switch contacts shown in detent position. 22.86 ± .43 (.90 ± .017) 12.7 (.50) .79 ± .41 (.031 ± .016) 9.53 ± .38 (.375 ± .015) (STYLE A) 6.35 ± .38 (.250 ± .015) (STYLE C) 15.88 ± .38 (.625 + .015) 1.37 (.054) 2.36 (.093) 11.05 ± .20 (.435 ± .008) 15.29 ± .56 (.602 ±.022) (MODEL 91 ONLY) DIA.13.72 (.54) 15.88 ± .38 (.625 ± .015) 9.53 ± .38 (.375 ± .015) .81 (.032) DIA.2.54 (.100) 2.54 (.100) 5.97 ± .38 (.235 ± .015) .81 (.032) DIA. TYP. 10.16 ± .30 (.40 ± .012) 5.08 ± .38 (.20 ± .015) TYP. 11.05 ± .20 (.435 ± .008) 12.7 ± 1.02 (.50 ± .040) 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 TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.015 )FRACTION ± 1/64 .XX ± (.38) ANGLE ±5 ° .128 .005 MOUNTING SURFACE 2654 Model 97 1st Cup Same As Model 93 (2nd Cup - Switch) 2.77 ± .38 (.109 ± .015) 15.88 (.625) REF. 2.54 ± 0.25 (.100 ± .010) 2.41 X 1.14 (.095 ± .045)SLOT 6 PLCS 8.26 ± 0.25 (.325 ± .010) 2.29 (.090)6 PLCS. 2 PLCS. 2.77 ± .38 (.109 ± .015) 16.89 ± .51 (.665 ± .020) 5.08 (.20) 321 321 Model 92 J-Hooked Terminals, In-Line Model 94 J-Hooked Terminals, "L" Pattern 1.52 (.06) .254 (.010) GAP .79 (.031) 2 PLCS. 5.33 ± .76 (.21 ± .03) 1.52 (.06) GAP .81 (.032) R. MAX. 3.81 (.150) MAX. TYP. 1 3 CCW POTENTIOMETER TOTAL ROTATION 300 ° CW DETENT 25 ° MAX. ACTUATION ANGLE (TYPES 50, 52, 54, CCW DETENT 25 ° MAX. ACTUATION ANGLE (TYPES 51, 53, 55, 57, 59, 61, 71, 73) NOTE: Switch terminals shown in vertical position. 120 ° ± 5 ° STD. FLAT ORIENTATION (SHAFT AT CCW END) Switch Module Variations Shaft Flat Orientation MOUNTING SURFACE 2654 2 3 Model 99 1st Cup Same As Model 95 (2nd Cup - Switch) 2.77 ± .38 (.109 ± .015) 15.88 (.625) REF. 24.77 ± .51 (.975 ± .020) 2.41 X 1.14 (.095 ± .045)SLOT 6 PLCS 2.29 (.090)6 PLCS. 2.77 ± .38 (.109 ± .015) 16.89 ± .51 (.665 ± .020) 5.59 ± .38 (.022 ± .015) 4.45 ± .38 (.175 ± .015) DIMENSIONS: MM (INCHES)

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. 91, 92, 93, 94, 95, 96, 97, 99 - 5/8 ” Square Single-Turn Product Dimensions Plastic Shaft Styles 1.60+.38/-.00 (.063+.015/-.000) 11.18 ± .38 (.440 ± .015) 22.23 (.875) 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 DIA. 1.194 (.047) 5.486 ± .051 (.216 ± .002) 1.19 (.047) 6.31+.025/-.051 (.2485+.001/.002) DIA. 14.27 ± .25 (0.07 ± .001) 1.00 (.04) 1.50 ± .25 (0.06 ± .001) 13.16+.00/-.15

