T PL IA N M CO Features Multiturn / Cermet / Industrial / Sealed *R oH S Standoffs allow thorough PC board washing Tape and reel packaging available RoHS compliant* version available For trimmer applications/processing guidelines, click here 3266 - 1/4 " Square Trimpot(R) Trimming Potentiometer Electrical Characteristics Standard Resistance Range ........................10 ohms to 1 megohm (see standard resistance table) Resistance Tolerance ........... 10 % std. Absolute Minimum Resistance ........................... 1 % or 2 ohms max. (whichever is greater) Contact Resistance Variation ........................ 3.0 % or 3 ohms max. (whichever is greater) Adjustability Voltage Divider ...................... 0.02 % Rheostat ................................ 0.05 % Resolution ................................... Insulation Resistance ............... 500 vdc. 1,000 megohms min. Dielectric Strength Sea Level................................ 600 vac 80,000 Feet ............................ 250 vac .................12 turns nom. Environmental Characteristics Power Rating (300 volts max.) 70 C .................................... 0.25 watt 150 C ....................................... 0 watt Temperature Range ... -55 C to +125 C ... 100 ppm/C Seal Test ......................85 C Fluorinert Humidity .......MIL-STD-202 Method 103 96 hours (2 % TR, 10 Megohms IR) Vibration ....... 30 G (1 % TR; 1 % VR) Shock ......... 100 G (1 % TR; 1 % VR) Load Life...1,000 hours 0.25 watt 70 C (3 % TR; 3 % CRV) Rotational Life .......................200 cycles (4 % TR; 3 % or 3 ohms, whichever is greater, CRV) Physical Characteristics Torque............................. 3.0 oz-in. max. Mechanical Stops ................. Wiper idles Terminals .......................Solderable 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 ..........................U.L. 94V-0 Standard Packaging .....50 pcs. per tube Adjustment Tool..............................H-90 Product Dimensions 4.50 .38 (.177 .015) 1.27 .25** (.050 .010) 6.71 .38 TYP. (.264 .015) ADJ. SLOT 1.78 DIA. (.070) .51 WIDE X (.020) 1.22 .25 .64 DEEP (.048 .010) X (.025) 4.50 .38** (.177 .015) 7.24 .51 TYP.** (.285 .020) 4.88 .51** (.192 .020) 6.71 .38 (.264 .015) 1.02 (.040) 1.22 .25** (.048 .010) .46 .03** (.018 .001) 1 2 3 .46 .03** (.018 .001) 1 2 3 7.24 .51 (.285 .020) 2.54 (.100) 4.50 (.177) .46 .03 DIA.