81A2A-B28-A15

81A2A-B28-A15 BOURNS | Alldatasheet

Document overview

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Technical content

Features

■ Metal shaft and bushing ■ Consistent, smooth quality feel ■ Up to 4 sections available ■ Rotary switch option designed for “on-off” function control ■ RoHS compliant versions available* Non-RoHS models are currently available, but not recommended for new designs. See Product Obsolescence Memo for details. 81/82 - 5/8 ” Square Single-Turn Panel Control 85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch *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. 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 At 70 °C (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less) Environmental Characteristics1 ±10 % TRS max. (whichever is greater) (Audio taper) ±20 % maximum Contact Resistance Variation @ 50,000 cycles Moisture Resistance (MIL-STD-202, Method 103, Condition B) (D, G, S & T tapers) ±20 % maximum Mechanical Characteristics Stop Strength Torque Starting and Running Torque (Non-Locking Bushings) Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean fl ux. For dimensional drawings see pages 3 & 4. For ordering information see page 5. NOTE: Model 81/82 performance specifi cations do not apply to units subjected to printed circuit board cleaning procedures. 1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. Potentiometer Specifi cations *RoHS COMPLIANTVERSIONS AVAILABLE

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications 81/82 - 5/8 ” Square Single-Turn Panel Control 85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch Initial Electrical Characteristics1 Contacts: Power Rating (Resistive Load): Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Environmental Characteristics1 Moisture Resistance (MIL-STD-202, Method 106, Condition B) Mechanical Characteristics1 NOTE: Model 81/82 performance specifi cations do not apply to units subjected to printed circuit board cleaning procedures. 1At 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 81/82 - 5/8 ” Square Single-Turn Panel Control Product Dimensions "A" Bushing 3/8 " (9.53 mm) Dia. Plain - Single Shaft 3/8-32 UNEF "B" Bushing 3/8 " (9.53 mm) Dia. Plain - Single Shaft 3/8-32 UNEF 4.45 (.175) MIN. "C" Bushing 1/4 " (6.35 mm) Dia. Plain - Single Shaft "C" Bushing 1/4 " (6.35 mm) Dia. Plain - Concentric Shaft 3/8-32 UNEF M10 x 0.75-6g TRIPLE CONCENTRIC (SPECIAL ORDER) 1/4-32 UNEF "A" Bushing 3/8 " (9.53 mm) Dia. Plain - Concentric Shaft "S" Bushing 10 mm Dia. Locking - Single Shaft 1/4-32 UNEF "E" Bushing 1/4 " (6.35 mm) Dia. Locking - Single Shaft 9.50 ± .38 (.375 ±.015) STANDARD DIA. (.063+.015/-.000) SHAFT SLOT 1.19 WIDE X 1.60+.38/-.00 DEEP (.047) 45 ° ±5 ° X 45 ° ±5 ° X (.010)CHAMFER .25 45 ° ±5 ° X (.010)CHAMFER .25 7.92 (.312)MIN. 9.53 ± .13 (.375 ± .005) PILOT DIA. 5.49 OPTIONAL FLAT 16.00 LONG OR 1.52 FROM "A" BUSHING END FOR SHAFTS UNDER 17.46 (.216) (.63) (.06) (11/16) (.010)CHAMFER .25 45 ° ±5 ° X (.010)CHAMFER .25 (.063 +.015/-.000) SHAFT SLOT 1.19 WIDE X (.047) 12.70 ± .13 (.500 ± .005) 15.88 ± .79 (5/8 ± 1/32) STANDARD 6.32 ± .03 (.249 ± .001) DIA. 9.53 ± .13 (.375 ± .005) PILOT DIA. 11.13 (.438) MIN. 6.35 ± .13 (.250 ± .005) STANDARD SHAFT SLOT .79 WIDE X .79 ± .25 DEEP (.031) (.031 ± .010) 2.39 ± .13 OPTIONAL FLAT 6.35 LONG OR 1.52 FROM "C" BUSHING END FOR SHAFTS UNDER (9/16) 6.35 ± .05 (.250 ± .002) PILOT DIA. SHAFT SLOT .78 WIDE X .78 ± .03 DEEP (.031) (.031 ± .001) 12.7 ± .13 (.500 ± .005) 10.80 (.425) MIN. 15.88 ± .79 (5/8 ± 1/32) STANDARD 3.18 ± .03 (.125 ± .001) DIA. 6.35 ± .05 (.250 ± .002) PILOT DIA. 28.58 ± .79 (1-1/8 ± 1/32) STANDARD19.05 ± .79 (3/4 ± 1/32) STANDARD (.375) 9.53 6.32 ± .03 (.249 ±.001)DIA. 3.162 ± .025 (.1245 ± .001)DIA. 1.98 ± .03 (.078 ± .001)DIA. OUTER SHAFT 7.47 DIA. OPERATES SECTION #1 INNER SHAFT 3.18 DIA. OPERATES SECTION #2, #3, & #4 ("G" STYLE) (.249) (.125) OUTER SHAFT 3.18 DIA. OPERATES SECTION #1 INNER SHAFT .078 DIA. OPERATES SECTION #2, #3, & #4 ("G" STYLE) (.125) (1.95) 15.88 ± .79 (5/8 ± 1/32) STANDARD 25.40 ± .79 (1 ± 1/32) STANDARD 22.00 ± 0.79 (.866 ± .031) STANDARD PILOT DIA. 12.50 ± 0.38 (.492 ± .015) 10.92 (.430) (.236 +.000/-.003) 1.01 ± 0.10 (.040 ± .004) 9.90 (.390) 1.80 ± 0.25 (.071 ± .010) 6.35 (.25) 3.162 ± .025 (.1245 ± .001)DIA. 1.98 ± .03 (.078 ± .001)DIA. 3.162 ± .025 6.35 ± .03 (1/4 ± 1/32) 1/4-32 UNEF 45 ° ±5 ° X (.010)CHAMFER .25 SHAFT SLOT WIDE X DEEP DIA. MIN. DIMENSIONS: MM (INCHES) 1 3 CCW POTENTIOMETER

