WIW25型玻璃釉预调电位器
WIW25Cermet Trimmer
♦电特性 Electrical Characteristics
•标称阻值范围 Range of nominal resistance:100Ω—2MΩ
•阻值允许偏差 Resistance tolerance: ±10%,±20%
•终端电阻 Terminal resistance: ≤1%R 或 10Ω
•接触电阻变化 Contact resistance variation: CRV≤5%R 或5Ω
•绝缘电阻 Insulation resistance: RI ≥ 1GΩ
•耐电压 Withstand voltage: 530Vac(峰值)
•极限动触点电流 Limit current of moving contact: 100mA
•有效电行程 Effective Electrical travel: > 总机械行程的70%
♦环境特性 Environment Characteristics
•额定功率 Rated power(250Vmax):0.5W@70℃,0W@100℃
•温度范围 Temperature range: -55℃—+125℃
•温度系数 TCR: ≤±500×10-6/℃
•温度变化 Temperature vareation: -55℃,30min,+100℃,30min 5次 ΔR≤±(5%R+0.1Ω),Δ(Uab/Uac)≤±5%
•碰撞 Collision: 390m/s2, 4000次 ΔR≤±(5%R+0.1Ω)
•振动 Vibration: (10—500)Hz,0.75mm ,6h ΔR≤±(5%R+0.1Ω),Δ(Uab/Uac)≤±7.5%
•气候顺序 Climate category:IEC68-2-2等ΔR≤±(10%R+0.5Ω) , RI ≥ 100MΩ
•70℃耐久性 Endurance at 70 ℃:0.5W,1000h ΔR≤±(10%R+0.5Ω),CRV≤5%R或5Ω
•机械耐久性 Mechanical endurance:200周 ΔR≤±(10%R+0.5Ω),CRV≤5%R或5Ω
•稳态湿热 Steady damp heat:IEC68-2-3, Ca, 96h ΔR≤±(5%R+0.1Ω) ,RI ≥ 100MΩ
♦物理特性 Physical Characteristics
•总机械行程 Total mechanical travel: 32± 2圈
•起动力矩 Starting torque:≤ 35mN.m
•标志 Mark :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,Type
•标准包装 Standard pacdage: 100只/盒 2100只/盒 100pcs/box 200pcs/box
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