*R oH V SC AV ER OM AI SIO PL LA N IA BL S NT E Features ■ Four-Turn / Cermet / Industrial / Sealed ■ Unique planetary drive offers precise wiper ■ For trimmer applications/processing guidelines, click here setting of a multiturn in a single-turn package size ■ Top and side adjust styles ■ RoHS compliant* version available 3339 - 5/16 ” Round Trimpot® Trimming Potentiometer Electrical Characteristics Standard Resistance Range ................................. 10 to 1 megohm (see standard resistance table) Resistance Tolerance ........... ±10 % std. (tighter tolerance available) Absolute Minimum Resistance ........................... 1 % or 2 ohms max. (whichever is greater) Contact Resistance Variation ........................... 3 % or 3 ohms max. (whichever is greater) Adjustability Voltage .................................. ±0.05 % Resistance .............................. ±0.1 % Resolution ................................... Infinite Insulation Resistance ............... 500 vdc. 1,000 megohms min. Dielectric Strength Sea Level................................ 600 vac 80,000 Feet ............................ 250 vac Effective Travel ...................4 turns nom. Environmental Characteristics Power Rating (300 volts max.) 85 °C ...................................... 0.5 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 (3 % ΔTR, 10 Megohms IR) Vibration ....... 30 G (1 % ΔTR; 1 % ΔVR) Shock ......... 100 G (1 % ΔTR; 1 % ΔVR) Load Life ..1,000 hours 0.5 watt @ 85 °C (3 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) Rotational Life .......................200 cycles (3 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) Physical Characteristics Torque................................ 3 oz-in. max. Mechanical Stops ................. Wiper idles Terminals .......................Solderable pins Weight ....................................... 0.02 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 Product Dimensions 2 3339H Common Dimensions (Top Adjust) 4.78 MIN. (.188) 6.35 (.250) ADJ. CROSS SLOT 2.54 LONG X (.100) .64 WIDE X (2 PLACES) (.025) .76 DEEP X (.030) .38 90° ± 1° (.015) REF. 2.54 ± .025 (.10 ± .01) 1 3 CCW WIPER 3 1 CW CLOCKWISE DIMENSIONS: TOLERANCES: ± 0.25 (.010) MM (INCHES) EXCEPT WHERE NOTED How To Order 3339 H - 1 - 103 LF .51 (.020) Model 2 7.62 DIA. .43 ± .05 (.300) (.017 ± .002) DIA. 3339P 2.54 (.100) 2.54 (.100) 6.35 (.250) .51 (.020) Standard or Modified Product Indicator -1 = Standard Product Resistance Code 2.54 (.100) 1 7.62 DIA. (.300) Style 2.54 ± .025 (.10 ± .01) 3 2 Consult factory for other available options. Standard Resistance Table 3339S Common Dimensions (Side Adjust) 8.00 ± .38 (.315 ± .015) 7.62 (.300) DIA. 5.97 (.235) 9.53 ± .38 (375 ± .015) .64 (.025) 5.54 ± .38 (.218 ± .015) .38 2 (.015) MIN. 1 8.13 ± .38 (.320 ± .015) 3 2.54 (.100) 5.08 (.200) 3339W 8.00 ± .38 (.315 ± .015) .43 ± .05 (.017 ± .002) DIA. 4.57 (.180) 2.54 (.100) 5.97 (.235) 9.53 ± .38 (375 ± .015) .64 (.025) 8.13 ± .38 (.320 ± .015) REV. 07/11 *RoHS Directive 2002/95/EC Jan 27, 2003 including Annex. “Trimpot” is a registered trademark of Bourns, Inc. †“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. 5.54 ± .38 (.218 ± .015) .38 (.015) MIN. 2 1 2.54 (.100) 5.08 (.200) 3 Terminations LF = 100 % Tin-plated (RoHS compliant) Blank = 90 % Tin / 10 % Lead-plated (Standard) 4.57 (.180) 2.54 (.100) 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.