oH VE S CO AV R M AI SIO PL LA N IA BL S NT E
Features
■ ■ ■ ■
Repeatable settings Resolution to 0.001 % Digital display provides excellent readability Snap-in panel mount
*R
3680 Family - Precision Potentiometer
Electrical Characteristics1
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
Product Dimensions
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 b
d
Mechanical Characteristics
1
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
1
7.77 ± .38 (.306 ± .015) 7.87 (.31) e 20.57 (.810) 23.62 (.93)
8.38 ± .38 (.33 ± .015)
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.
PANEL .81 (.032) 3.18 MAX. (.125) MIN. 26.67 (1.050)
Product Dimensions
Model 3681 3682 3683 3684 3685 Dimensions a 16.51 (.650) 26.67 (1.05) 37.08 (1.46) 47.50 (1.87) 57.66 (2.270) b 14.99 (.590) 25.15 (.99) 35.31 (1.39) 45.47 (1.79) 55.63 (2.190) Dimensions f –.010 (–.254) 21.08 21.08 21.08 21.08 21.08 (.830) (.830) (.830) (.830) (.830) g –.010 (–.254) 15.75 (.620) 25.91 (1.020) 36.07 (1.420) 46.23 (1.820) 56.39 (2.220) RECOMMENDED PANEL CUTOUT f c — 10.67 (.42) 18.54 (.73) 30.73 (1.21) 39.12 (1.540) d 9.91 (.39) 11.94 (.47) 11.94 (.47) 11.94 (.47) 11.94 (.47) e –.381 (–.015) 4.19 8.38 4.19 8.38 4.19 (.165) (.330) (.165) (.330) (.165) Weight (Approx.) oz. .336 .576 .824 1.072 1.320 gms. 9.5 16.5 23.5 30.5 37.5
3.18 (.125)
TOLERANCES: EXCEPT WHERE NOTED .38 .13 DECIMALS: .XX ± .XXX ± (.015) (.005) FRACTIONS: ±1/64 MM DIMENSIONS: (IN.)
2 1
INCR.
WIPER
Model 3681 3682 3683 3684 3685
3
g
*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.
.76 R MAX. (.03)
3680 Family - Precision Potentiometer
Recommended Part Numbers
Resistance 3681S-1 3682S-1 3683S-1 3684S-1 3685S-1
(Ω) 50 100 200 500 1,000 2,000 5,000 10 K 20 K 50 K 100 K 500 K 1 Meg
1
Decade
2
Decade
3
Decade
4
Decade
5
Decade
-500L -101L -201L -501L -102L -202L -502L -103L
-104L
-501L -102L -202L -502L -103L -203L -503L -104L -105L
-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. 05/07 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
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