Features RoHS compliant* Conductive plastic or cermet Linear and audio tapers PC board and bushing mount Gangable Metal bushing and shaft Sealed for board washing 51/53 - Sealed 1/2 (12.5 mm) Square Control 1 Electrical Characteristics Conductive Plastic Cermet Standard Resistance Range Linear ...................................................................................................1 K ohms to 1 megohm ......................... 150 ohms to 1 megohm Audio ....................................................................................................1 K ohms to 1 megohm ......................... 1 K ohms to 1 megohm Total Resistance Tolerance Linear Tapers ........................................................................................10 % or 20 % .................................... 10 % or 5 % Audio Tapers ........................................................................................10 % or 20 % .................................... 10 % Independent Linearity .................................................................................5 % ...................................................... 5 % Absolute Minimum Resistance ...................................................................2 ohms maximum .................................. 2 ohms maximum E ective Electrical Angle ............................................................................270 5 .............................................. 270 5 Contact Resistance Variation .....................................................................2 % ........................................................ 2 % Dielectric Withstanding Voltage (MIL-STD-202 Method 301) Sea Level ..............................................................................................1,500 VAC minimum .............................. 1,500 VAC minimum 70,000 ..................................................................................................500 VAC minimum ................................. 500 VAC minimum Insulation Resistance .................................................................................1,000 megohms minimum ..................... 1,000 megohms minimum Power Rating At 70 C (Derate To 0 At 125 C) (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less) Linear Tapers ........................................................................................0.5 watt .................................................. 1.0 watt Audio Tapers ........................................................................................0.25 watt ................................................ 0.5 watt Theoretical Resolution ................................................................................Essentially in nite .................................. Essentially in nite 1 Environmental Characteristics 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 Coe cient 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 % TRS maximum ........................... 5 % TRS maximum Rotational Life (No Load) ............................................................................50,000 cycles ........................................ 25,000 cycles Total Resistance Shift ...........................................................................10 % TRS maximum ........................... 10 % TRS maximum Contact Resistance Variation 25,000 Cycles ...................................2 % ...................................................... 4 % Moisture Resistance (MIL-STD-202, Method 103, Condition B) Total Resistance Shift ...........................................................................10 % TRS ............................................ 5 % TRS IP Rating Entire Unit .............................................................................................IP64 ....................................................... IP64 Shaft/Bushing.......................................................................................IP65 ....................................................... IP65 Mechanical Characteristics Stop Strength ............................................................................................................................................................................................... 56 N-cm (5 lb.-in.) Mechanical Angle ...................................................................................................................................................................................................... 290 5 Torque Starting (Dual Sections) .............................................................................................................................................. +0.35 N-cm (+0.5 oz.-in.) maximum Running (Single Section) .............................................................................................................................................0.15 to 1.4 N-cm (0.2 to 2.0 oz.-in.) Running (Dual Section) ................................................................................................................................................0.35 to 1.8 N-cm (0.5 to 2.5 oz.-in.) Detent (Single Section) ...................................................................................................................................................1.94 N-cm (2.75 oz.-in.) minimum Mounting (Torque on Bushing) ..........................................................................................................................1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum Weight (Single Section).............................................................................................................................................................................................. 5.5 grams (Additional Section) ............................................................................................................................................................................................. 3.0 grams Terminals ................................................................................................................................................................................................... PC pin or solder lug 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 ux. Part can be wave soldered at 260 C (500 F) for 5 seconds, no wash process with no clean ux. Marking .................................................................................................................. Manufacturers trademark, part number, resistance value and date code. Ganging (Multiple Section Potentiometer) ............................................................................................................................................ 2 sections maximum** Hardware ...........................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number. 1 At room ambient: +25 C nominal and 50 % relative humidity nominal, except as noted. ** Additional sections available on special request with higher minimum order quantities. *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Speci 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 speci c applications. *RoHS COMPLIANT 51/53 - Sealed 1/2 (12.5 mm) Square Control Product Dimensions PACKAGE DIMENSIONS FMS 7.62 (.300) 5.08 MODEL 51 16.51 0.25 (.200) 6.35 (.650 .010) (.250) 1.32 8.89 0.18 12.5 (.052) (.350 .007) (.492) 6.25 .64 11.00 TYP. DIA. (.246) ( .025) 2.54 (.432) (.100) 7.00 C (.275) OF POT L 0.74 (.029) 1.27 1.02 0.30 (.050) (.040) (.0118) DIA. 6.60 0.38 .66 .05 DIA. 3 X 4 PLCS. (.260 .015) 7.62 0.30 5.08 0.30 (.026 .002) 6 PLCS. 2.54 (.300 .012) (.200 .012) (.100) (DOUBLE MODULE FRONT AND REAR BRACKET SHOWN) 2.54 (.100) (SINGLE AND DUAL MODULE SHOWN) 2.54 TERMINAL SPACING (.100) PACKAGE DIMENSIONS PCB MOUNTING BRACKET SOLDER LUG TERMINALS MODEL 53 12.5 (.492) .64 6.25 ( .025) 11.00 DIA. (.246) (.432) 32 1 2.40 5.0 0.51 7.00 (.197 .020) (.275) (.094) 0.74 (.029) 0.90 1.80 1.32 0.25 (.036) (.071) (.052 .010) 6.60 0.38 0.91 .051 .41 .05 2 X 4.70 (.260 .015) (.036 .002) ( .016 .002) 5.08 0.30 2 X (.185) 5.08 (.200 .012) 5.08 (.200) 6.35 .25 7.62 0.30 (.200) (.250 .010) (.300 .012) ELECTRICAL SCHEMATIC 2.54 2 X (.100) CCW CW 1 3 2 ANTI-ROTATION LUG SHAFT FLAT SUGGESTED PANEL LAYOUT (Style Shown) 5.70 ORIENTATION (.224) 0.41 6.20 0.80 0.30 (.016) (.244) (.031 .012) 1.52 (.060) 2.26 DIA. 132 5 (.089) CCW END BUSHING DIAMETER TOLERANCE +0.25 ( +.010) .25 FOR TOLERANCES SHOWN: .XX = (.010) .13 .XXX = (.005) .80 SHAFT DIMENSIONS (1/32) MM DIMENSIONS: (INCHES) Speci 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 speci c applications.