PL IA NT CO M *R oH S Features ■ Multiturn / Wirewound / Industrial / Sealed ■ Listed on the QPL for style RT26 per MIL-R-27208 ■ RoHS compliant* ■ For trimmer applications/processing guidelines, click here 3260 - 1/4 ” Square Trimpot® Trimming Potentiometer Electrical Characteristics Standard Resistance Range .................................. 10 to 25K ohms (see standard resistance table) Resistance Tolerance ............. ±5 % std. (tighter tolerance available) Absolute Minimum Resistance .......................... 0.1 % or 1 ohm max. (whichever is greater) Noise .....................100 ohms ENR max. Resolution ............. See resistance table Insulation Resistance ............... 500 vdc. 1,000 megohms min. Dielectric Strength Sea Level................................ 600 vac 80,000 Feet ............................ 250 vac Adjustment Angle .............11 turns nom. Environmental Characteristics Power Rating 85 °C .................................... 0.25 watt 150 °C ....................................... 0 watt Temperature Range ... -65 °C to +150 °C Temperature Coefficient ..... ±70 ppm/°C Seal Test ......................85 °C Fluorinert† Humidity .......MIL-STD-202 Method 106 (2 % ΔTR, 100 Megohms IR) Vibration ................. 30 G (1 % ΔTR; 1% + resolution ΔVR) Shock ........................................... 100 G (1 % ΔTR; 1 % + resolution ΔVR) Load Life1,000 hours 0.25 watt @ 85 °C (2 % ΔTR; 500 ohms ENR) Rotational Life .......................200 cycles (2 % ΔTR; 500 ohms ENR) Physical Characteristics Torque............................. 3.0 oz-in. max. Mechanical Stops ................. Wiper idles Terminals Solderable printed circuit pins Weight ..................................... 0.015 oz. Marking.........Manufacturer’s trademark, resistance code, wiring diagram, date code, manufacturer’s model number and style Wiper ............... 50 % (Actual TR) ±10 % Flammability ............................UL 94V-0 Standard Packaging .....50 pcs. per tube Adjustment Tool..............................H-90 Product Dimensions How To Order 3260H Common Dimensions 3260 H - 1 - 502 Model 6.35 ± .51 (.250 ± .020) Style .89 (.035) Standard or Modified Product Indicator -1 = Standard Product 1 2 3 6.35 ± .51 (.250 ± .020) Resistance Code 4.78 ± .38 (.188 ± .015) .76 (.030) 2.54 (.100) Consult factory for other available options. Standard Resistance Table 2.54 (.100) 1.02 ± .38 (.040 ± .015) 2.54 (.100) 4.32 ± .38 (.170 ± .015) 1.27 (.050) 1.27 (.050) ADJ. SLOT 1.78 DIA. (.070) .51 WIDE X (.020) .51 DEEP X (.020) .41 ± .03 DIA. (.016 ± .001) 3260W Resistance (Ohms) 10 20 50 100 200 500 1,000 2,000 5,000 10,000 20,000 25,000 Resistance Code 100 200 500 101 201 501 102 202 502 103 203 253 Nominal Resolution (Percent) 1.90 1.50 1.23 1.00 0.94 0.58 0.50 0.45 0.34 0.29 0.28 0.23 Popular values listed in boldface. Special resistances available. 1.27 (.050) 1 2 3 6.35 ± .51 (.250 ± .020) 4.32 ± .38 (.170 ± .015) 1.27 (.050) .89 (.035) 2 CCW WIPER 3 1 CW CLOCKWISE DIMENSIONS: TOLERANCES: ± 0.25 (.010) MM (INCHES) EXCEPT WHERE NOTED REV. 08/10 *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.