WXX 线绕预调电位器

WXX Wire-Wound Trimmer Potentiometer

♦电特性  Electrical Characteristics

•标称阻值范围 Range of nominal resistance:4.7Ω—47KΩ

•阻值允许偏差 Resistance tolerance: ±5%，±10%

•终端电阻 Terminal resistance: ≤2%R 或 1Ω

•绝缘电阻 Insulation resistance: R_I ≥ 100MΩ

•耐电压 Withstand voltage: 250Vac(峰值)

•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(71Vmax):0.5W@70℃,0W@125℃

•温度范围 Temperature range: -55℃—+125℃

•温度系数 TCR: ≤±250×10^-6/℃

•温度变化 Temperature vareation: -55℃,30min,+100℃,30min 5次 ΔR≤±3%R,Δ(Uab/Uac)≤2%

•碰撞 Collision: 390m/s², 4000次   ΔR≤±2%R

•振动 Vibration: (10—500)Hz,0.75mm ,6h  ΔR≤±2%R,Δ(Uab/Uac)≤3%

•气候顺序 Climate category:IEC68-2-2 etc. ΔR≤±5%R, R_I ≥ 100MΩ

•70℃耐久性 Endurance at 70 ℃:0.5W,1000h ΔR≤±7.5%R

•机械耐久性 Mechanical endurance:100周 ΔR≤±5%R 

•稳态湿热  Steady damp heat:IEC68-2-3, Db, ΔR≤±5%R , R_I ≥ 100MΩ

♦物理特性  Physical Characteristics

•总机械行程  Total mechanical travel: 40± 5圈

•起动力矩  Starting torque:≤ 20mN.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: 50只/盒  100只/盒  200只/盒 50pcs/box  100pcs/box 200pcs/box

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