48 TOOTH

(.236 +.000/-.002) DIA. DIA. (.157 +.000/-.002) SHAFT TYPE "B" (USES BUSHING A OR D) SHAFT TYPE "D" (USES BUSHING C) SHAFT TYPE "T" (USES BUSHING U) SHAFT TYPE "C" (USES BUSHING A OR D) SHAFT TYPE "R" (USES BUSHING R) SHAFT TYPE "W" (USES BUSHING A OR D) 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) SHAFT TYPE "Y" (USES BUSHING A) TOLERANCES EXCEPT AS SHOWN: .XX = ± .79 (0.03) STD. LENGTHS: 16.00 (.630) 12.00 (.472) 22.00 (.866) 25.40 (1.00) .02 (.050) .XXX = ± .005 (.127) .XXXX = ± .0005 (.0127) 6.32+.010/-.025 DIA 6.32+.010/-.025 DIA 1.00 ± 0.13 (.039 ± .054) 6.00+.000/-.035 DIA 12.70 (.500) 15.88 (.625) 19.05 (.750) 22.23 (.875) 25.4 (1.000) 12.0 (.472) 16.0 (.630) 19.0 (.748) 22.0 (.866) 19.05 (.750) 1.60 (.063) 14.30 (.563) 4.78 (.188) 7.95 (.313) 11.13 (.438) Metal Shaft Styles 0.79 ± 0.13 (.031 ± .054) 3.99+.000/-.035 DIA 8.74 (.344) 9.12 (.359) .762 (.030)1.27 (.050) 1.57 (.062) 5.97 (.235) 21 ° 5.03 ± .05 (.198 ± .002) DIA. DIA. 5.87 (.231) STD. LENGTHS: STD. LENGTHS: STD. LENGTHS: STD. LENGTHS: 12.70 (.500) 15.88 (.625) 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) 25.4 (1.000) STD. LENGTHS: 16.0 (.630) 19.0 (.748) 22.0 (.866) 12.0 (.472) 16.0 (.630) 19.0 (.748) 22.0 (.866) STD. LENGTHS: STD. LENGTHS: STD. LENGTHS:STD. LENGTHS: STD. LENGTHS: 12.70 (.500) 15.88 (.625) 19.05 (.750) 22.23 (.875) 25.4 (1.000) FLAT LENGTH “F”: DIMENSIONS: MM (INCHES)

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. How to Order 90 Series Panel Controls 9 9 A 2 A - B 2 8 - A 1 5 / R51 L 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 (15) - 10 K (B) Linear C-P ±20 % (10) - 1 K (18) - 50 K (15) - 10 K (23) - 500 K (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,D C Plastic Single Flatted 1/4" (6.35 mm) D 24,28 A,D D Plastic Single Plain 1/8" (3.18 mm) D 16,20,24 C R Plastic Single Slotted 6 mm D Metric 16,19,22 R T Plastic Single Slotted 4 mm D Metric 16,19,22 U W Plastic Single Knurled 1/4" (6.35 mm) D 32 A,D A Metal Single Plain 1/4" (6.35 mm) D 16,20,24,28,32 A G Metal Single Slotted 1/4" (6.35 mm) D 16,20,24,28,32 A H Metal Single Flatted 1/4" (6.35 mm) D 16,20,24,28,32 A J Metal Single Slotted 6 mm D Metric 12,16,19,22 R V Metal Single Slotted 4 mm D Metric 12,16,19,22 U Y Metal Single Knurled 1/4" (6.35 mm) D 24 A 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 D Plastic Unthreaded 3/8 ” (9.53 mm) D 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

96 Single-Turn, In-Line PC Pins, Sealed*

97 Single-Turn, L-Pattern PC Pins w/Switch

99 Single-Turn, Triangle-Pattern

*Model 96 is not available in multi-gang versions. SWITCH TYPE (MODELS 97 & 99 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 (R71) DPDT CCW Detent In-Line Term (R72) DPDT CW Detent Horz Term (R73) DPDT CCW Detent Horz Term # SECTIONS APPLICABLE MODELS

1 Single Models 91 Thru 96 Only

2 Dual All Models, 2nd Section is

A Single .305 ” (7.8 mm) R, 90 °CW C Single .305 ” (7.8 mm) R, 270 °CW D No Lug ANTI-ROTATION LUG RoHS IDENTIFIER Compliant Non-Compliant L Blank Models 91 - 96: Part number for multiple section potentiometers must have a taper and resistance value for each section. Models 97 & 99: Part number must contain a switch type. 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, D 20 5/8 ”L A, C, D 24 3/4 ”L A, C, D 28 7/8 ”L A, D 32 1 ”L A, D METRIC 12 12 mmL U 16 16 mmL R, U 19 19 mmL R 22 22 mmL R, U REV. 02/10