Features ■ Snap-in or bushing mount options ■ Standard resistance values available ■ Digital dial provides excellent readability 3610 - 10-Turn Precision Knobpot® Electrical Characteristics1 Standard Resistance Range........................................................................................................................................................................ 100 to 100 K ohms Total Resistance Tolerance................................................................................................................................................................................................ ±5 % Effective Electrical Angle ................................................................................................................................................................................... 3600 ° nominal Absolute Minimum Resistance ......................................................................................................................1 ohm or 0.1 % maximum (whichever is greater) Noise ............................................................................................................................................................................................. 100 ohms ENR maximum Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Sea Level ...............................................................................................................................................................................................1,000 VAC minimum 70,000 Feet ..............................................................................................................................................................................................400 VAC minimum Power Rating (Voltage Limited By Power Dissipation or 385 VAC, Whichever is Less) +25 °C......................................................................................................................................................................................................................1.5 watts +85 °C...........................................................................................................................................................................................................................0 watt Insulation Resistance (500 VDC) ..................................................................................................................................................... 1,000 megohms minimum Resolution .............................................................................................................................................................................See recommended part numbers Accuracy (Correlation of Dial Readout to Voltage Ratio Output) ................................................................................................................±0.5 % voltage ratio Repeatability of Dial Readout .....................................................................................................................................................................±0.1 % voltage ratio Environmental Characteristics1 Operating Temperature Range ......................................................................................................................................................................... +1 °C to +85 °C Storage Temperature Range ........................................................................................................................................................................... -25 °C to +85 °C Temperature Coefficient Over Storage Temperature Range2 ........................................................................................................ ±50 ppm/°C maximum/wire Vibration .............................................................................................................................................................................................................................10 G Wiper Bounce ................................................................................................................................................................................0.1 millisecond maximum Total Resistance Shift ....................................................................................................................................................................................±2 % maximum Voltage Ratio Shift ......................................................................................................................................................................................±0.2 % maximum Shock ...............................................................................................................................................................................................................................50 G Wiper Bounce ................................................................................................................................................................................0.1 millisecond maximum Total Resistance Shift ....................................................................................................................................................................................±2 % maximum Voltage Ratio Shift ......................................................................................................................................................................................±0.2 % maximum Load Life .................................................................................................................................................................................................1,000 hours, 1.5 watts Total Resistance Shift ....................................................................................................................................................................................±2 % maximum Rotational Life (No Load) .................................................................................................................................................................... 50,000 shaft revolutions Total Resistance Shift ....................................................................................................................................................................................±2 % maximum Moisture Resistance (MIL-STD-202, Method 103, Condition B) Total Resistance Shift ....................................................................................................................................................................................±2 % maximum IP Rating ............................................................................................................................................................................................................................ IP 60 Mechanical Characteristics1 Stop Strength.............................................................................................................................................................................. 14 N-cm (20 oz.-in.) minimum Mechanical Angle ...........................................................................................................................................................................................3600 ° +20 °, -0 ° Torque (Starting) .............................................................................................................................................. 0.71 to 4.94 N-cm (1.0 to 7.0 oz.-in.) maximum Torque (Running) ................................................................................................................................................................... 4.94 N-cm (7.0 oz.-in.) maximum Variation ............................................................................................................................................................................. 0.71 N-cm (1.0 oz.-in.) maximum Backlash ............................................................................................................................................................................................................ 1.0 ° maximum Weight .....................................................................................................................................................................................................Approximately 20 gm Terminals ...................................................................................................................................................................................................Gold-plated J-Hooks 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 Markings .................................................................. Manufacturer’s name and part number, resistance value and tolerance, wiring diagram, and date code 1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. Recommended Part Numbers Part Number Resistance (Ω) Resolution (%) Part Number Resistance (Ω) Resolution (%) 3610S-1-102 3610S-1-502 3610S-1-103 1,000 5,000 10,000 .035 .027 .022 3610S-2-102 3610S-2-502 3610S-2-103 1,000 5,000 10,000 .035 .027 .022 BOLDFACE LISTINGS ARE IN STOCK AND READILY AVAILABLE THROUGH DISTRIBUTION. FOR OTHER OPTIONS AND RESISTANCE VALUES, PLEASE CONSULT THE FACTORY. “Knobpot” is a registered trademark of Bourns, Inc. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 3610 - 10-Turn Precision Knobpot® Product Dimensions 3610S-1 PANEL HOLE PATTERN 3.264 (NO. 30 DRILL) (.1285) 16.26 ± .38 (.640 ± .015) 18.80 ± .38 (.740 ± .015) 4.76 ± .79 (3/16 ± 1/32) FULL R 14.27 (.562) 12.65 REF. (.498) ANTIROTATION KEY 22.23 (7/8) DIA. 2 3610S-2 VIEW ROTATED 45 ° PANEL HOLE PATTERN 10.44 ± .07 (.411 ± .003) DIA. DIA. 1.70 ± 0.25 (.067 ± .010) 22.23 ± 0.38 (.875 ± .015) 1.98 +.08/-.03 DIA. (.078 + .003/-.001) (DRILL #5/64) 4.78 ± 0.79 (.188 ± .031) 33.48 ± 0.79 (1.318 ± .031) 17.65 ± 0.38 8.36 ± 0.38 (.695 ± .015) (.329 ± .015) DIA. 10.26 ± 0.05 (.404 ± .002) ANTI-ROTATION LUG ALIGNS WITH “0” ± 4 ° 0.38 (.015) 1.83 (.072) 6.93 ± 0.25 (.273 ± .010) 7.11 (.280) #21 AWG GOLD PLATED PIN 0.72 DIA. (.0285) LOCATED ON 1.27 RADIUS (.050) 1.52 TO 3.96 (.060 TO .156) PANEL THICKNESS 1.52 ± 0.38 (.060 ± .015) 3.18 ± 0.79 (.125 ± .031) 1.40 ± 0.38 (.055 ± .015) 3/8-32 UNEF-2A THD. TOLERANCES: EXCEPT WHERE NOTED .25 .13 DECIMALS: .XX ± .XXX ± (.010), (.005) FRACTIONS: ±1/64 MM DIMENSIONS: (IN.) 31.496 (1.240) 1 3 #21 AWG GOLD PLATED PINS .724 DIA. (.0285) LOCATED ON 1.27 RADIUS (.050) 25.40 DIA. (1.00) NOTES: 1. SNAP-IN MOUNTING CUP ACCOMMODATES PANEL THICKNESS .64 1.98 (.025) THRU (.078) (NO. 22GA 3.18 THRU NO. 14GA) AND (.125) ANTIROTATION KEY HOOK DETAIL 2 CCW WIPER 3 1 CW CLOCKWISE REV. 10/11 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.