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Technical content

Features

■ 3/8 ” Square/ Multiturn / Cermet / Industrial / Sealed ■ Five popular terminal styles ■ Standoffs ■ RoHS compliant* version available ■ For trimmer applications/processing guidelines, click here 3299 - 3/8 ” Square Trimpot ® Trimming Potentiometer “Trimpot” is a registered trademark of Bourns, Inc. †“Fluorinert” is a registered trademark of 3M Co. *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifi 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 specifi c applications.

Electrical Characteristics

(see standard resistance table) (tighter tolerance available) Absolute Minimum Resistance (whichever is greater) Contact Resistance Variation (whichever is greater) Adjustability 1,000 megohms min. Dielectric Strength Environmental Characteristics Power Rating (300 volts max.) Temperature Range ... -55 °C to +125 °C Temperature Coeffi cient ... ±100 ppm/°C 96 hours (2 % ΔTR, 10 Megohms IR) Load Life (3 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) (4 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) Physical Characteristics trademark, resistance code, wiring diagram, date code, manufacturer’s model number and style Product Dimensions 1 3 CW CLOCKWISE CCW

2 WIPER

(Ohms) Code 10 100 20 200 50 500 100 101 200 201 500 501 1,000 102 2,000 202 5,000 502 10,000 103 20,000 203 25,000 253 50,000 503 100,000 104 200,000 204 250,000 254 500,000 504 1,000,000 105 2,000,000 205 REV. 04/14 TOLERANCES: ± 0.25 EXCEPT WHERE NOTED (.010) DIMENSIONS: MM (INCHES) How To Order

3299 W - 1 - 103 LF

Standard or Modifi ed Product Indicator -1 = Standard Product Resistance Code Terminations LF = 100 % Tin-plated (RoHS compliant) Blank = 90 % Tin / 10 % Lead-plated (Standard) Consult factory for other available options. Popular distribution resistance values listed in boldface. Special resistances available. 1.52 (.060) BOTTOM VIEW BOTTOM VIEW BOTTOM VIEW BOTTOM VIEW BOTTOM VIEW 3299P Common Dimensions 1.09 (.043) 6.10 +.30/-.25 (.240 +.012/-.010) 3299W 1.91 (.075) 3299X 3299Y 3299Z 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 2.54 (.100) 1.91 (.075) 1.91 (.075) 1.91 (.075) 2.54 (.100) MIN. 2.54 (.100) 2.54 (.100) 2.54 (.100) .51 (.020) DIA. TYP. 5.23 (.206) 10.03 (.395) .38 (.015) 9.53 (.375) 1.12 (.044) 6.22 ± 1.14 (.245 ± .045) ADJ. SLOT 2.29 (.090) .56 (.022) .64 (.025) WIDEX X DEEP DIA. *RoHS COMPLIANTVERSIONS AVAILABLE Product Dimensions TOLERANCES: ± 0.25 EXCEPT WHERE NOTED (.010) DIMENSIONS: MM (INCHES) *RoHS COMPLIANTVERSIONS AVAILABLE