Features ■ 1-1/4 ” Rectangular / Multiturn Wirewound / Industrial / Sealed ■ Panel mount option available ■ Listed on the QPL per MIL-PRF-27208 ■ For trimmer applications/processing guidelines, click here RT12 - Trimpot® Trimming Potentiometer Electrical Characteristics Standard Resistance Range ...................................10 to 20K ohms (see standard resistance table) Resistance Tolerance .............. ±5 % std. Absolute Minimum Resistance ...........................0.1 % or 1 ohm max. (whichever is greater) Noise .....................100 ohms ENR max. Resolution............ See Resistance Table Insulation Resistance ............... 500 vdc. 1,000 megohms min. Dielectric Strength Sea Level ............................ 1,500 vac 70,000 Feet ............................ 400 vac Adjustment Travel .............22 turns nom. Environmental Characteristics Power Rating @ 70 °C ................. 1 watt Power Rating @ 150 °C ............... 0 watt Temperature Range ....-55 °C to +150 °C Temperature Coefficient ......±50 ppm/°C Seal Test ...................... 85 °C Fluorinert* (pin styles only) Humidity........ MIL-STD-202 Method 106 96 hours 2 % ΔTR, 100 Megohms IR) Vibration ............. 30 G (1 % ΔTR; 0.5 % + resolution DVR) Shock................ 100 G (1 % ΔTR; 0.5 % + resolution ΔVR) Load Life ....1,000 hours 1 watt @ 70 °C (2 % ΔTR) Rotational Life...... 200 cycles (2 % ΔTR) Physical Characteristics Torque............................. 5.0 oz-in. max. Mechanical Stops ................. Wiper idles Terminals ........ Solderable pins and lugs Flexible leads ..... (7 strands of 30 AWG) Weight ....................................... 0.10 oz. Marking .........Manufacturer’s trademark, resistance code, terminal numbers, date code, manufacturer’s model number and style Wiper ............... 50 % (Actual TR) ±10 % Flammability ..........................U.L. 94V-0 Standard Packaging P&Y Style .................. 10 pcs. per tube L Style ........................ 25 pcs. per bag Adjustment Tool .............................. H-90 Product Dimensions How To Order RT12C2L Common Dimensions RT12 C2 P 101 MIL-PRF-27208 Model 31.75 (1.25) 3.18 (.125 ) 25.4 (1.000) 1.47 ± .56 (.058 ± .022) Characteristic C = ±50 ppm/°C Temp. Coeff. Max. 2 = 85 °C Rating Temp. 150 °C Max. Operating Temp. Terminal Style ADJ. SLOT 2.92 ± .38 DIA. (.115 ± .015) .64 WIDE X (.025) .79 DEEP X (.031) 2.36 DIA. (.093) MTG. HOLES (2) 4.83 (.190) 6.10 TYP. (.240) 152.4 LEADS MIN. LENGTH (6.000) 8.00 ± .38 (.315 ± .015) 2.67 (.105 ) 6.10 TYP. (.240) Resistance Code Standard Resistance Table Resistance (Ohms) 10 20 50 100 200 500 1,000 2,000 5,000 10,000 20,000 3.43 ± .38 (.135 ± .015) RED RT12C2P .71 ± .03 (.028 ± .001) DIA. TYP. 2 1 3 17.78 (.700) 22.86 (.900) 6.60 (.260) Resistance Code 100 200 500 101 201 501 102 202 502 103 203 12.70 ± .79 (.500 ± .031) YELLOW CCW 2 3 7.62 (.300) 17.78 (.700) WIPER 3 1 CLOCKWISE DIMENSIONS: TOLERANCES: ± 0.25 (.010) RT12C2Y 1 2 Nominal Resolution (Percent) 2.40 1.90 1.40 1.00 0.86 0.89 0.72 0.58 0.43 0.34 0.31 6.35 (.250) 2.54 (.100) .71 ± .03 DIA. TYP. (.028 ± .001) 12.70 ± .79 (.500 ± .031) 2.54 (.100) REV. 04/14 “Trimpot” is a registered trademark of Bourns, Inc. *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. The device characteristics and parameters in this data 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. GREEN CW MM (INCHES) EXCEPT WHERE NOTED