WMSIC Electronic Components

UMW CESD5V0D5

ModelCESD5V0D5
PackageSOD-523
BrandUMW
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW CESD5V0D5
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
CESD5V0D5
Electronic Component
1
Package
SOD-523
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.027g
Electronic Component
1
Cj- Capacitor
95pF
Electronic Component
BM0265604706
Voltage
13V
Electronic Component
IEC 61000-4-2
Current(Ir)
10uA
Voltage(VBR)
7.3V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

UMW CESD5V0D5 单向ESD防护二极管产品概述

UMW(友台半导体)作为国内功率半导体与防护器件领域的专业厂商,其推出的CESD5V0D5是一款针对低电压系统定制的单向ESD(静电放电)防护二极管,凭借紧凑封装、可靠防护能力及符合国际标准的特性,成为消费电子、IoT等小型化设计场景的常用选择。

一、核心身份与基础定位

CESD5V0D5属于单向ESD防护器件,专为5V供电系统的静电防护需求打造,采用超小型SOD-523封装,可直接并联在电源或信号线路中。当静电放电事件发生时,器件快速导通并钳位过压,保护后端敏感元件(如MCU、传感器)免受损坏,同时不影响系统正常工作。

二、关键电气参数深度解析

1. 工作电压与漏电流特性

  • 反向截止电压(Vrwm):5V,即器件在正常工作状态下反向偏置时(承受5V以内电压)保持截止,无明显漏电;
  • 反向漏电流(Ir):仅10μA(典型值),低漏电流确保不会增加系统功耗,尤其适合电池供电的便携式设备;
  • 击穿电压:7.3V,当线路出现超过7.3V的过压(如ESD冲击)时,器件快速击穿导通,启动防护机制。

2. 脉冲防护能力

  • 峰值脉冲电流(Ipp):13A(@8/20μs波形),8/20μs是国际标准浪涌测试波形,13A耐受能力覆盖绝大多数日常静电冲击场景;
  • 钳位电压:13V,导通后将线路过压钳位至13V以下,远低于后端敏感元件的耐压阈值(通常MCU耐压为15V左右),有效避免元件损坏。

3. 结电容与信号兼容性

  • 结电容(Cj):95pF(典型值),适合低速信号线路(如UART、I2C)或电源线路,但需注意:GHz级高频场景(如射频前端)需选择低容型ESD器件(如1pF以下)。

三、封装与可靠性优势

1. 超小型SOD-523封装

封装尺寸约1.6mm×0.8mm×0.6mm,体积仅为传统SOT-23的1/3,可轻松集成到智能手机、智能手环等空间受限设备中,满足小型化设计需求。

2. 符合国际防护标准

通过IEC 61000-4-2静电放电测试,可抵御接触放电(8kV)与空气放电(15kV),符合消费电子、IoT领域的防护要求,可靠性有明确标准支撑。

3. 单向防护设计

单向导通特性适配单方向静电防护场景,如电源输入端口(仅需防护外部→内部静电)、单向信号线路(如USB充电端),无需额外反向防护电路,简化设计。

四、典型应用场景

CESD5V0D5广泛应用于:

  1. 低电压消费电子:智能手机、平板电脑的USB充电口、耳机接口防护;
  2. 便携式设备:智能手环、蓝牙耳机的电源与数据接口防护;
  3. IoT传感器节点:温湿度、运动传感器模块的电源线路防护;
  4. 小型电子模块:MCU模块、蓝牙模块的信号与电源防护。

五、选型与应用注意事项

  1. 电压匹配:仅适用于5V及以下系统,12V以上需选Vrwm≥12V的器件(如CESD12V0D5);
  2. 高频限制:95pF结电容不适合GHz级高频(如Wi-Fi射频),需换低容器件;
  3. 焊接工艺:SOD-523封装需注意回流焊温度≤260℃、时间≤30s,避免虚焊影响防护。

总结

UMW CESD5V0D5是一款高性价比的单向ESD防护二极管,以紧凑封装、可靠防护及低漏电流特性,完美适配5V系统的小型化设计,覆盖消费电子、IoT等主流场景,是工程师静电防护设计的实用选择。

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