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 Standard Resistance Table Electrical Characteristics PrProduct Dimensionsoduct Dimensions 3299P Standard Resistance Range Resistance Resistance Common Dimensions (Ohms) Code ................................10 to 2 megohms 2.54 10 100 (see standard resistance table) (.100) 1.09 .38 2.54 20 200 (.043) Resistance Tolerance ........... 10 % std. (.015) (.100) 50 500 1.12 (tighter tolerance available) 100 101 9.53 (.044) 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 6.10 +.30/-.25 10,000 103 (.395) ........................ 1.0 % or 3 ohms max. (.240 +.012/-.010) 20,000 203 3 (whichever is greater) .51 25,000 253 ADJ. SLOT DIA. TYP. 2 (.020) Adjustability 50,000 503 2.29 DIA. 1 (.090) 100,000 104 Voltage ..................................0.01 % .56 200,000 204 WIDE Resistance ............................0.05 % X (.022) 250,000 254 5.23 Resolution ................................... In nite .64 2.54 500,000 504 DEEP (.206) X (.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 E ective Travel .................25 turns nom. How To Order 2 1 3299 W - 1 - 103 LF 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 1.91 Standard or Modi ed Temperature Range ...-55 C to +125 C 2.54 2.54 (.075) Product Indicator (.100) (.100) Temperature Coe cient ... 100 ppm/C 3 -1 = Standard Product 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 2.54 (.075) (Standard) 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 3299Z (4 % TR 3 % or 3 ohms, 1.91 2.54 2.54 (.075) whichever is greater, CRV) (.100) (.100) 3 Physical Characteristics 2 1 Torque .............................3.0 oz-in. max. 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. 04/14 CLOCKWISE manufacturers model Trimpot is a registered trademark of Bourns, Inc. number and style Fluorinert is a registered trademark of 3M Co. MM MM 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 Speci cations are subject to change without notice. TOLERANCES: TOLERANCES: EXCEPT WHERE NOTEDEXCEPT WHERE NOTED (.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 speci c applications. *RoHS COMPLIANT *RoHS COMPLIANT VERSIONS VERSIONS AVAILABLE AVAILABLE