Features ■ ■ ■ Features one-piece molded plastic shaft and rotor assembly Available in a variety of pin-out configurations Virtually infinite electrical circuit isolation ■ ■ Model 96 sealed for board wash Metal shaft available as special feature 91, 92, 93, 94, 95, 96, 99 - 5/8 ” Square Single-Turn Panel Control 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch Potentiometer Specifications Initial Electrical Characteristics1 Conductive Plastic Element Cermet Element Standard Resistance Range Linear Tapers (A, B, E, & H) ................................................................(B & E) 1 K ohms to 1 megohm ......................(A & H) 100 ohms to 1 megohm Audio Tapers (C, D, F, G, S, & T).........................................................(D,G,S, & T) 1 K ohms to 1 megohm ..............(C & F) 1 K ohms to 1 megohm Total Resistance Tolerance .....................................................................10 % or 20 % .................................................5% or 10% Independent Linearity .............................................................................±5 %...............................................................±5 % Absolute Minimum Resistance ...............................................................2 ohms maximum........................................... 2 ohms maximum Effective Electrical Angle ........................................................................(Linear tapers) 240 ° ± 5 °...............................(Linear tapers) 240 ° ± 6 ° (Audio tapers) 225 ° ± 5 ° (Audio tapers) 225 ° ± 6 ° Contact Resistance Variation .................................................................±1 %...............................................................±1 % or 3 ohms (whichever is greater) Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Sea Level............................................................................................1,500 VAC minimum.......................................1,500 VAC minimum 70,000 Feet ........................................................................................500 VAC minimum..........................................500 VAC minimum Insulation Resistance (500 VDC) ............................................................1,000 megohms minimum..............................1,000 megohms minimum Power Rating (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less) +70 °C Single Section Assembly .......................................................(Linear tapers) 0.5 watt...................................(Linear tapers) 2 watts (Audio tapers) 0.25 watt (Audio tapers) 1 watt +70 °C Multiple Section Assembly.....................................................(Linear tapers) 0.5 watt/section......................(Linear tapers) 1 watt/section (Audio tapers) 0.25 watt/section (Audio tapers) 0.5 watt/section +125 °C ..............................................................................................0 watt..............................................................0 watt Theoretical Resolution ............................................................................Essentially infinite ...........................................Essentially infinite Environmental Characteristics1 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 Load Life .................................................................................................1,000 hours ....................................................1,000 hours Total Resistance Shift.........................................................................±10 % maximum ............................................±5 % maximum Rotational Life (No Load) ........................................................................100,000 cycles ...............................................100,000 cycles Total Resistance Shift.........................................................................(Linear tapers) 10 ohms or ±15 % TRS max. ...(All tapers) ±5 % TRS max. (whichever is greater) (Audio tapers) ±20 % maximum Contact Resistance Variation @ 50,000 cycles ..................................(Linear tapers) ±2 % .......................................±2 % (Audio tapers) ±3 % .......................................±3 % Moisture Resistance (MIL-STD-303, Method 103, Condition B) Total Resistance Shift.........................................................................(Linear tapers) ±10 % TRS maximum ............(All tapers) ±5 % TRS maximum (Audio tapers) ±20 % TRS maximum Insulation Resistance (500 VDC) ........................................................100 megohms minimum.................................100 megohms minimum IP Rating (Model 96) ...............................................................................IP 65 ...............................................................IP 65 (All Others) ..........................................................................................IP 40 ...............................................................IP 40 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 91, 92, 93, 94, 95, 96, 99 - 5/8 ” Square Single-Turn Panel Control 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch Potentiometer Specifications Mechanical Characteristics1 Stop Strength (1/4 ” D shaft)......................................................................................................................................................................45.19 N-cm (4 lb.