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications 81/82 - 5/8 ” Square Single-Turn Panel Control Product Dimensions Dual Unit - PC Pins & J-Hook Triple Unit - PC Pins & J-Hook Quad Unit - PC Pins & J-Hook FLATTED SHAFT 120 ° ± 5 ° CCW END Shaft Flat Orientation* SLOTTED SHAFT 1 23 30 ° ±5 ° *EXCLUDES MODELS 83 AND 84 Model 81 Suggested PC Board Layout - PC Pins (Single-Shaft Style Bottom View) Note: For units with dual concentric shaft styles, a 2.54 (.100) spacer is added between the module(s) driven by the outer shaft and those driven by the inner shaft. For G, K, or V shafts, add the spacer between modules 1 and 2. For L or M shafts, add the spacer between modules 2 and 3. For N or P shafts, add the spacer between modules 3 and 4. Model 81/82 Single Unit - PC Pins & J-Hook Terminal outlines shown as solid lines represent PC Pins, available on Model 81. Dashed line terminal outline represents "J" Hook, available on Model 82. 26.04 ± .79 (1.025 ± .031) 10.16 ± .38 (.400 ± .015) 10.16 ± .38 (.400 ± .015) TYP. 36.20 ± 1.19 (1.425 ± .047) 46.36 ± 1.19 (1.825 ± .047) 15.88 ± .41 (.625 ± .016) 5.97 ± .38 (.235 ± .015) 5.08 ± .38 (.200 ± .015) 15.88 ± .38 (.470) 9.58 ± .38 (.377 ± .015) 15.88 ± .38 (.625 ± .015) 5.33 ± .76 (.210 ± .03) 3.81 (.150) MAX. 3 PLCS. .81 (.032) DIA. 5.08 ± .38 (.200 ± .015) 12.7 (.50) 1.14 (.200 ± .005) 10.16 ± .13 (.400 ± .005) 5.08 ± .13 (.200 ± .005) DIMENSIONS: MM (INCHES)

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. 85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch Product Dimensions REAR PLATE COVER (.725) 18.42 Switch Module Model 85/86 Primary Potentiometer Module Model 85/86 Secondary Potentiometer Module Model 85/86 Locating Lug Options - All Model 80 Series NOTE: "D" OPTION - NO A/R LUG. OTHER LOCATING LUG OPTIONS AVAILABLE. FOR DETAILS CONSULT FACTORY. REAR COVER PLATE SWITCH MODULE PRIMARY POTENTIOMETER MODULE Assembly Sequence Model 85/86 Secondary Potentiometer Module TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.005) .XX ± (.015) ANGLE ± 5 % 14.53 (.572) 9.58 ± .38 (.377 ± .015) 12.7 (.50) 5.08 (.200) 5.97 (.235) 8.56 (.337) 10.16 (.400) 1.60 (.063) 8.56 (.337) 5.08 (.200) 15.88 (.625) 15.88 (.625) 5.08 (.200) 1.35 (.053) 2.77 (.109) TYP.

