High-Energy Varistors
40Dseries
Trustworthy electronic circuit protection expert
40D Series
产品简介
Product Profile
压敏电阻的本体是由氧化锌颗粒组成的矩阵结构。颗粒之间的晶
界类似双向 PN 结的电气特性，当低电压时，这些晶界处于高阻
抗状态，当电压高时，又会处于击穿状态，是一种非线性器件。。
The body of varistor is a matrix structure composed of zinc
oxide particles. The grain boundaries between particles are
similar to the electrical characteristics of bidirectional PN
junctions. When the voltage is low, these grain boundaries are
in the high impedance state, and when the voltage is high, they
will be in the breakdown state, which is a kind of non-linear
device.
应用领域：
通讯基站电源
Application
Communication base station power supply
Railway signal power supply
Low voltage distribution equipment, control equipment, etc.
below 1000V
铁路信号电源
1000V 以下低压配电设备、控制设备等等。
楼宇配电
电焊机
Building distribution
Electric welder
产品料号代码 HOW TO ORDER
4
7
K
7
D
压敏电阻 Varistor Voltage
最后一位数是 0 的个数 The last digit is
the number of zeros.
180=18V
压敏电压允许偏差
Varistor voltage allowable
deviation
包 装 方 式 Manner of
形状类 Series
瓷片直径或边长
packing
D 圆片形 Disk Series
S 方片形 Square Series
K
L
±10％
±15％
201=200V
Element Size
T
编带包装 Braided packing
182=1800V
产品外形 Product Shape
Bulk Straight
Cutting Straight
Out Forming
Y-Forming
Cutting Bending
标准外形
切短脚
外弯脚
Y 型脚
折脚
口 K 的详解 Detailed explanation of
口中的内容
K
KJ
KH
KH+
1
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Rev:19.3