-in.) (1/8 ” D shaft) ....................................................................................................................................................................33.89 N-cm (3 lb.-in.) Mechanical Angle ........................................................................................................................................................................................................300 ° ±5 ° Torque Starting ....................................................................................................................................................................0.3 max. above average running torque Running Torque Single or Dual Section (A ,D & R Bushings) ..............................................................................................................0.21 to 1.06 N-cm (0.3 to 1.5 oz.-in.) Single or Dual Section (C & U Bushings) ..................................................................................................................0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.) Mounting ............................................................................................................................................(Metal Bushing) 1.7-2.0 N-m (15-18 lb.-in.) maximum Plastic Bushing) 56-79 N-cm (5-7 lb.-in.) maximum Variation ................................................................................................................................................0.35 N-cm (0.5 oz.-in.) maximum in 45 ° shaft travel Weight (Single Section) ..................................................................................................................................................................................7 grams maximum (Each Additional Section) ..........................................................................................................................................................................4 grams maximum Terminals..........................................................................................................................................................Printed circuit terminals, J-Hooks or solder lugs 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. Marking............................................................................................................Manufacturer’s trademark, date code, resistance, manufacturer’s part number Ganging (Multiple Section Potentiometers)......................................................................................................................................................2 cups maximum Hardware ............................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number. NOTE: ALL MODEL 90 PERFORMANCE SPECIFICATIONS DO NOT APPLY TO UNITS SUBJECTED TO PRINTED CIRCUIT BOARD CLEANING PROCEDURES, EXCEPT FOR THE SEALED VERSION (MODEL 96). AT ROOM AMBIENT: +25 °C NOMINAL AND 50 % RELATIVE HUMIDITY NOMINAL, EXCEPT AS NOTED. 1 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 91, 92, 93, 94, 95, 96, 99 - 5/8 ” Square Single-Turn Panel Control 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch Rotary Switch Specifications Initial Electrical Characteristics1 Contacts: DPST ..................................................................................................................................................................................N.O/N.O., N.C./N.C. or N.O./N.C. DPDT....................................................................................................................................................................................2 N.O./N.C. (break before make) Power Rating (Resistive Load): DPST ................................................................................................................2 A @ 125 volts RMS-60 Hz or 2 A @ 28 VDC, 1 A @ 250 volts RMS-60 Hz DPDT ..............................................................................................................................................................1 A @ 125 volts RMS-60 Hz or 1 A @ 28 VDC Contact Resistance (0.1 VDC-10 mA)........................................................................................................................................................10 milliohms nominal Contact Bounce ..................................................................................................................................................................................5 milliseconds maximum Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Sea Level ................................................................................................................................................................................................1500 VAC minimum Insulation Resistance ..........................................................................................................................................................................1000 megohms minimum Environmental Characteristics1 Operating Temperature Range ............................................................................................................................................................................0 °C to +70 °C Exposure Temperature Range ........................................................................................................................................................................