Features For trimmer applications/processing Multiturn / Wirewound / Sealed guidelines, click here Listed on the QPL for style RT22 per MIL-R-27208 and RTR22 per High-Rel MIL-R-39015 Panel mount option available RoHS compliant* 3250 - 1/2 Square Trimpot Trimming Potentiometer Electrical Characteristics Product Dimensions How To Order Standard Resistance Range 3250P 3250 L - 1 - 103 M Common Dimensions .................................. 10 to 50K ohms Model (Pin Styles) (see standard resistance table) Style 1.98 DIA. THRU Resistance Tolerance ............. 5 % std. (.078) (2 PLACES) Standard or Modi ed (tighter tolerance available) Product Indicator ADJ. SLOT Absolute Minimum Resistance 1.91 .25 -1 = Standard Product ..........................0.1 % or 1 ohm max. DIA. 13.21 (.075 .01) TYP. (.520) Resistance Code (whichever is greater) .64 X WIDE (.025) Noise .....................100 ohms ENR max. 12.7 Optional Su x Letter .51 TYP. X DEEP Resolution ........... See Resistance Table (.500) M = Panel Mount - Factory Installed .89 (.020) Insulation Resistance ...............500 vdc. (.035) (Only Available for L, W & X Terminal TYP. Styles) 1,000 megohms min. 2.54 (.100) Dielectric Strength Consult factory for other available options. 1.78 TYP. 2.54 Sea Level............................. 1,000 vac (.070) 5.59 (.100) .71 .08 80,000 Feet ............................ 400 vac (.220) DIA. TYP. 6.35 (.028 .003) Adjustment Travel .............25 turns nom. Standard Resistance Table (.250) 3 12.7 Nominal Environmental Characteristics (.500) 2 Resistance Resistance Resolution TYP. 1 Power Rating 85 C ...............1.0 watt (Ohms) Code (Percent) Power Rating 150 C ................0 watt 10 100 1.30 2.54 13.33 .64 (.100) 20 200 1.00 Temperature Range ...-65 C to +150 C (.525 .025) 6.35 50 500 0.80 Temperature Coe cient ..... 50 ppm/C (.250) 100 101 0.90 Seal Test ...................... 85 C Fluorinert 3250W 200 201 0.70 2.79 (pin styles only) 500 501 0.60 3 2 (.110) 1,000 102 0.40 Humidity .......MIL-STD-202 Method 106 1 2,000 202 0.30 (2 % TR 100 Megohms IR) 5,000 502 0.25 Vibration ......................................... 30 G 10,000 103 0.19 6.35 20,000 203 0.16 (1 % TR 0.5 % + resolution VR) 2.54 2.54 (.250) 25,000 253 0.14 Shock ........................................... 100 G (.100) (.100) 50,000 503 0.13 (1 % TR 0.5 % + resolution VR) Popular values listed in boldface. Special 3250W-66 Load Life 2.79 resistances available. 3 ............1,000 hours 1.0 watt 85 C 2 (.110) 1 (2 % TR 500 ohms ENR) RED WIPER Rotational Life .......................200 cycles 2 (2 % TR 500 ohms ENR) 6.35 2.54 2.54 (.250) YELLOW GREEN 1 3 (.100) (.100) CW Physical Characteristics CCW CLOCKWISE 3250L Torque .............................5.0 oz-in. max. Mechanical Stops .................Wiper idles MM DIMENSIONS: 13.21 (INCHES) Terminals ..Solderable printed circuit pins TYP. (.520) 0.25 Flexible leads (7 strands of 30 AWG) TOLERANCES: EXCEPT WHERE NOTED (.010) Weight ....................................... 0.06 oz. 2.36 Machine Screw Mounting DIA. THRU (.093) (2 PLACES) Torque ..........................12 oz-in. max. Marking .........Manufacturers trademark, .89 resistance code, terminal numbers, TYP. 12.70 (.035) date code, manufacturers model TYP. (.500) number and style 1.40 Wiper ...............50 % (Actual TR) 10 % (.055) 152.4 LENGTH MIN. Flammability ..........................U.L. 94V-0 4.75 (6.00) (.187) Standard Packaging P&W Styles ...............25 pcs. per tube 1.52 12.7 L Style ........................25 pcs. per bag REV. 04/15 TYP. (.060) (.500) Adjustment Tool ..............................H-90 Trimpot is a registered trademark of Bourns, Inc. Fluorinert is a registered trademark of 3M Co. *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specications are subject to change without notice. Users should verify actual device performance in their specic WARNING Cancer and Reproductive Harm applications. 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