WMSIC Electronic Components

WILLSEMI ESD5471Z-2/TR ESD5471Z

ModelESD5471Z-2/TR
PackageDFN0603-2L
BrandWILLSEMI
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI ESD5471Z-2 / TR
Type
WILLSEMI
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
ESD5471Z-2/TR
Electronic Component
1
Package
DFN0603-2L
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.008g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
9pF
Electronic Component
BM0227686764
Operating Temperature
40℃~+85℃
Voltage
12V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2

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

ESD5471Z-2/TR 产品概述

一、概述

ESD5471Z-2/TR(WILLSEMI)为单路双向瞬态电压抑制器(TVS),专为静电放电(ESD)和浪涌保护设计。器件采用微型 DFN0603-2L 封装,工作温度范围 -40℃ 至 +85℃,适用于空间受限的接口保护场景。

二、主要电气参数

  • 极性:双向
  • 反向截止电压(Vrwm):5 V
  • 击穿电压:5.1 V
  • 钳位电压:12 V(典型)
  • 峰值脉冲电流 Ipp:9 A @ 8/20 μs
  • 峰值脉冲功率 Ppp:70 W @ 8/20 μs
  • 反向电流 Ir:1 μA(常态)
  • 结电容 Cj:9 pF

三、主要特点

  • 小尺寸封装(DFN0603-2L),便于高密度布板与自动化贴装
  • 低电容(9 pF),对高速数据信号影响小,适合保护高速接口
  • 双向结构,可在双极性信号或差分线上工作
  • 低漏电流,适用于对待机功耗敏感的系统
  • 满足 IEC 61000-4-2/4-4/4-5 等电磁兼容与抗扰度测试要求

四、典型应用

适用于 USB、HDMI、音频接口、串行通讯(如 UART、I2C、SDA/SCL 较低电压场合)、消费电子设备接口、工业控制终端及其他需对 5V 级别线路进行 ESD/浪涌保护的场景。

五、封装与布局建议

  • 封装:DFN0603-2L,适合自动贴装;请参考厂方封装坐标完成 PCB 设计。
  • 布局:将器件放置于被保护器件与外部连接器之间,靠近连接器端点,尽量缩短到端口的走线并采用大地平面以降低环路电感。对双向器件无需外接极性约束。

六、选型与使用注意

  • 若保护高速接口,优先考虑结电容对信号完整性的影响(9 pF 在多数 USB/TTL 信号可接受)。
  • 检查系统允许的最大钳位电压(12 V)是否对下游器件安全;对于更苛刻的钳位要求,需选用更低钳位的器件或级联保护。
  • 峰值规范(Ipp、Ppp)用于评价单次浪涌承受能力,若系统可能遭受更大能量冲击,应评估级联或更高功率器件。

七、可靠性与认证

该器件满足 IEC 61000-4-2、IEC 61000-4-4 和 IEC 61000-4-5 等抗扰度测试规范,能在常见静电和浪涌事件中提供有效保护。建议在实际应用中结合系统级防护策略(滤波、熔断、分流等)以提高整机可靠性。

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