*R oH VE S CO AV R M AI SIO PL LA N IA BL S NT E Features Non-RoHS compliant versions are currently available but not recommended for new designs. See Product Obsolescence Memo for details. ■ Repeatable settings ■ Resolution to 0.001 % ■ Digital display provides excellent readability ■ Snap-in panel mount 3680 Family - Precision Potentiometer Electrical Characteristics1 Product Dimensions Standard Resistance Range.........................................................................................10 ohms to 1 megohm Total Resistance Tolerance.......................................................................................................................±3 % Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Sea Level .................................................................................................................... 1,000 VAC minimum Power Rating (Voltage Limited By Power Dissipation or 500 VAC, Whichever is Less) +25 °C ............................................................................................................................................. 2 watts +85 °C ................................................................................................................................................ 0 watt Insulation Resistance (500 VDC) ........................................................................... 1,000 megohms minimum Resolution 3681 .....................................................................................................................................................10 % 3682 .......................................................................................................................................................1 % 3683 ....................................................................................................................................................0.1 % 3684 ..................................................................................................................................................0.01 % 3685 ................................................................................................................................................0.001 % Absolute Minimum Resistance .......................................... 3 ohms or 0.2 % maximum (whichever is greater) Accuracy (Dial Reading to Output Ratio)................................................................................±1.0 % full scale 3680 a 1 2 3 3 2 1 Environmental Characteristics1 Operating Temperature Range .............................................................................................. -25 °C to +85 °C Storage Temperature Range ................................................................................................. -25 °C to +85 °C Temperature Coefficient Over Storage Temperature Range ...................................... ±100 ppm/°C maximum Vibration ................................................................................................................................................... 10 G Wiper Bounce ...................................................................................................... 0.1 millisecond maximum Total Resistance Shift .......................................................................................................... ±1 % maximum Voltage Ratio Shift ............................................................................................................ ±0.2 % maximum Shock........................................................................................................................................................ 50 G Wiper Bounce ...................................................................................................... 0.1 millisecond maximum Total Resistance Shift .......................................................................................................... ±1 % maximum Voltage Ratio Shift ............................................................................................................ ±0.2 % maximum Load Life .......................................................................................................................... 1,000 hours, 2 watts Total Resistance Shift .......................................................................................................... ±2 % maximum Rotational Life..................................................................................... 75,000 button operations each decade Total Resistance Shift .......................................................................................................... ±2 % maximum IP Rating .................................................................................................................................................. IP 40 c d b 7.77 ± .38 (.306 ± .015) Mechanical Characteristics1 Weight .............................................3681 (9 gm); 3682 (16 gm); 3683 (23 gm); 3684 (30 gm); 3685 (37 gm) Terminals ............................................................................ 2.79 mm (0.11 in.) wide x .41 mm (.016 in.) thick, tinned solder lugs for 3 #20 AWG wires Soldering Condition Manual Soldering...................................................................... 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire; 370 °C (700 °F) max. for 3 seconds Wave Soldering ................................96.5Sn/3.0Ag/0.5Cu solder with no-clean flux; 260 °C (500 °F) max. for 5 seconds Wash processes ............................................................................................................. Not recommended Marking ...........................................Manufacturer’s name and part number, resistance value and date code. Ganging (Multiple Section Potentiometers) ........................................................... Up to 5 decades maximum Readout Marking ................................................................................................................... 10 positions, 0-9 Actuating Force .............................................................................................. 19 to 29 oz. on detent decades Actuating Force Variation ........................................................................................................ 4 oz. maximum e 23.62 (.93) 20.57 (.810) 8.38 ± .38 (.33 ± .015) PANEL .81 (.032) 3.18 MAX. (.125) MIN. 3.18 (.125) 26.67 (1.050) 1 At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. NOTE: Terminals 1 & 3 are reversed from illustration for models 3682 and 3684. Product Dimensions Dimensions 7.87 (.31) Weight (Approx.) Model a b c d e ±.381 (±.015) oz. gms. 3681 3682 3683 3684 3685 16.51 (.650) 26.67 (1.05) 37.08 (1.46) 47.50 (1.87) 57.66 (2.270) 14.99 (.590) 25.15 (.99) 35.31 (1.39) 45.47 (1.79) 55.63 (2.190) — 10.67 (.42) 18.54 (.73) 30.73 (1.21) 39.12 (1.540) 9.91 (.39) 11.94 (.47) 11.94 (.47) 11.94 (.47) 11.94 (.47) 4.19 (.165) 8.38 (.330) 4.19 (.165) 8.38 (.330) 4.19 (.165) .336 .576 .824 1.072 1.320 9.5 16.5 23.5 30.5 37.5 TOLERANCES: EXCEPT WHERE NOTED .38 .13 DECIMALS: .XX ± .XXX ± (.015) (.005) FRACTIONS: ±1/64 MM DIMENSIONS: (IN.) 2 WIPER 3 1 INCR. Dimensions Model f ±.010 (±.254) g ±.010 (±.254) 3681 3682 3683 3684 3685 21.08 (.830) 21.08 (.830) 21.08 (.830) 21.08 (.830) 21.08 (.830) 15.75 (.620) 25.91 (1.020) 36.07 (1.420) 46.23 (1.820) 56.39 (2.220) RECOMMENDED PANEL CUTOUT g f .76 R MAX. (.03) *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. 3680 Family - Precision Potentiometer Recommended Part Numbers Resistance (Ω) 50 100 200 500 1,000 2,000 5,000 10 K 20 K 50 K 100 K 500 K 1 Meg 3681S-1 1 Decade -500L -101L -201L -501L -102L -202L -502L -103L -104L 3682S-1 2 Decade -501L -102L -202L -502L -103L -203L -503L -104L -105L 3683S-1 3 Decade 3684S-1 4 Decade 3685S-1 5 Decade -102L -202L -502L -103L -203L -503L -104L -504L -105L -103L -203L -503L -104L -504L -105L -104L -504L -105L BOLDFACE LISTINGS ARE IN STOCK AND READILY AVAILABLE THROUGH DISTRIBUTION. FOR OTHER OPTIONS CONSULT FACTORY. ROHS IDENTIFIER: L = COMPLIANT BLANK = NON-COMPLIANT REV. 06/13 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.