PL IA NT Features Model TC73 is obsolete and not recommended for new designs. Model TC33 is preferred. CO M ■ Recommended for reflow processing *R oH S ■ Rotor design compatible with pick and place and automatic adjustment equipment ■ Supplied in 8 mm embossed tape, compatible with automatic assembly equipment ■ Carbon element ■ RoHS compliant* - see processing information on lead free surface mount trimmers TC73 - Trimpot® Trimming Potentiometer Electrical Characteristics Standard Resistance Range ............................... 500 to 1 megohm (see standard resistance table) Resistance Tolerance ........... ±30 % std. Absolute Minimum Resistance ≤ 1K Ohms ................... 20 ohms max. >1K Ohms ..................2 % max. of TR Contact Resistance Variation ............................................ 5 % max. Resolution ................................... Infinite Adjustment Angle ............260 ° ±20 °(-2) Environmental Characteristics Power Rating (50 VDC max.) 50 °C .................................... 0.05 watt Temperature Range ..... -25 °C to +85 °C Temperature Coefficient ... ±250 ppm/°C Humidity ................................... 95 %RH 500 hours TRS max. ....................... +15 % to -2 % Load Life ..........@ 50 °C rated power 500 hours TRS ±5 % Rotational Cycling .....................20 turns TRS ±20 % Product Dimensions How To Order TC73 X - 1 - 103 E TC73X/W-2 3.10 (.122) 3.60 (.141) 1.60 (.062) 2 2.20 (.086) 1.50 (.059) 1.80 (.070) Orientation of Parts In Tape: Style X: Terminals Away From Sprocket Holes Style W: Terminals in direction to sprocket holes (preferred) 0.50 (.019) 1.80 (.070) Resistance Code 3 1 Style Standard or Modified Product Indicator 1 = Mechanical rotation stop (preferred) 2 = Continuous RESISTANCE 1.90 (.075) Model E T E L O S B O Physical Characteristics Torque....................... 10-150 g-cm max. Mechanical Angle -1 ......................................260 ° ± 20 ° -2 ...................................... Continuous Electrical Angle Both .................................. 260 ° nom. Marking..................... Part marking code Standard Packaging ............................... 2000 pcs./7 ” reel Soldering Process Hand Soldering... Soldering Iron of 20 W or less controlled at 280 °C for about 3 sec. while applying solder Reflow Soldering ....... Peak temperature or reflow oven should be set to 240 °C max. 0.80 (.031) Embossed Tape Designator E = 2000 pcs. per reel, 8 mm tape Consult factory for other available options. 0.80 (.031) 0.65 (.025) 1.15 (.059) Standard Resistance Table 1.15 (.059) 1.80 DIA. (.070) 0.55 (.021) 0.35 (.013) DRIVER SLOT DEPTH 0.20 (.008) DRIVER SLOT SHAPE SUGGESTED PCB LAYOUT 1.30 (.051) 1.25 (.049) 1.25 (.049) 1.20 (.047) 1.20 (.047) 0.80 (.031) 2 CCW WIPER 3 1 CLOCKWISE DIMENSIONS: REV. 03/10 *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. “Trimpot” is a registered trademark of Bourns, Inc. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. MM (INCHES) Part Marking Code 52 13 23 53 14 24 54 15 25 55 16 Resistance Code 501 102 202 502 103 203 503 104 204 504 105 Popular distribution resistance values listed in boldface. Special resistances available. 0.80 (.031) 1.30 (.051) Resistance (Ohms) 500 1,000 2,000 5,000 10,000 20,000 50,000 100,000 200,000 500,000 1,000,000 CW