Features For trimmer applications/processing Multiturn/ Wirewound / Industrial / Sealed guidelines, click here Listed on the QPL for style RT24 per MIL-R-27208 and RTR24 per High-Rel MIL-R-39015 Panel mount option available RoHS compliant* 3290 - 3/8 Square Trimpot Trimming Potentiometer Electrical Characteristics Product Dimensions How To Order Standard Resistance Range 3290H 3290 H - 1 - 103 M Common Dimensions .................................. 10 to 50K ohms Model (see standard resistance table) 3.81 1.02 Style Resistance Tolerance ............. 5 % std. 1.27** (.150) (.040) 9.53 .38** (.050) (tighter tolerance available) Standard or Modi ed (.375 .015) Product Indicator Absolute Minimum Resistance 9.53 .38** -1 = Standard Product 1.52** ..........................0.1 % or 1 ohm max. (.375 .015) (.060) (whichever is greater) Resistance Code 3 2 1 Noise .....................100 ohms ENR max. 8.00 .38 Optional Su x Letter (.315 .015) Resolution M = Panel Mount .51 .03 TYP.** ...........(see standard resistance table) (.020 .001) (Factory Installed) 1.91 DIA. TYP.** Insulation Resistance ...............500 vdc. (.075) Consult factory for other available options. ADJ. SLOT 1,000 megohms min. 2.54 1.52 DIA. Dielectric Strength (.100) 2.54 (.060) (.100) Standard Resistance Table Sea Level............................. 1,000 vac .51 4.75 WIDE X (.020) (.187) 80,000 Feet ............................ 350 vac .64 Nominal DEEP X Adjustment Travel .............25 turns nom. (.025) Resistance Resistance Resolution **Common dimensions (Ohms) Code (Percent) Environmental Characteristics 10 100 1.11 3290P 20 200 0.93 Power Rating 85 C ...............1.0 watt 4.75 50 500 0.62 Power Rating 150 C ................0 watt (.187) 100 101 0.60 1 Temperature Range ...-65 C to +150 C 200 201 0.54 500 501 0.42 Temperature Coe cient ..... 50 ppm/C 2 4.75 1,000 102 0.33 Seal Test ......................85 C Fluorinert (.187) 3 2,000 202 0.26 2.54 Humidity .......MIL-STD-202 Method 106 2.54 5,000 502 0.20 (.100) 96 hours (2 % TR 100 Megohms IR) (.100) 10,000 103 0.17 2.54 20,000 203 0.14 Vibration ......................................... 30 G (.100) 25,000 253 0.13 (1 % TR 0.5 % + resolution VR) 50,000 503 0.11 Shock ........................................... 100 G 3290W Popular values listed in boldface. Special (1 % TR 0.5 % + resolution VR) 2.54 resistances available. (.100) Load Life ..1,000 hours 1.0 watt 85 C 3 (2 % TR 500 ohms ENR) 2 Rotational Life .......................200 cycles 1 (2 % TR 500 ohms ENR) 2.54 1.91 (.100) Physical Characteristics (.075) Torque .............................5.0 oz-in. max. Mechanical Stops .................Wiper idles WIPER 2 Terminals Solderable printed circuit pins Weight ..................................... 0.025 oz. CCW 3 CW 1 Marking .........Manufacturers trademark, CLOCKWISE resistance code, wiring diagram, date code, manufacturers model MM number and style DIMENSIONS: (INCHES) Wiper ...............50 % (Actual TR) 10 % 0.25 Flammability ..........................U.L. 94V-0 TOLERANCES: EXCEPT WHERE NOTED (.010) Standard Packaging .....50 pcs. per tube Adjustment Tool ..............................H-90 REV. 04/14 *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Trimpot is a registered trademark of Bourns, Inc. Fluorinert is a registered trademark of 3M Co. 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