features single-turn / cermet / industrial / sealed designed for operational ampli er offset voltage adjustment applications reduces power supply drift errors unique center tapped trimming potentiometer vertical adjust type available rohs compliant* version available for trimmer applications/processing guidelines, click here 3386-ot1 - 3/8 ?square trimpot trimming potentiometer *rohs directive 2002/95/ec jan 27 2003 including annex. ?rimpot?is a registered trademark of bourns, inc. ??luorinert?is a registered trademark of 3m co. speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. electrical characteristics standard resistance range ......................100 ohms to 1 megohm (see standard resistance table) resistance tolerance ........... 20 % std. absolute minimum resistance ....................................... 2 ohms max. voltage output variation ........... 0.25 % adjustability (vr) .................... 0.025 % insulation resistance @ 500 vdc .......................... 1,000 megohms min. dielectric strength sea level................................ 900 vac 70,000 feet ............................ 350 vac effective electrical travel ...... 280 nom. center tap resistance ...... 2 ohms max. center tap electrical center .......... 5 % center tap dead band ................6 4 environmental characteristics power rating 85 c ...................................... 0.5 watt 150 c ....................................... 0 watt temperature range ... -55 c to +150 c temperature stability ( vr) ....................................... 0.5 % max. seal test ......................85 c fluorinert? humidity .......mil-std-202 method 103 96 hours 2 % tr 10 megohms min. vibration, 30 g ...................... 1 % tr shock, 100 g ........................ 1 % tr load life, 1,000 hours .......... 3 % tr rotational life, 200 cycles .... 4 % tr physical characteristics mechanical angle ................. 310 nom. torque ............................. 5.0 oz-in. max. stop strength ................ 15.0 oz-in. min. terminals .......................solderable pins weight ....................................... 0.03 oz. marking ........................... manufacturer?s trademark, resistance code, wiring diagram, date code, manufacturer?s model number and style flammability ..........................u.l. 94v-0 standard packaging .......................... 50 pcs. per tube/tray adjustment tool ..............................h-90 also see model 3296-ot1 . product dimensions how to order 3386 p - ot1 - 103 lf model style catalog product resistance code terminations lf = 100 % tin-plated (rohs compliant) blank = 90 % tin / 10 % lead-plated (standard) standard resistance table resistance resistance (ohms) code 100 101 200 201 500 501 1,000 102 2,000 202 5,000 502 10,000 103 20,000 203 50,000 503 100,000 104 200,000 204 500,000 504 1,000,000 105 rev. 08/10 tolerances: 0.25 except where noted (.010) dimensions: mm (inches) popular values listed in boldface. special resistances available. shaded areas typically not stocked by distributors and not recommended for new designs. 4.83 (.190) 5.97 .89 (.235 .035) 3386p-ot1 4.70 .51 (.185 .030) 2.54 (.100) 1 2 3 4 9.53 (.375) 5.64 (.222) .38 (.015) 9.53 (.375) 2.54 (.100) 2.54 (.100) 2.54 (.100) min. .51 .05 (.020 .002) dia. adj. slot .76 (.030) .76 (.030) 3.81 (.150) wide x x deep long 1 3 cw clockwise ccw 2 wiper 4 center tap suggested offset voltage adjustment circuit r2 output r4 = r5 + r6 offset adjustment range = ? (r3/r6)(r2/r2 + r5) r2 & r4> r6 - + - input r2 + input r5 r6 10 2 3 1 4 +v ? r1 20k bourns offset trimmer r3 20k *rohs compliant versions available
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