-65 °C to +125 °C Vibration (Dual Section) ..........................................................................................................................................................................................................8 G Contact Resistance ............................................................................................................................................................................10 milliohms maximum Contact Bounce..............................................................................................................................................................................0.1 millisecond maximum Shock (Dual Section) ............................................................................................................................................................................................................20 G Contact Resistance ............................................................................................................................................................................10 milliohms maximum Contact Bounce..............................................................................................................................................................................0.1 millisecond maximum Rotational Life ........................................................................................................................................................................................................25,000 cycles Switch Actuating Torque (50% Duty cycle @ Rated Power Load) ......................................................................................1.41 to 4.94 N-cm (2 to 7 oz.-in.) Contact Resistance ..........................................................................................................................................................................100 milliohms maximum Moisture Resistance (MIL-STD-202, Method 106, Condition B) Contact Resistance (0.1 VDC-10 mA) ................................................................................................................................................10 milliohms maximum Insulation Resistance (After 24 Hours @ Room Temperature) (500 VDC) ........................................................................................100 megohms minimum Housing Material ................................................................................................................................High temperature, flame retardant, thermosetting plastic Mechanical Characteristics1 Actuating Torque (Each Section, Switch Module Only) ......................................................................................................3.53 to 10.59 N-cm (5 to 15 oz.-in.) Running Torque (Out of Detent, 2-4 Module Assembly) ......................................................................................................0.21 to 1.41 N-cm (0.3 to 2 oz.-in.) Detent........................................................................................................................................................................................................CW or CCW standard Actuation Angle..............................................................................................................................................................................................................20 ° ±5 ° Contact Materials ............................................................................................................................................................................Fine silver with gold overlay Terminal Styles ....................................................................................................................................................................................................Solder lug only Standard Orientation ..................................................................................................................................................................In-line with control terminals Optional ..............................................................................................................................................................................Rotated 90 ° CCW from standard Terminal Strength (Before and After Soldering Heat Exposure)..............................................................................................................0.9 kg (2 lbs.) minimum NOTE: Model 99 performance specifications 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. