Features Servo mount Excellent resolution Non-standard features and speci cations available Small diameter High rotational life RoHS compliant* 3750/3751 - Precision Potentiometer 1 Product Dimensions Electrical Characteristics 3750 Wirewound Element 3751 Hybritron Element Standard Resistance Range................100 to 100 K ohms .....................1 K to 100 K ohms 3750/3751 Total Resistance Tolerance ..................5 % ...........................................10 % Independent Linearity ..........................0.25 % ......................................0.25 % 28.40 .38 Effective Electrical Angle .....................3600 +10 , -0 .......................3600 +10 , -4 (1.118 .015) 3.18 + .25/ - .13 Absolute Minimum Resistance/ ...........1 ohm or 0.1 % maximum ..........Minimum voltage (.125 + .010/ .005) 1.57 + .25/ - .13 Minimum Voltage .............................(whichever is greater).................0.2 % maximum Noise ..................................................500 ohms ENR maximum ..........Output smoothness 0.15 % (.062 + .010/ - .005) 1.57 + .25/ - .03 maximum (.062 + .010/- .005) Dielectric Withstanding Voltage (MIL-STD-202, Method 301) 9.53 + .00/ - .03 Sea Level .........................................1,000 VAC minimum ..................1,000 VAC minimum (.375 + .010/- .005) Power Rating (Voltage Limited By Power Dissipation or 315 VAC, Whichever Is Less) +70 C ..............................................1 watt..........................................1 watt 12.70 + .30/- .20 +125 C ............................................0 watt..........................................0 watt (.500 + .010/- .007) Insulation Resistance (500 VDC) ........1,000 megohms minimum ..........1,000 megohms minimum Resolution............................................See recommended part nos....Essentially in nite 10.16 DIA. MAX. (.400) 1 30.16 9.53 .80 Environmental Characteristics MAX. (1-3/16) (3/8 1/32) Operating Temperature Range ............+1 C to +125 C ........................+1 C to +105 C Storage Temperature Range ...............-65 C to +125 C .......................-55 C to +105 C Temperature Coef cient Over 2 Storage Temperature Range .........50 ppm/C maximum/unit .........100 ppm/C maximum/unit 5.08 + .25/ - .12 Vibration ..............................................20 G ...........................................20 G (.20 + .010/- .005) Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum 3.18 .40 Shock...................................................100 G .........................................100 G (1/8 1/64) Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum Load Life ..............................................1,000 hours, 1 watt.....................1,000 hours, 1 watt Total Resistance Shift ......................2 % maximum ..........................5 % maximum 2 2 Rotational Life (No Load).....................1,000,000 shaft revolutions .....10,000,000 shaft revolutions Total Resistance Shift ......................5 % maximum ..........................5 % maximum 10.71 Moisture Resistance (MIL-STD-202, Method 103, Condition B) (27/64) 2.375 + .000/- .008 Total Resistance Shift ......................2 % maximum ..........................5 % maximum IP Rating ..............................................IP 40 ...........................................IP 40 (.0935 + .000/- .0003) 12.7 .40 (1/2 1/64) 1 Mechanical Characteristics Stop Strength..........................................................................................14 N-cm (20 oz-in.) minimum Mechanical Angle ......................................................................................................3600 +20 , -0 Torque TOLERANCES: EXCEPT WHERE NOTED Starting .................................................................................................0.35 N-cm (0.5 oz.-in.) max25 .13 Running ................................................................................................0.21 N-cm (0.3 oz.-in.) max. DECIMALS: .XX .XXX (.010) (.005) Shaft Runout.................................................................................................0.08 mm (0.003 in.) T.I.R. MM DIMENSIONS: Lateral Runout ..............................................................................................0.08 mm (0.003 in.) T.I.R. (IN) Shaft End Play ..............................................................................................0.13 mm (0.005 in.) T.I.R. FRACTIONS: 1/64 Shaft Radial Play ..........................................................................................0.05 mm (0.002 in.) T.I.R. Pilot Diameter Runout ..................................................................................0.05 mm (0.002 in.) T.I.R. Backlash ....................................................................................................................... 1.0 maximum WIPER 2 Weight ..................................................................................................................Approximately 8.5 G Terminals ...........................................................................................................Gold-plated turret lugs Soldering Condition CCW CW 1 3 Manual Soldering .................................96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire CLOCKWISE 370 C (700 F) max. for 3 seconds Wave Soldering ........................................................ 96.5Sn/3.0Ag/0.5Cu solder with no-clean ux 260 C (500 F) max. for 5 seconds Wash processes ..................................................................................................Not recommended Marking ................................................. Manufacturers name and part number, resistance value and tolerance, linearity tolerance, wiring diagram, and date code Ganging (Multiple Section Pots.) .................................................................................1 cup maximum 1 At room ambient: +25 C nominal and 50 % relative humidity nominal, except as noted. 2 Consult manufacturer for complete speci cation details. Recommended Part Numbers WARNING Part Number Resistance ( ) Resolution Part Number Resistance ( ) Cancer and Reproductive Harm 3750S-1-102L 1,000 0.05 3751H-1-102L 1,000 www.P65Warnings.ca.gov 3750S-1-202L 2,000 0.04 3751H-1-202L 2,000 Hybritron is a registered trademark of Bourns, Inc. 3750S-1-502L 5,000 0.04 3751H-1-502L 5,000 *RoHS Directive 2015/863, Mar 31, 2015 and Annex. 3750S-1-103L 10,000 0.02 3751H-1-103L 10,000 Specications are subject to change without notice. Users should verify actual device performance in their specic BOLDFACE LISTINGS ARE IN STOCK AND READILY ROHS IDENTIFIER: applications. The products described herein and this document AVAILABLE THROUGH DISTRIBUTION. L = COMPLIANT* are subject to specic legal disclaimers as set forth on the FOR OTHER OPTIONS CONSULT FACTORY. last page of this document, and at REV. 10/19 www.bourns.com/docs/legal/disclaimer.pdf *RoHS COMPLIANTLegal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns products manufactured by or on behalf of Bourns, Inc. and )V Y UZ P Z HSPH LZ JVSSLJ P LS Unless otherwise expressly indicated in writing, Bourns products and data sheets relating thereto are subject to change LU LSL HU PUMVYTH PVU HUK LYPM OH Z JO PUMVYTH PVU PZ J YY P OV UV PJL <ZLYZ ZOV SK JOLJR MVY HUK VI HPU OL SH LZ Y and complete before placing orders for Bourns products. 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