3329 型玻璃釉预调电½器技术承认书
电气特性 Electrical Characteristcs
标称阻值范围(Range of normal resistance):50
Ω—2MΩ
阻值允许偏差(Resistance tolerance)
:±10%
终端电阻(Termial resistance)
:≤5%R 或 5Ω
接触电阻变化(Contact resistance variation):CRV≤5%R 或 5Ω
耐电压(Winthstand Voltage):101.3kPa 500V,8.5kPa 315V
绝缘电阻(Insulation resistance):Ri≥1GΩ(100Vac)
有效电行程(Effective electrical travel):210°
±10
°
环境特性 Environment Characteristics
额定功率(Rated Power)(250V max):0.5W 70
℃,0W 125℃
温度范围(Temperature range):-55℃~+125℃
温度系数(TCR):±250ppm/℃
温度变化(Temperature variation):ΔR≤±3%R,Δ(Uab/Uac)≤±1%R
2
碰撞(Collision):390m/S ,4000cycles
ΔR
≤±3%R
70
℃电气耐久性(Electrical endurance at 70℃):0.5W,1000h ΔR≤
±
10%R
机械耐久性(Mechanical Endurance):100 周(100 cycles),ΔR≤±10%R
恒定湿热(Steady damp-heat):ΔR≤±3%R,R1≥100MΩ
物理特性 Physical Characteristics
总机械行程(Total Mechanical Travel):
250°±10°
起动力矩(Staring Torque):≤20mN.m
止档力矩(Clutch Torque):≥50mN.m