可调电阻调音调速单联直插带开关铁壳碳膜148旋转电位器

一、旋轉式電位器系列技術規格書

rotary series potentiometers technic specifications

 1.電氣性能 (electrical characteristic)

序号

项目

特性

1.1

全阻抗值 （total resistance)

500ω~2mω

1.2

全阻抗值允许偏差（total resistance tolerance)

±10%,     ±20%

1.3

電阻隨溫度變化特性                                                  （resistance of temperature change character)

20℃-75℃:△r/r≤±5%,                 -25℃-20℃:△r/r≤±4.5%

1.4

阻值變化特性（resistance taper)

a,    b,    c

1.5

零位阻值（residual resistance)

r≥250kω 0.1%max.of total resistance                                250kω>r>10kω 20ω                  10kω≥r 10ω max.            

1.6

額定功率（rated power)

b taper 0.05w,                     other taper 0.025w

1.7

Zui高使用電壓（max.operating voltage)

b taper 50v ac,                     other taper 25v ac

1.8

動雜音（rotational noise)

less than 100mv

1.9

絕缘阻抗（insulation resistance)

100mω min.at 250v dc

1.10

耐電壓（withstand voltage)

for 1 minute at:ac250v

1.11

同步誤差（gang error)

-40db～0db≤±3db

2.機械性能（mechanical characteristics)

2.1

全回轉角度（rotation angle)

300°±10°

2.2

旋轉力矩（rotation torque)

10～200gf.cm

2.3

軸的拉、押強度（pull-push strength)

5kgf

2.4

轉動止檔強度（rotational stop-end torque)

4kgf.cm

2.5

焊錫耐熱性（resistance to soldering heat)

260±5℃and less than 3 seconds

3.耐久性能 (durabillity)

3.1

回轉壽命（rotation life)

10,000 cycles min.