** (.018 .001) 2.54 2.54 (.100) .76** (.100) 2.54 (.100) 1.27 .38** (.050 .015) 2.54 (.100) 2.16 (.085) (.030) 1.27 .25** (.050 .010) 1.02 (.040) 1.27 .25** (.050 .010) 1 2 3 0.76 .25 (.030 .010) 4.50 .38 (.177 .015) 4.31 .38 (.170 .015) 1.02 (.040) 1.22 .25** (.048 .010) .46 .03** (.018 .001) 1.22 .25** (.048 .010) 1 2 3 7.24 .51 (.850 .020) 2.54 .25 (.100 .010) 2.54 .25 (.100 .010) 6.78 .51 (.267 .020) 2.54 .25 (.100 .010) 4.50 .38 (.177 .015) 2.54 (.100) 2.54 (.100) 2.16 (.085) 1.27 .25 (.050 .010) 1.02 (.040) 3266 W - 1 - 103 __ LF 1.22 .25 (.048 .010) 1 2 3 2.54 (.100) 2.54 (.100) 1.02 (.040) DIMENSIONS: TOLERANCES: 0.25 (.010) How To Order .46 .03** (.018 .001) 2.54 (.100) .76 (.030) **Common dimensions MM (INCHES) EXCEPT WHERE NOTED WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. "Fluorinert" is a registered trademark of 3M Co. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf Model Style Product Indicator -1 = Standard Product Resistance Code Packaging Designator Blank = Tube (Standard) R = Tape and Reel (Z and Y Pin Styles Only) A = Ammo Pack (Z and Y Pin Styles Only) Terminations LF = 100 % Tin-plated (RoHS compliant) Blank = 90 % Tin / 10 % Lead-plated (Standard) Consult factory for other available options. Tape and reel material meets Antistatic ANSI/ ESD 5541-2003 packaging standards. 2 CCW WIPER 3 1 CLOCKWISE CW 3266 - 1/4 " Square Trimpot(R) Trimming Potentiometer Standard Resistance Table Resistance (Ohms) 10 100 200 500 1,000 2,000 5,000 10,000 20,000 25,000 50,000 100,000 200,000 250,000 500,000 1,000,000 Resistance Code 100 101 201 501 102 202 502 103 203 253 503 104 204 254 504 105 Popular distribution resistance values listed in boldface. Special resistances available. 4.01 .71 (.158 .028) 4.01 .71 (.158 .028) 12.70 (.500) REF. 12.70 REF. (.500) 24.9 .76 (.980 .030) 8.9 +.76 /- 0.5 (.035 +.030/-.020) 8.9 +.76 /-.5 (.035 +.030/-.020) 3 2 3 4.0 .03 (.157 .001) DIA. 12.7 +0.3/-0.25 (.500 +.012/- .010) 25.9 0.76 (1.020 .030) 18 .76 (.709 .030) 18 +1.0/-0.5 (709 +.040/-.020) 12.7 +0.3/-0.25 (.500 +.012/-.010) 4.0 .03 (.157 .001) DIA. 4.32 .38 (.170 .015) 4.32 .38 (.170 .015) 2.54 ALL PINS IN-LINE ON CENTER (.100) MM DIMENSIONS: (INCHES) 1 1 18 .76 (.709 .030) 18 +1.0/-0.5 (709 +.040/-.020) 2 2.16 .25 (.085 .010) .43 .05 DIA. TYP. (.017 .002) 2.16 .25 (.085 .010) ALL PINS IN-LINE ON DIMENSIONS: 1000/REEL/BOX 2.54 CENTER (.100) MM (INCHES) 1000/REEL/BOX DIMENSIONS: MM (INCHES) REV. 05/16 "Trimpot" is a registered trademark of Bourns, Inc. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. 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The characteristics and parameters of a Bourns(R)WYVK\J[PUH\ZLYHWWSPJH[PVUTH]HY MYVT[OLKH[HZOLL[JOHYHJ[LYPZ[PJZHUKWHYHTL[LYZK\L[VP[OLJVTIPUH[PVUVM[OL)V\YUZ(R) product with other components PU[OL\ZLYZHWWSPJH[PVUVYPP[OLLU]PYVUTLU[VM[OL\ZLYHWWSPJH[PVUP[ZLSM;OLJOHYHJ[LYPZ[PJZHUKWHYHTL[LYZVMH)V\YUZ(R) WYVK\J[HSZVJHUHUKKV]HYPUKPLYLU[HWWSPJH[PVUZHUKHJ[\HSWLYMVYTHUJLTH]HYV]LY[PTL<ZLYZZOV\SKHS^HZ]LYPM the actual performance of the Bourns(R)WYVK\J[PU[OLPYZWLJPAJKL]PJLZHUKHWWSPJH[PVUZHUKTHRL[OLPYV^UPUKLWLUKLU[ Q\KNTLU[ZYLNHYKPUN[OLHTV\U[VMHKKP[PVUHS[LZ[THYNPU[VKLZPNUPU[V[OLPYKL]PJLVYHWWSPJH[PVU[VJVTWLUZH[LMVY