全新原装进口 tocos ra25y20fb103 线绕电位器 大陆代理商 ra25y20s 技术参数 electrical standard resistance range . . . . . . . . .. . . . . .. . . . . .. . . . . . . . . ... . . . . .. . . . . .. . . b = 5ω to 20kω a,c = 100ω to 5kω resistance tolerance . . . . . . . . . . . . . . . . . . .. . . . . .. . . . . .. . .. . . . . . .±10% standard (±5%,±2% or±1% special order) end resistance . . . . . . . . . . . .. . . . . .. . . . . . . . .. . . . . .. . . . . ... . . . . . . . . . . . r< 500ω =1ω max. r≥ 500ω = 0.2% max. resistance taper . . . . b = linear; a = cw audio (logarithm);c = ccw audio (logarithm); ra25ypr model is linear only. power rating . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . . . . . b = 1.2 watts; a,c = 0.6 watt, at+40°c iulation resistance . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . .100mω minimum at 500vdc dielectric strength . . . . . . .. . ... .. . .. . .. . .. . .. . .. .. . .. . .. . .. . . . . . . . . . . 500vac, 1 minute theoretical resolution resistance (ω) resolution (%) resistance (ω) resolution (%) 5 10 20 50 100 200 1.93 1.32 0.85 0.62 0.45 0.38 500 1,000 2,000 5,000 10,000 – 0.29 0.19 0.26 0.19 0.15 – mechanical mechanical travel . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 300°c±5° shaft torque single unit . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . 71.4 to 306 gf•cm (0.99 to 4.242 oz• in) tandem unit . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. 71.4 to 714 gf•cm (0.987 to 9.899 oz• in) dual unit . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .71.4 to 459 gf•cm (0.987 to 6.363 oz• in) stop strength . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . 10.2 kgf•cm (141.4 oz• in) max. mounting nut torque . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . .15 kgf•cm (207.94 oz• in) max. solderability . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . 235°c, 3 seconds marking . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . taper, resistance, resistance tolerance,terminal identification, date code environmental temperature range . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . . y=-10°c to+100°c or x = 30 c to 100 c temperature characteristics . . . . . . . . . . . . . . ... . . . . . ... . . . . . ... . . . . . ... . .+85°c, 5 hou without load &;t/r ≤±5% low temperature exposure . . . .. . . . . . .. . . . . . . . . . ... . . . . . ..-10°c (y),-30°c (x) 1 hour without load &;t/r ≤±3% load life . . . . . . . . . . . . . . . . . . ... . . . . . ... . . . . . ... . . . . . ... . . . . . ..+40°c, 1,000 hou with rated load &;t/r ≤±3% moisture and load life . . . . . . . . . . . . . . . . . ... . . . . . ...+40°c, 90-95%rh, 500 hou with 1/10 rated load &;t/r ≤±5% vibration . . . . . . . . . . . . . . . . . . .. . . . . . ... . . . . . ..10-55hz, 1.5mm amplitude, 2 directio, 2 hou each &;t/r≤±1% soldering heat resistance . . . . . . . . . . . . . . . ... . . . . . ... . . . . . ... . . . . . ... . . . . . ..350°c, 3.5 seconds; &;t/r ≤±2% rotational life . . . . . . . . . . ... . . . . . ..15,000 cycles (500 cycles for shaft lock models only) with 1/2 rated load &;t/r ≤±3% r = total resistance value; &;t/r = total resistance change