PL IA NT Features *R oH S CO M ■ ■ ■ ■ ■ 51 mm (2 ”) diameter, single-turn conductive plastic Excellent resolution High rotational life Bushing mount Gangable up to 10 cups Model 6674 is currently available, although not recommended for new designs. Model 6657 is preferred. ■ ■ Non-standard features and specifications available Ball bearings 6674 - Precision Potentiometer Electrical Characteristics1 Product Dimensions Standard Resistance Range....................................................................................1 K to 100 K ohms Total Resistance Tolerance .........................................................................................................±10 % Independent Linearity ..............................................................................................................±0.25 % Effective Electrical Angle .......................................................................................................350 ° ±2 ° End Voltage ...............................................0.1 % maximum (0.2 % at 2 K ohms, 0.4 % at 1 K ohms) Output Smoothness .....................................................................................................................0.1 % Dielectric Strength (VRMS) Sea Level ..........................................................................................................1,000 VAC minimum Power Rating (Voltage Limited By Power Dissipation or 350 VAC, Whichever is Less) +70 °C....................................................................................................................................2 watts +125 °C....................................................................................................................................0 watt Insulation Resistance (300 VDC)..................................................................1,000 megohms minimum Resolution..................................................................................................................Essentially infinite 22.23 ± .79 (7/8 ± 1/32) 6.35 MIN. (.25) 9.53 ± .40 (3/8 ± 1/64) SLOT 1.19 WIDE X (.047) 1.60 DEEP (.063) .38 X 45 ° ± 10 ° (.015) CHAMFER 50.8 (2.00) 10.317+.000/-.051 (.4062+.000/-.002) Environmental Characteristics1 Operating Temperature Range...................................................................................+1 °C to +125 °C Storage Temperature Range.....................................................................................-65 °C to +125 °C Temperature Coefficient Over Storage Temperature Range.................................................±5 % TRS Vibration .........................................................................................................................................15 G Wiper Bounce ...........................................................................................0.1 millisecond maximum Total Resistance Shift ..............................................................................................±2 % maximum Shock .............................................................................................................................................60 G Wiper Bounce ...........................................................................................0.1 millisecond maximum Load Life ............................................................................................................1,000 hours, 1.5 watts Total Resistance Shift ............................................................................................±10 % maximum Rotational Life (No Load) .........................................................................25,000,000 shaft revolutions Total Resistance Shift ............................................................................................±10 % maximum Moisture Resistance (MIL-STD-202, Method 106) Total Resistance Shift ............................................................................................±10 % maximum IP Rating ........................................................................................................................................IP 40 6.342+.000/-.008 3/8 "-32 (.2497+.0000/-.0003) UNEF DIA. SHAFT 15.24 ± .79 (.600 ± .031) 5.08 ADD (.20) FOR EACH ADDITIONAL CUP. 15 ° ±3° 3 15 ° ±3° 1 2 90 ° MAX. 29.59 MAX. (1.165) Mechanical Characteristics1 Mechanical Angle ................................................................................................................Continuous Torque (Starting & Running) ............................................................0.53 N-cm (0.75 oz.-in.) maximum Mounting................................................................................14-16 N-cm (20-23 oz.-in.) maximum Shaft Runout................................................................................................0.025 mm (0.001 in.) T.I.R. Shaft End Play ...............................................................................................0.08 mm (0.003 in.) T.I.R. Shaft Radial Play ...........................................................................................0.10 mm (0.004 in.) T.I.R. Backlash ........................................................................................................................0.1 ° maximum Weight ..........................................................................................................................................90 gm Terminals.........................................................................................................Side exit turret terminals Soldering Condition....................Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025 ” wire diameter. Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean flux. Marking ................................Manufacturer’s name and part number, resistance value and tolerance, linearity tolerance, wiring diagram, and date code Ganging (Multiple Section Potentiometers) ...............................................................10 cup maximum Hardware ....................................................One lockwasher (H-37-2) and one mounting nut (H-38-2) is shipped with each potentiometer. 1 At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. 19.05 ± .13 (.780 ± .005) OPTIONAL A/R PIN TOLERANCES: EXCEPT WHERE NOTED .51 .13 DECIMALS: .XX ± .XXX (.020), (.005) FRACTIONS: ±1/64 MM. DIMENSIONS: (IN.) 2 CCW WIPER 3 1 CW CLOCKWISE Recommended Part Numbers Part Number* 6674S-1-102 6674S-1-502 6674S-1-103 Resistance (Ω) 1,000 5,000 10,000 BOLDFACE LISTINGS ARE IN STOCK AND READILY AVAILABLE THROUGH DISTRIBUTION. FOR OTHER OPTIONS CONSULT FACTORY. REV. 06/06 *RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.