电气特性(electrical characteristics)
标称阻值范围
(standard resistance range)………50ω~2mω
阻值允许偏差
(resistance tolerance) …………………±10%
终端电阻
(absolute minimum resistance)…≤1%r或10ω
接触电阻变化
(contact resistance variation)
………………………………………crv≤3%或5ω
绝缘电阻
(insulation resistance)…r1≥1gω(500vac)
耐电压
(withstand voltage)……………………707vac
有效行程
(effective travel)………………………250℃
环境特性(environmental characteristics)
额定功率
(power rating)(315 volts max)
………………………………0.25w@70℃,0w@100℃
温度范围
(temperature range)……………-55℃~100℃
温度系数
(temperature coefficient)……±250ppm/℃
温度变化
(temperature variation)
………………………………-55℃,30min,+100℃
……………………………30min循环5次5cyccles
………………………△r≤5%r,△(uab/uac)≤5%
振动
(vibration)……………10~500hz,0.75mm,6h,
…………………△r≤5%r, △(uab/uac)≤7.5%r
碰撞
(collision)
…………………390m/s2,4000cycles,△r≤5%r
70℃耐久性
(electrical endurance at 70℃)
……………………………………… 0.25w@70℃
………………100h, △r≤10%r,crv≤3% or 5ω
机械寿命
(rotational life)………200周(200cycles)
………………………△r≤10%r,crv≤3% or 5ω
物理特性(physical characteristics)
起动力矩
(starting torque)…………………≤30mn·m
标志
(marking)………阻值允许偏差(±10%不标注)
……………阻值代码、产品型号resistance tolerance
…(when no identification, it is of±10%)
…………………………resistance code、model
标准包装
(standard packaging)
………………………50只/管(50pcs,per tube)

