oH VE S CO AV R M AI SIO PL LA N IA BL S NT E Features / Cermet / Industrial / Sealed ■ Standoffs allow thorough PC board washing ■ Tape and reel packaging available ■ Patent #4427966 drive mechanism ■ RoHS compliant* version available *R ■ Multiturn 3266 - 1/4 ” Square Trimming Potentiometer Electrical Characteristics Standard Resistance Range ....................................10 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.....................................±0.02 % Resistance ...............................±0.05 % Resolution.....................................Infinite Insulation Resistance ................500 vdc. 1,000 megohms min. Dielectric Strength Sea Level ..................................600 vac 80,000 Feet...............................250 vac Effective Travel..................12 turns nom. Environmental Characteristics Power Rating (300 volts max.) 70 °C ......................................0.25 watt 150 °C .........................................0 watt Temperature Range ....-55 °C to +150 °C Temperature Coefficient ....±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 2 3266W Common Dimensions 1.24 ±.25** (.049 ±.010) 3266Y 6.71 ±.38 TYP. (.264 ±.015) ADJ. SLOT 1.78 DIA. (.070) .51 WIDE X (.020) 1.22 ±.25 .64 (.048 ±.010) X DEEP (.025) 4.50 ±.38** (.177 ±.015) 7.24 ±.51 TYP.** (.285 ±.020) 4.78 ±.38** (.188 ±.015) 1.24 ±.25** (.049 ±.010) 4.50 ±.38 (.177 ±.015) 1 2 3 1 2 3 6.85 ±.51 (.270 ±.020) .46 ±.13 (.018 ±.005) 4.32 (.170) 3266Z 1.02 (.040) 3266P 1 2 3 0.76 ± .25 (.030 ± .010) 4.42 ± .51 (.174 ±.020) 2.54 (.100) 2.54 (.100) 3.18 (.125) 2.16 (.085) (.030) 1.52 (.06) 1.02 (.040 ) 1.22 ±.25 (.048 ±.010) 0.46 ±.13 MIN. (.018 ±.005) .46 ±.03 DIA.** (.018 ±.001) 2.54 2.54 (.100) .76** (.100) 2.54 (.100) 6.71 ±.38 (.264 ±.015) 1.24 ±.25** (.049 ±.010) 7.24 ±.51 (.285 ±.020) 4.50 ±.38 (.177 ±.015) 1.22 ±.25 (.048 ±.010) 1.02 (.040) 0.38 MIN. (.015) 1.02 ±.25 (.040 ±.010) 4.50 ±.38 (.177 ±.015) 1 2 3 6.85 ±.51 (.270 ±.020) 2.54 ± .25 (.100 ± .010) 2.54 ± .25 (.100 ± .010) 6.48 ±.51 (.255 ±.020) 4.32 (.170) 2.54 ± .25 (.100 ± .010) 2.54 (.100) 2.16 (.085) 3266X 1.24 ±.25 (.049 ±.010) 1.02 (.040) 1 2 3 2.54 (.100) .46 ±.13 MIN.** (.018 ±.005) 2.54 (.100) MM (INCHES) How to Order 3266 W - 1 - 103 __ LF Model .76 (.030) 2.54 (.100) 3.18 (.125) TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED DIMENSIONS ARE: 1.22 ±.25 (.048 ±.010) 2.54 (.100) Style Standard or Modified Product Indicator -1 = Standard Product 1.02 (.040) Resistance Code **COMMON DIMENSIONS 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) WIPER Consult factory for other available options. CCW 3 1 CLOCKWISE CW *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. †“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. 3266 - 1/4 ” Square Trimming Potentiometer Standard Resistance Table Resistance (Ohms) 10 20 50 100 200 500 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 100 200 500 101 201 501 102 202 502 103 203 253 503 104 204 254 504 105 Popular distribution resistance values listed in boldface. Special resistances available. Packaging Specifications SIDE ADJUST 3266Z-1 TOP ADJUST 3266Y-1 3.81 ± .71 (.150 ± .028) 3.81 ± .71 (.150 ± .028) 12.70 (.500) REF. 12.70 REF. (.500) 24.9 + .76 (.980 + .030) 8.9 + .76 /- .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) 18 + 1.0/ - 0.5 (709 + .040/ - .020) 12.7 + 0.3/ - 0.25 (.500 + .012/ - .010) 1000/REEL/BOX Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 4.0 ± .03 (.157 ± .001) DIA. 4.32 ± .38 (.170 ± .015) 2.16 ± .25 (.085 ± .010) .43 ± .05 DIA. TYP. (017 ± .002) 2.16 ± .25 (.085 ± .010) ALL PINS IN-LINE ON DIMENSIONS: 2.54 CENTER (.100) MM (INCHES) 1000/REEL/BOX Meets EIA Specification 468. REV. 03/07 25.9 ± 0.76 (1.020 ± .030) 3.81 ± .71 (.150 ± .028) 4.32 ± .38 (.170 ± .015) 2.54 ALL PINS IN-LINE ON CENTER (.100) MM DIMENSIONS: (INCHES) 1 18 ± .76 (.709 ± .030) 18 ± .76 (.709 ± .030) 18 + 1.0/ - 0.5 (709 + .040/ - .020) 2 1