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VC181238U770 PDF预览

VC181238U770

更新时间： 2024-11-05 12:03:31
品牌 Logo 应用领域
京瓷/艾维克斯 - KYOCERA AVX /
页数 文件大小 规格书
10页 418K
描述
AVX Multilayer Ceramic Transient Voltage Suppressors

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中文翻译

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VC181238U770 技术参数

生命周期：Active包装说明：,
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8533.40.40.00风险等级：5.56
电路直流最大电压：38 V电路RMS最大电压：30 V
最大能量吸收容量：4.2 JJESD-609代码：e3
安装特点：SURFACE MOUNT端子数量：2
最高工作温度：125 °C最低工作温度：-55 °C
封装形状：RECTANGULAR PACKAGE包装方法：TR, 7 INCH
电阻器类型：VARISTOR子类别：Non-linear Resistors
表面贴装：YES端子面层：TIN
端子位置：DUAL ENDED端子形状：WRAPAROUND
Base Number Matches：1

VC181238U770 数据手册

 浏览型号VC181238U770的Datasheet PDF文件第2页浏览型号VC181238U770的Datasheet PDF文件第3页浏览型号VC181238U770的Datasheet PDF文件第4页浏览型号VC181238U770的Datasheet PDF文件第5页浏览型号VC181238U770的Datasheet PDF文件第6页浏览型号VC181238U770的Datasheet PDF文件第7页 
TransGuard®  
AVX Multilayer Ceramic Transient Voltage Suppressors  
GENERAL DESCRIPTION  
®
The AVX TransGuard Transient Voltage Suppressors (TVS)  
with unique high-energy multilayer construction represents  
state-of-the-art overvoltage circuit protection. Monolithic  
multilayer construction provides protection from voltage  
transients caused by ESD, lightning, NEMP, inductive switch-  
ing, etc. True surface mount product is provided in EIA  
industry standard packages. Thru-hole components are  
supplied as conformally coated axial devices.  
TRANSGUARD® DESCRIPTION  
®
TransGuard products are zinc oxide (ZnO) based ceramic  
semiconductor devices with non-linear voltage-current charac-  
teristics (bi-directional) similar to back-to-back zener diodes.  
They have the added advantage of greater current and energy  
handling capabilities as well as EMI/RFI attenuation. Devices  
are fabricated by a ceramic sintering process that yields a  
structure of conductive ZnO grains surrounded by electrically  
insulating barriers, creating varistor-like behavior.  
The number of grain-boundary interfaces between conduct-  
ing electrodes determines “Breakdown Voltage” of the  
device. High voltage applications such as AC line protection  
require many grains between electrodes while low voltage  
requires few grains to establish the appropriate breakdown  
voltage. Single layer ceramic disc processing proved to be a  
viable production method for thick cross section devices  
with many grains, but attempts to address low voltage  
suppression needs by processing single layer ceramic disc  
formulations with huge grain sites has had limited success.  
AVX, the world leader in the manufacture of multilayer  
ceramic capacitors, now offers the low voltage transient  
protection marketplace a true multilayer, monolithic surface  
mount varistor. Technology leadership in processing  
thin dielectric materials and patented processes for  
precise ceramic grain growth have yielded superior energy  
dissipation in the smallest size. Now a varistor has voltage  
characteristics determined by design and not just cell sorting  
whatever falls out of the process.  
Multilayer ceramic varistors are manufactured by mixing  
ceramic powder in an organic binder (slurry) and casting it  
into thin layers of precision thickness. Metal electrodes are  
deposited onto the green ceramic layers which are then  
stacked to form a laminated structure. The metal electrodes  
are arranged so that their terminations alternate from one  
end of the varistor to the other. The device becomes a  
monolithic block during the sintering (firing) cycle providing  
uniform energy dissipation in a small volume.  
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