website: www.kingtronics.com email: info@kingtronics.com tel: (852) 8106 7033 fax: (852) 8106 7099 1 rkt-3540 wirewound element features ? at room ambient: +25 nominal and 50% relative humldity nominal, except as noted. ? consult manufacturer for complete specification details electrical characteristics rkt-3540 wirewound element standard resistance range 100 to 100k ohms total resistance tolerance 5% independent linearity 0.25% effective electrical angle 3600 10 absolute minimum resistance/ minimum voltage 1 ohm or 0.2% max (whichever is greater) noise/ output smoothness 100 ohms enr max dielectric withstanding voltage (mil-std-202, method 301) sea level 710vdc(101.3kpa) power rating (voltage limited by power dissipation or 447vac, whichever is less) +70 +125 2 watts 0 watt insulation resistance (500 vdc) 1000 meg ohms min resolution see recommended part# environmental characteristics rkt-3540 wirewound element operating temperature range +1 to +125 storage temperature range -55 to +125 temperature coefficient over storage temperature range 50ppm/ maximum/ unit vibration 15g wiper bounce 0.1 millisecond maximum shock 50g wiper bounce 0.1 millisecond maximum load life 1000 hours, 2 watts total resistance shift 2% rotational life (no load) 10,000 cycles , speed 5~10 cycles/ min starting torque 50mn.m total resistance shift 5% maximum moisture resistance (mil-std-202, method 103, condition b) total resistance shift 2% maximum ip rating ip 40 mechanical characteristics stop strength 53 n-cm (75 oz-in) minimum mechanical angle 3600 10 torque (starting & running) 0.35 n-cm (0.5 oz-in) max mounting 170-200 n-cm (15-18 1b.-im.) max backlash 1.0 maximum weight approximately 21gm soldering condition manual soldering 96.5sn/ 3.0ag/ 0.5cu solid wire or no-clean rosin cored wire; 370 (700 f) max. for 3 seconds wave soldering 96.5sn/ 3.0ag/ 0.5cu solder with no-clean flux; 260 (500 f) max. for 5 seconds wash processes not recommended marking manufacturer?s name and part number, resistance value and tolerance, linearity tolerance, wiring diagram and date code ganging (multiple section pots) 2 cups maximum hardware one lockwasher (h-37-2) and one mounting nut (h-38-2) is shipped with each potentiometer how to order rkt-3540 --- s --- 1 --- 201 --- r model style metal shaft resistance code rohs boldface listings are in stock and readily available through distribution for servo mount version and other options consult factory. for other options consult factory. rohs identifier: l = compliant blank = non-compliant common dimensions RKT-3540S-1 optional antirotation lug (-91) 1.42x0.50 on 7.4 radius. length 1.27 from mounting surface. (suggested panel hole 1.6 dia.) tolerance: except where noted 0.25 0.13 decimals: xx (0.010). xxx (0.005) fractions: 1/64 mm dimensions: (in.) resistance table RKT-3540S-1 resistance (ohms) resistance code resolution (%) 200 201 0.042 500 501 0.031 1,000 102 0.027 2,000 202 0.021 5,000 502 0.021 10,000 103 0.019 20,000 203 0.014 50,000 503 0.011 100,000 104 0.008 note: specification are subject to change without notice.
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