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 TrimpotTrimming 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 2.54 Mechanical Stops .................Wiper idles (.100) Terminals .......................Solderable pins BOTTOM VIEW Weight ..................................... 0.035 oz. Marking ...........................Manufacturers WIPER 2 trademark, resistance code, CCW 3 CW 1 wiring diagram, date code, REV. 11/16 CLOCKWISE manufacturers model Trimpot is a registered trademark of Bourns, Inc. number and style Fluorinert is a registered trademark of 3M Co. MMMM Wiper ...............50 % (Actual TR) 10 % DIMENSIONS:DIMENSIONS: *RoHS Directive 2002/95/EC Jan. 27, 2003 including (INCHES)(INCHES) Flammability ..........................U.L. 94V-0 annex and RoHS Recast 2011/65/EU June 8, 2011. 0.25 0.25 Standard Packaging .....50 pcs. per tube Specifications are subject to change without notice. TOLERANCES:TOLERANCES: EXCEPTEXCEPT WHEREWHERE NOTEDNOTED (.010)(.010) The device characteristics and parameters in this data Adjustment Tool ..............................H-90 sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. *RoHS COMPLIANT *RoHS COMPLIANT VERSIONS VERSIONS AVAILABLE AVAILABLE *RoHS COMPLIANT *RoHS COMPLIANT LEAD FREE LEAD FREE LEAD FREE LEAD FREE VERSIONS ARE VERSIONS ARE RoHS COMPLIANT* RoHS COMPLIANT*