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: R_I ≥ 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) , R_I ≥ 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) ,R_I ≥ 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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