93PR20K BI进口1.0W大功率电位器

93pr技术资料

电器特性(electrical)
标称阻值范围(standard resistance range, ohms)..................20 to 2meg
标准电阻误差(standard resistance tolerance)...................±10%(<100 ohms = ±20%)
Zui大输入电压(input voltage, maximum).........................200 vdc or rms not to exceed power rating
Zui大滑动器电流（slider current, maximum）.....................100ma or within rated power, whichever is less
额定功率(power rating, watts)..................................1.0 at 70°c, derating to 0 at 125°c
Zui大零位阻值(end resistance, maximum).............................2 ohms
表面实际电气机械行程(actual electrical travel, turns,nominal)...........270°
绝缘强度(dielectric strength).....................................900vrms
Zui小绝缘电阻(insulation resistance, minimum)...................1,000 megohms
分辨率(resolution).............................................本质上无限(essentially infinite)
Zui大接触电阻变化(contact resistance variation, maximum)..........1% or 1 ohms, whichever is greater

环境特性:(environmental)
seal ..........................................................85°c fluorinert (no leaks)
电阻温度系数(temperature coefficient, maximum) ...............±100ppm/°c
工作温度范围(operating temperature range) .................–55°c to +125°c
热冲击(thermal shock ).....................................5 cycles, –55°c to +125°c (1% δrt, 1% δvr)
抗潮性(moisture resistance) ..............................ten 24 hour cycles (1% δrt, ir 100 megohms min.)
冲击测量(shock, 6ms sawtooth) .............................100g’s (1% δrt, 1% δvr)
振动测量(vibration) ....................................20g’s, 10 to 2,000 hz (1% δrt, 1% δvr)
Zui高温度(high temperature exposure) ..................250 hours at 125°c (2% δrt, 2% δvr)
旋转寿命(rotational life) ............................200 cycles (3% δrt)
负荷寿命(load life at 0.5 watts) ....................1,000 hours at 70°c (2% δrt)
承受焊接高温(resistance to solder heat) .....................260°c for 10 sec. (1% δrt)

机械原理:(mechanical)
机械制动(mechanical stop)................................24 oz.-in.
stop strength........................................... 1.5 lb.-in. (0.169 n-m)
开动后Zui大扭转力（torque, starting maximum).............5 oz.-in. (0.035 n-m)
名义重量(weight, nominal) .。。。。。。。。。。。。。  .05 oz. (1.5 grams)

本产品的加工定制是是，品牌是BI，型号是93PR20K，种类是多圈，用途是微调，材料是玻璃釉膜，性能是微调，阻值调节方式是旋转式，阻值变化方式是X式（直线式），标称阻值是20K欧，额定功率是1（W），阻值允许偏差是±10（%），滑动噪声是5（V），分辨率是1（%），零位电阻是2（Ω），接触电阻是2（Ω），绝缘电阻是1（MΩ），符合度是0，温度系数是±100ppm/°C