44W电位器,44WR50KLFT7,BI贴片电位器

44系列技术参数
电器特性(electrical)
标称阻值范围(standard resistance range, ohms)..............10 to 2meg
标准电阻误差(standard resistance tolerance)...................±10%(<100 ohms = ±20%)
Zui大输入电压(input voltage, maximum)...................300 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).............................0.25 at 85°c, derating to 0 at 150°c
Zui大零位阻值(end resistance, maximum)...................1% or 2 ohms, whichever is greater
表面实际电气机械行程(actual electrical travel, nominal)...........9
绝缘强度(dielectric strength).......................600vrms
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 3 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 (<100 ohms = ±250ppm/°c)
工作温度范围(operating temperature range) .................–65°c to +150°c
热冲击(thermal shock ).....................................5 cycles, –65°c to +150°c (2% δrt, 1% δvr)
抗潮性(moisture resistance) ..............................ten 24 hour cycles (2% δrt, ir 10 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 (6% δrt, 1% crv)
负荷寿命(load life at 0.25 watts) ....................1,000 hours at 85°c (2% δrt, 1% crv)
承受焊接高温(resistance to solder heat) .....................260°c for 10 sec. (1% δrt)
Zui高暴光温度 (temperature exposure, maximum)................... 215°c for 3 min. (1% δrt)
可焊性(solderability)................................... per mil-std-202, method 208

机械原理:(mechanical)
机械制动(mechanical stop)..............................clutch action, both ends
开动后Zui大扭转力（torque, starting maximum).............3 oz.-in. (0.021 n-m)
名义重量(weight, nominal) .。。。。。。。。。。。。。  .01 oz. (0.3 grams)

尺寸:4mm

本产品的加工定制是是，品牌是BI，型号是44WR50KLFT7，种类是贴片式，用途是精密，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50k，额定功率是0.25（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3（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