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General Description
The UM5059 ESD protection diode is designed to replace multilayer varistors (MLVs) in portable
applications such as cell phones, notebook computers, and PDA’s. They feature large
cross-sectional area junctions for conducting high transient currents, offer desirable electrical
characteristics for board level protection, such as fast response time, lower operating voltage,
lower clamping voltage and no device degradation when compared to MLVs. The UM5059 ESD
protection diode protects sensitive semiconductor components from damage or upset due to
electrostatic discharge (ESD) and other voltage induced transient events. The UM5059 is
available in DFN2 1.0×0.6 (compatible with SOD923 & SOD882) package with working voltages
of 5 volt. It gives designer the flexibility to protect one unidirectional line in applications where
arrays are not practical. Additionally, it may be “sprinkled” around the board in applications
where board space is at a premium. It may be used to meet the ESD immunity requirements of
IEC 61000-4-2, ±30kV air, ±30kV contact discharge.
Applications Features
z Cell Phone Handsets and Accessories
z Personal Digital Assistants (PDA’s)
z Notebooks, Desktops and Servers
z Portable Instrumentation
z Cordless Phones
z Digital Cameras
z Peripherals
z MP3 Players
z Transient protection for data lines to
IEC 61000-4-2 (ESD) ±30kV (air), ±30kV
(contact)
z Small package for use in portable electronics
z Suitable replacement for MLV’s in ESD
protection applications
z Protect one I/O or power line
z Low clamping voltage
z Stand off voltage: 5V
z Low leakage current
z Solid-state silicon-avalanche technology
z Small Body Outline Dimensions:
1.0mm×0.6mm
通用描述
该ESD保护二极管,设计了一种um5059 to replace(MLVs)在多层varistors便携式
应用,如手机,笔记本电脑和PDA的大。他们的特征
横截面面积的高瞬态电流在导电连接,提供desirable电器
在板级保护的特性,如快速响应时间,较低的操作电压。
较低的钳位电压和设备的降解比在当MLVs。静电放电(ESD)的um5059
保护二极管保护敏感的半导体元件,由于从伤害或加厚
静电放电(ESD)和其他电压引起的瞬态事件。是的um5059
可在dfn2 1.0×0.6(兼容包sod923 & sod882)与工作电压
5伏特。它给出了一个设计的灵活性unidirectional线路保护在应用程序中使用
阵列是不实用的。它可能是”,以及如何在应用程序中使用sprinkled”板
在板的空间是一个溢价。它可以用来满足要求的ESD抗扰度
IEC 61000 - 4 - 2,±30kv±30kv接触放电空气。
应用特征
Z手机手机及配件
Z的个人数字助理(PDA)
笔记本电脑,台式机和服务器的Z。
便携式仪器的Z
Z的无绳电话
数码相机的Z
Z的外围设备
Z的MP3播放器
UM5059
SOD-923
友联
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