6 PLACES

2.29 (.090) (.095)L X (.045)W SLOT TYP. 6 PLACES 2.41 1.14 2.92 (.115) 9.53 (.375) .127 .38 A 7.75 (.305).46 (.018) 2.31 (.091) E 3.18 (.125) 13.49 (.531) J 2.36 (.093) 9.53 (.375) .79 ± .41 (.031 ± .016) E = 2.36 ± .76 (.078 ± .016) FLATTED SHAFT 120 ° ± 5 ° CCW END Shaft Flat Orientation* SLOTTED SHAFT 30 ° ± 5 ° *EXCLUDES MODELS 83 AND 84 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. NOTE: Switch terminals shown in vertical position. 2654 15.88 (.625) REF. DIMENSIONS: MM (INCHES)

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. 81/82 - 5/8 ” Square Single-Turn Panel Control 85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch How To Order 8 5 A 2 A - B 2 8 - A 1 5 / R51 L 8 1 A 2 A - B 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) A Single Plain 1/4 ” (6.35 mm) D 16,20,24,28 A, B, J B Single Slotted 1/4 ” (6.35 mm) D 16,20,24,28 A, B, J C Single Flatted 1/4 ” (6.35 mm) D 20,24,28 A, B, J E Single Slotted 1/8 ” (3.18 mm) D 12,16,20,24,28 C, E, N F Single Flatted 1/8 ” (3.18 mm) D 24 C, N G Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D 36,40 A, J Outer Operates Section 1 K Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36 C, N Outer Operates Section 1 L Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D 36,40 A, J Outer Operates Section 1/2 M Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36 C, N Outer Operates Section 1 N Dual Concentric Plain 1/4 ” (6.35 mm) D - 1/8 ” (3.18 mm) D 36,40 A, J Outer Operates Section 1/2/3 P Dual Concentric Plain 1/8 ” (3.18 mm) D - 5/64 ” (1.98 mm) D 32,36 C, N Outer Operates Section 1/2 R Single Slotted 6 mm D 16,19,22,50 R, S T Single Slotted 4 mm D 10, 13, 22 U V Dual Concentric Plain 6 mm D - 3 mm D 30, 42 R Outer Operates Section 1 A Plain 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) L B Locking 3/8 ” (9.53 mm) D x 1/2 ” (12.7 mm) L C Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L E Locking 1/4 ” (6.35 mm) D x 1/2 ” (12.7 mm) L J Plain 3/8 ” (9.53 mm) D x 1/4 ” (6.35 mm) L N Plain 1/4 ” (6.35 mm) D x 3/8 ” (9.53 mm) L R Plain 10 mm D x 9 mm L S Locking 10 mm D x 12.5 mm L U Plain 7 mm D x 6 mm L 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

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 (R71) DPDT CCW Detent In-Line Term (R72) DPDT CW Detent Horz Term (R73) DPDT CCW Detent Horz Term # SECTIONS APPLICABLE MODELS/nobreakspace/nobreakspace/nobreakspace/nobreakspace

1 Single 81,82

2 Double 81,82,85,86

3 Triple 81,82,85,86

4 Quad 81,82,85,86

A Single .305 R, 90 °CW B Double .305 R, 90 ° & 270 °CW C Single .305 R, 270 °CW D No Lug E Single .531 R, 90 °CW F Single .305 R, 180 °CW J Single .375 R, 90 °CW K Double .375 R, 90 ° & 270 °CW ANTI-ROTATION LUG RoHS IDENTIFIER Compliant Non-Compliant L Blank Models 81 & 82: Part number for multiple section potentiometers must have a taper and resistance value for each section. Models 85 & 86: Part number must contain a switch type. Boldface features are Bourns standard options. All others are available with higher minimum order quantities. Non-Compliant versions are available, but not recommended for new designs. SHAFT AVAILABLE LENGTH ONLY IN (FMS) BUSHING Code Description Code 12 3/8 ” L C, N, J 16 1/2 ” L A, C, J, N 20 5/8 ” L A, B, C, E, J, N 24 3/4 ” L A, B, C, E, J, N 28 7/8 ” L A, B, C, E, J, N 32 1 ” L A, B, C, E, J, N Metric 10 10 mmL U 13 13 mmL U 16 16 mmL R, S 19 19 mmL R, S 22 22 mmL R, S, U 30 30 mmL R, S 42 42 mmL R, S 50 50 mmL R, S REV. 03/12