Features n 3/8 Square/ Multiturn / Cermet / Industrial / Sealed n Five popular terminal styles n Standoffs n RoHS compliant* version available n For trimmer applications/processing guidelines, click here 3299 - 3/8 Square Trimpot Trimming Potentiometer Standard Resistance Table Electrical Characteristics PrProduct Dimensionsoduct Dimensions Standard Resistance Range 3299P Resistance Resistance Common Dimensions (Ohms) Code ................................10 to 2 megohms 2.54 10 100 (see standard resistance table) 1.09 .254 .38 (.100) 20 200 Resistance Tolerance ........... 10 % std. (.043 .010) (.015) 2.54 50 500 (.100) 1.12 .254 (tighter tolerance available) 100 101 9.53 (.044 .010) 200 201 Absolute Minimum Resistance (.375) 500 501 ........................... 1 % or 2 ohms max. 1,000 102 1.52 (whichever is greater) 6.22 1.14 2,000 202 (.060) (.245 .045) 5,000 502 Contact Resistance Variation 10.03 10,000 103 6.10 +.30/-.25 ........................ 1.0 % or 3 ohms max. (.395) 20,000 203 (.240 +.012/-.010) 3 (whichever is greater) .51 25,000 253 ADJ. SLOT DIA. TYP. 2 Adjustability (.020) 50,000 503 2.29 DIA. 1 100,000 104 (.090) Voltage .................................. 0.01 % 200,000 204 .56 Resistance ............................ 0.05 % WIDE X (.022) 250,000 254 5.23 Resolution ................................... Infinite .64 2.54 500,000 504 DEEP X (.206) (.025) (.100) Insulation Resistance ...............500 vdc. 1,000,000 105 BOTTOM VIEW 2,000,000 205 1,000 megohms min. 1.91 3299W Dielectric Strength Popular distribution resistance values listed in (.075) 2.54 boldface. Special resistances available. Sea Level................................ 900 vac (.100) 70,000 Feet ............................ 350 vac 3 Effective Travel ................. 25 turns nom. How To Order 2 3299 W - 1 - 103 LF 1 Environmental Characteristics 2.54 BOTTOM VIEW Model Power Rating (300 volts max.) (.100) 70 C ......................................0.5 watt Style MIN. 125 C .......................................0 watt 3299X Standard or Modified 1.91 Temperature Range ...-55 C to +125 C 2.54 2.54 (.075) Product Indicator Temperature Coefficient ... 100 ppm/C (.100) (.100) -1 = Standard Product 3 Seal Test ......................85 C Fluorinert 2 Resistance Code Humidity .......MIL-STD-202 Method 103 1 Terminations 96 hours BOTTOM VIEW LF = 100 % Tin-plated (RoHS compliant) (2 % TR, 10 Megohms IR) Blank = 90 % Tin / 10 % Lead-plated 1.91 3299Y Vibration ....... 20 G (1 % TR 1 % VR) 2.54 (Standard) 2.54 (.075) Shock ......... 100 G (1 % TR 1 % VR) (.100) (.100) 3 Consult factory for other available options. Load Life 2 .............1,000 hours 0.5 watt 70 C 1 (3 % TR 3 % or 3 ohms, 2.54 (.100) whichever is greater, CRV) BOTTOM VIEW Rotational Life .......................200 cycles (4 % TR 3 % or 3 ohms, 3299Z 1.91 2.54 2.54 (.075) whichever is greater, CRV) (.100) (.100) 3 Physical Characteristics 2 Torque .............................3.0 oz-in. max. 1 WARNING Cancer and 2.54 Mechanical Stops .................Wiper idles (.100) Reproductive Harm Terminals .......................Solderable pins BOTTOM VIEW www.P65Warnings.ca.gov Weight ..................................... 0.035 oz. Marking ...........................Manufacturers WIPER 2 REV. 08/19 trademark, resistance code, *RoHS Directive 2015/863, Mar. 31, 2015 and Annex CCW CW 1 3 wiring diagram, date code, Trimpot is a trademark of Bourns, Inc. CLOCKWISE manufacturers model Fluorinert is a registered trademark of 3M Co. number and style Specifications are subject to change without notice. MMMM Users should verify actual device performance in their Wiper ...............50 % (Actual TR) 10 % DIMENSIONS:DIMENSIONS: (INCHES)(INCHES) specicfi applications. The products described herein and Flammability ..........................U.L. 94V-0 this document are subject to specific legal disclaimers as 0.25 0.25 Standard Packaging .....50 pcs. per tube TOLERANCES:TOLERANCES: EXCEPTEXCEPT WHEREWHERE NOTEDNOTED set forth on the last page of this document, and at (.010)(.010) Adjustment Tool ..............................H-90 www.bourns.com/docs/legal/disclaimer.pdf. 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