*R oH VE S CO AV R M AI SIO PL LA N IA BL S NT E Features ■ Multiturn / Cermet / Sealed ■ Listed on the QPL for style RJ22 per MIL-R-22097 ■ Panel mount option available ■ RoHS compliant* version available ■ For trimmer applications/processing guidelines, click here 3252 - 1/2 ” Square Trimpot® Trimming Potentiometer Electrical Characteristics Standard Resistance Range ................................10 to 2 megohms (see standard resistance table) Resistance Tolerance ........... ±10 % std. (tighter tolerance available) Absolute Minimum Resistance ........................... 1 % or 2 ohms max. (whichever is greater) Contact Resistance Variation ........................... 1 % or 2 ohms max. (whichever is greater) Adjustability Voltage .................................. ±0.01 % Resistance ............................ ±0.05 % Resolution ................................... Infinite Insulation Resistance ............... 500 vdc. 1,000 megohms min. Dielectric Strength Sea Level............................. 1,000 vac 80,000 Feet ............................ 400 vac Effective Travel .................25 turns nom. Environmental Characteristics Power Rating @ 85 °C (400 volts max.) ............................................. 0.75 watt Power Rating @ 150 °C ................ 0 watt Temperature Range ... -65 °C to +150 °C Temperature Coefficient ... ±100 ppm/°C Seal Test ......................85 °C Fluorinert† (pin styles only) Humidity ......MIL-STD-202 Method 103; 96 hours (1 % ΔTR; 100 Megohms IR) Vibration ....... 30 G (1 % ΔTR; 1 % ΔVR) Shock ......... 100 G (1 % ΔTR; 1 % ΔVR) Load Life ... 1,000 hours 0.75 watt @ 85 °C ..................(3 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) Rotational Life .......................200 cycles (2 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) Physical Characteristics Torque............................. 5.0 oz-in. max. Mechanical Stops ................. Wiper idles Terminals Solderable printed circuit pins Flexible leads ......(7 strands of 30 AWG) Weight ..................................... 0.065 oz. Wiper ............... 50 % (Actual TR) ±10 % Flammability ..........................U.L. 94V-0 Machine Screw Mounting Torque.............................. 12 oz-in. max. Marking.........Manufacturer’s trademark, resistance code, wiring diagram, date code, manufacturer’s model number and style Standard Packaging X, P&W Styles ...........25 pcs. per tube L Style ........................25 pcs. per bag Adjustment Tool..............................H-90 Product Dimensions 3252P Common Dimensions (Pin Styles) How To Order 1.98 DIA. THRU (.078) (2 PLACES) TYP. Model ADJ. SLOT 2.03 ± .38 DIA. (.080 ± .015) .64 WIDE X (.025) .50 DEEP X (.020) 13.21 TYP. (.520) 1.78 (.070) 5.59 (.220) 3252 L - 1 - 103 M LF 12.7 TYP. (.500) 12.7 TYP. (.500) 2.54 (.100) .71 ± .08 (.028 ± .003) DIA. TYP. 1 3 1.52 (.060) 2.54 (.100) 2 Style Standard or Modified Product Indicator -1 = Standard Product Resistance Code Optional Suffix Letter M = Panel Mount (Factory Installed) Terminations LF = 100 % Tin-plated (RoHS compliant) Blank = 90 % Tin / 10 % Lead-plated (Standard) Consult factory for other available options. 2.54 6.35 (.100) (.250) 6.35 (.250) 13.34 ± .64 (.525 ± .025) 3252W 2.79 (.110) 2.54 (.100) 2.54 (.100) 5.59 (.220) 2 1 3 6.35 (.250) 3252L 2.36 TYP. (.093) 13.21 (.520) 1.52 (.060) 12.70 (.500) .89 TYP. (.035) 152.4 LENGTH MIN. (6.00) 4.75 (.187) Standard Resistance Table Resistance (Ohms) 10 20 50 100 200 500 1,000 2,000 5,000 10,000 20,000 25,000 50,000 100,000 200,000 500,000 1,000,000 2,000,000 Popular values listed in boldface. Special resistances available. RED 12.70 (.500) 1.52 (.060) YELLOW CCW 3252X 2.54 (.100) 2 1 3 Resistance Code 100 200 500 101 201 501 102 202 502 103 203 253 503 104 204 504 105 205 2 WIPER 3 1 CLOCKWISE GREEN CW 5.59 (.220) 2.54 (.100) 1.78 (.070) 6.35 (.250) DIMENSIONS: TOLERANCES: ± *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. “Trimpot” is a registered trademark of Bourns, Inc. †“Fluorinert” is a registered trademark of 3M Co. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 0.25 (.010) MM (INCHES) EXCEPT WHERE NOTED REV. 08/10