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 91, 92, 93, 94, 95, 96, 99 - 5/8 ” Square Single-Turn Product Dimensions Model 92 J-Hooked Terminals, In-Line Model 91 PC Pin Terminals, In-Line .79 ± .41 (.031 ± .016) 22.86 ± .43 (.90 ± .017) 12.7 (.50) 15.88 ± .38 (.625 + .015) 1.37 (.054) 9.53 ± .38 (STYLE A) (.375 ± .015) 6.35 ± .38 (STYLE C) (.250 ± .015) SEE DETAIL FOR SHAFT OPTIONS .79 (.031) 2 PLCS. 13.72 DIA. (.54) 1 2 11.05 ± .20 (.435 ± .008) 2.54 (.100) 10.16 (.40) .254 (.010) GAP 3 2 1 5.08 (.20) 3 9.53 ± .38 (.375 ± .015) 15.29 ± .56 (.602 ±.022) (MODEL 91 ONLY) 1.52 (.06) .81 DIA. (.032) 2.54 (.100) .81 (.032) R. MAX. 12.7 ± 1.02 (.50 ± .040) 5.97 ± .38 (.235 ± .015) 5.08 ± .38 (.20 ± .015)TYP. 16.89 ± .51 (.665 ± .020) 2 1.52 (.06) GAP 5.33 ± .76 (.21 ± .03) 3.81 (.150) MAX. TYP. 6 2 3 2.29 6 PLCS. (.090) 2.77 ± .38 (.109 ± .015) 4.45 ± .38 (.175 ± .015) Switch Module Variations Shaft Flat Orientation 120 ° ± 5 ° STD. FLAT ORIENTATION (SHAFT AT CCW END) 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") 1 CCW 3 2 POTENTIOMETER TOTAL ROTATION 300 ° CCW DETENT 25 ° MAX. ACTUATION ANGLE (TYPES 51, 53, 55, 57, 59, 61, 71, 73) 1 2 3 1 2.41 X 1.14 SLOT 6 PLCS (.095 ± .045) 1 Bushing Styles 5.08 (.20) 11.05 ± .20 (.435 ± .008) 1 3 MOUNTING SURFACE 4 5 Model 93 PC Pin Terminals, "L" Pattern 10.16 ± .30 (.40 ± .012) 15.88 (.625) REF. 5.59 ± .38 (.022 ± .015) Model 94 J-Hooked Terminals, "L" Pattern 3 2 1 .81 DIA. TYP. (.032) 24.77 ± .51 (.975 ± .020) 2.77 ± .38 (1.09 ± .015) 15.88 ± .38 (.625 ± .015) 2.36 (.093) Model 99 1st Cup Same As Model 95 (2nd Cup - Switch) 2 CW DETENT 25 ° MAX. ACTUATION ANGLE (TYPES 50, 52, 54, 56, 58, 60, 70, 72) Model 95 Solder Lug Terminals, "Triangular" Pattern NOTE: Switch terminals shown in vertical position. 5.08 ± 1.02 (.200 ± .040) 1 5.59 ± .20 (.220 ± .008) 4.45 ± .38 (.175 ± .015) 10.16 (.40) 2.54 (.100) .41 (.016) 2 1 2 DPST (NC/NC) (TYPES 54, 55, 60, 61) 4 3 2.29 1.02 WIDE X LONG (.040) (.090) 3 PLCS. 4 2 1 3 1 DPST (NO/NO) (TYPES 52, 53, 58, 59) 2 1 2.54 (.100) 3 DPST (NO/NC) (TYPES 50, 51, 56, 57) 3 3 2 1 4.45 ± .38 (.175 ± .015) 2.03 (.080) 3 PLCS. 4 4 3 5 6 2 DPST (NC/NC) (TYPES 70, 71, 72, 73) Switch contacts shown in detent position. Shaft Styles 1.60+.38/-.00 (.063+.015/-.000) SEE NOTE 1.19 (.047) 14.27 ± .25 (.562 ± .010) SHAFT TYPE "B" 12.7 15.88 19.05 22.23 6.31+.025/-.076 DIA STD. LENGTHS "L" (1/2), (5/8), (3/4), (7/8) (.2485+.001/.003) USES BUSHING A OR D 6.31+.025/-.076 DIA. (.2485+.001/.003) 5.49 (.216) 6.31+.025/-.076 DIA. (.2485+.001/.010) SHAFT TYPE "C" 19.05 22.0 STD. LENGTHS "L" (3/4), (7/8) USES BUSHING A OR D Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. .79 (0.03) SHAFT TYPE "R" 16.0 19.05 22.0 STD. LENGTHS "L" (5/8), (3/4), (7/8) USES BUSHING R 1.00 6.0 (.04) (.236)DIA. 3.988 DIA. (.157) *DIMENSIONS ARE IN MM DIMENSIONS ARE: SHAFT TYPE "D" 12.7 15.88 STD. LENGTHS "L" (1/2), (5/8), 19.05 USES BUSHING C (3/4) 1.80 ± .25 (0.07 ± .001) 1.50 ± .25 (0.06 ± .001) SHAFT TYPE "W" STD. LENGTHS "L" 1" FINGER KNURL, FOR USE WITH BUSHING A OR D .128 TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.015 )FRACTION ± 1/64 .005 .XX ± ANGLE ±5 ° (.38) 13.16+.00/-.15 DIA. (.1245+.000/-.006) MM (INCHES) SHAFT TYPE "T" 22.0 12.0 16.0 STD. LENGTHS "L" (1/2), (5/8), (7/8) USES BUSHING U 7.95 19.05 NOTE: FOR (.750) SHAFT - FLAT LENGTH IS (.313) 22.23 11.18 FOR (.875) SHAFT - FLAT LENGTH IS (.440) How to Order 90 Series Panel Controls 91 A 2 A - B 28 - A 15 99 A 2 A - B 28 - A 15 / R51 (Optional) (R50) (R51) (R52) (R53) (R54) (R55) (R56) (R57) (R58) (R59) (R60) (R61) (R70) (R71) (R72) (R73) ANTI-ROTATION LUG Single .305 ” (7.8 mm) R, 90 °CW C Single .305 ” (7.8 mm) R, 270 °CW D No Lug A # SECTIONS 1 Single 2 Dual A C D R U 91 92 93 94 95 96 99 APPLICABLE MODELS Models 91 Thru 96 Only All Models, 2nd Section is a Switch in Model 99 BUSHING Metal Plain 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) L Metal Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L Plastic Unthreaded 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) D Metal Plain 10 mm D x 9 mm L Metal Plain 7 mm D x 9 mm L MODEL Single-Turn, In-Line PC Pins Single-Turn, In-Line J-Hooks Single-Turn, L-Pattern PC Pins Single-Turn, L-Pattern J-Hooks Single-Turn, Triangle-Pattern Solder Lugs Single-Turn, In-Line PC Pins, Sealed Single-Turn, Triangle-Pattern Solder Lugs w/Switch 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 AVAILABLE ONLY IN LENGTHS BUSHINGS (CODE) (CODE) Single Slotted 1/4 ” (6.35 mm) D 16,20,24,28 A, D Single Flatted 1/4 ” (6.35 mm) D 24,28 A, D Single Plain 1/8 ” (3.18 mm) D 16,20,24 C Single Slotted 6 mm D Metric 16,19,22 R Single Slotted 4 mm D Metric 16,19,22 U Single Knurled 1/4 ” (6.35 mm) D 32 A, D SWITCH TYPE (MODEL 99 ONLY) DPST N.O./N.C. CW Detent In-Line Term DPST N.O./N.C. CCW Detent In-Line Term DPST N.O./N.O. CW Detent In-Line Term DPST N.O./N.O. CCW Detent In-Line Term DPST N.C./N.C. CW Detent In-Line Term DPST N.C./N.C. CCW Detent In-Line Term DPST N.O./N.C. CW Detent Horz Term DPST N.O./N.C. CCW Detent Horz Term DPST N.O./N.O. CW Detent Horz Term DPST N.O./N.O. CCW Detent Horz Term DPST N.C./N.C. CW Detent Horz Term DPST N.C./N.C. CCW Detent Horz Term DPDT CW Detent In-Line Term DPDT CCW Detent In-Line Term DPDT CW Detent Horz Term DPDT CCW Detent Horz Term ELEMENT TYPE TAPER/TOLERANCE (A) Linear Cermet ±10 % (H) Linear Cermet ±5 % (B) (E) (C) (D) (F) (G) (S) (T) RESISTANCE CODE VALUE IN OHMS (05) - 100 (30) - 15 K (28) -150 (16) - 20 K (06) - 200 (17) - 25 K (07) - 250 (18) - 50 K (08) - 500 (19) - 75 K (09) - 750 (20) - 100 K (10) - 1 K (31) - 150 K (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 (14) - 7.5 K (25) - 1 M (15) - 10 K Linear C-P ±20 % (10) - 1 K (18) - 50 K 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 CW Audio Cermet ±10 % (10) - 1 K (18) - 50 K CW Audio C-P ±20 % (12) - 2.5 K (20) - 100 K CCW Audio Cermet ±10 % (13) - 5 K (22) - 250 K CCW Audio C-P ±20 % (15) - 10 K (23) - 500 K CW Audio C-P ±10 % (17) - 25 K (25) - 1 M CCW Audio C-P ±10 % SHAFT TYPE B C D R T W Boldface features are Bourns standard options. All others are available with higher minimum order quantities. REV. 11/04 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.