KPLYLUJLZIL[^LLUSHIVYH[VYHUKYLHS^VYSKJVUKP[PVUZ <USLZZ)V\YUZOHZL_WSPJP[SKLZPNUH[LKHUPUKP]PK\HS)V\YUZ(R) product as meeting the requirements of a particular industry Z[HUKHYKLN0:6;: VYHWHY[PJ\SHYX\HSPAJH[PVULN<3SPZ[LKVYYLJVNUPaLK)V\YUZPZUV[YLZWVUZPISLMVYHU MHPS\YLVMHUPUKP]PK\HS)V\YUZ(R)WYVK\J[[VTLL[[OLYLX\PYLTLU[ZVMZ\JOPUK\Z[YZ[HUKHYKVYWHY[PJ\SHYX\HSPAJH[PVU<ZLYZ of Bourns(R) products are responsible for ensuring compliance with safety-related requirements and standards applicable to [OLPYKL]PJLZVYHWWSPJH[PVUZ Bourns(R)WYVK\J[ZHYLUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKMVY\ZLPUU\JSLHYSPMLZH]PUNSPMLJYP[PJHSVYSPMLZ\Z[HPUPUN HWWSPJH[PVUZUVYPUHUV[OLYHWWSPJH[PVUZ^OLYLMHPS\YLVYTHSM\UJ[PVUTHYLZ\S[PUWLYZVUHSPUQ\YKLH[OVYZL]LYLWYVWLY[ VYLU]PYVUTLU[HSKHTHNL<USLZZL_WYLZZSHUKZWLJPAJHSSHWWYV]LKPU^YP[PUNI[^VH\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZ on a case-by-case basis, use of any Bourns(R)WYVK\J[ZPUZ\JO\UH\[OVYPaLKHWWSPJH[PVUZTPNO[UV[ILZHMLHUK[O\ZPZH[ [OL\ZLYZZVSLYPZR3PMLJYP[PJHSHWWSPJH[PVUZPUJS\KLKL]PJLZPKLU[PALKI[OL<:-VVKHUK+Y\N(KTPUPZ[YH[PVUHZ*SHZZ000 KL]PJLZHUKNLULYHSSLX\P]HSLU[JSHZZPAJH[PVUZV\[ZPKLVM[OL<UP[LK:[H[LZ )V\YUZL_WYLZZSPKLU[PALZ[OVZL)V\YUZ(R)Z[HUKHYKWYVK\J[Z[OH[HYLZ\P[HISLMVY\ZLPUH\[VTV[P]LHWWSPJH[PVUZVUZ\JO WYVK\J[ZKH[HZOLL[ZPU[OLZLJ[PVULU[P[SLK(WWSPJH[PVUZ<USLZZL_WYLZZSHUKZWLJPAJHSSHWWYV]LKPU^YP[PUNI[^V H\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZVUHJHZLIJHZLIHZPZ\ZLVMHUV[OLY)V\YUZ(R)Z[HUKHYKWYVK\J[ZPUHUH\[VTV[P]L HWWSPJH[PVUTPNO[UV[ILZHMLHUK[O\ZPZUV[YLJVTTLUKLKH\[OVYPa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ourns(R)Z[HUKHYKWYVK\J[ZHYLUV[[LZ[LK[VJVTWS^P[O<UP[LK:[H[LZ-LKLYHS(]PH[PVU(KTPUPZ[YH[PVUZ[HUKHYKZNLULYHSS VYHUV[OLYNLULYHSSLX\P]HSLU[NV]LYUTLU[HSVYNHUPaH[PVUZ[HUKHYKHWWSPJHISL[VWYVK\J[ZKLZPNULKVYTHU\MHJ[\YLKMVY \ZLPUHPYJYHM[VYZWHJLHWWSPJH[PVUZ)V\YUZL_WYLZZSPKLU[PALZ)V\YUZ(R) standard products that are suitable for use in aircraft VYZWHJLHWWSPJH[PVUZVUZ\JOWYVK\J[ZKH[HZOLL[ZPU[OLZLJ[PVULU[P[SLK(WWSPJH[PVUZ<USLZZL_WYLZZSHUKZWLJPAJHSS HWWYV]LKPU^YP[PUNI[^VH\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZVUHJHZLIJHZLIHZPZ\ZLVMHUV[OLY)V\YUZ(R) standard WYVK\J[PUHUHPYJYHM[VYZWHJLHWWSPJH[PVUTPNO[UV[ILZHMLHUK[O\ZPZUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKHUKPZH[ the user's sole risk. ;OL\ZLHUKSL]LSVM[LZ[PUNHWWSPJHISL[V)V\YUZ(R) custom products shall be negotiated on a case-by-case basis by Bourns and the user for which such Bourns(R)J\Z[VTWYVK\J[ZHYLZWLJPHSSKLZPNULK(IZLU[H^YP[[LUHNYLLTLU[IL[^LLU)V\YUZ HUK[OL\ZLYYLNHYKPUN[OL\ZLHUKSL]LSVMZ\JO[LZ[PUN[OLHIV]LWYV]PZPVUZHWWSPJHISL[V)V\YUZ(R) standard products shall also apply to such Bourns(R) custom products. 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