WMSIC Electronic Components

DOWO ESD5Z3.3C

ModelESD5Z3.3C
PackageSOD-523
BrandDOWO
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
DOWO ESD5Z3.3C
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
ESD5Z3.3C
Electronic Component
1
Package
SOD-523
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.024g
Electronic Component
1
Cj- Capacitor
50pF
Electronic Component
BM0259546327
Operating Temperature
55℃~+150℃
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
18.8uA
Voltage(VBR)
7V
Electronic Component
Electronic Component

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

ESD5Z3.3C 产品概述

一、产品简介

ESD5Z3.3C 是 DOWO(东沃)推出的一款针对 3.3V 工作电压系统的瞬态抑制(ESD)器件,采用 SOD-523 超小封装,适用于空间受限的移动终端、物联网和消费类电子接口保护。器件针对瞬态干扰设计,可在工业环境下为敏感电路提供可靠的过压和静电放电保护。

二、主要电气参数

  • 反向截止电压 Vrwm:3.3V,适配 3.3V 信号线直连保护;
  • 峰值脉冲功率 Ppp:200W(8/20µs),可吸收短时高能量脉冲;
  • 击穿电压:7V(典型),在过压时导通以钳位电压;
  • 反向电流 Ir:18.8µA(在 Vrwm 条件下),低泄漏有利于微弱信号稳定;
  • 结电容 Cj:约 50pF,兼顾保护性能与信号完整性;
  • 工作温度范围:-55℃ ~ +150℃,满足宽温域工业及汽车级应用要求。

三、封装与环境适应性

器件采用 SOD-523 超小封装,体积小、焊接方便,适合表贴自动化装配及高密度 PCB 布局。工作温度范围宽且耐受高温焊接工艺,适用温度与可靠性要求较高的场合。

四、典型应用场景

  • 3.3V 数据接口与控制线(UART、I2C、SPI、GPIO 等);
  • USB/通用接口侧的旁路保护(需评估结电容对高速信号的影响);
  • 移动终端、物联卡口、传感器前端、显示驱动器等易受静电或脉冲干扰的输入端;
  • 工业控制和通信设备的接口防护,配合系统滤波使用以提升抗扰度。

五、使用与设计建议

  • 放置位置:将器件尽量靠近被保护引脚或外部接口,以缩短泄放回路,降低回路电感;
  • 接地布局:提供低阻低感的接地回路,必要时在器件附近做地铜垫并通过多颗过孔与主地平面相连;
  • 对高速信号:50pF 的结电容会引入一定负载,若用于高速差分对或超高频信号,需要做信号完整性评估或选择更低电容器件;
  • 热量与脉冲能力:200W(8/20µs)为短脉冲吸收能力,长时间或重复的大能量脉冲仍需配合限流元件或保护电路;
  • 焊接与可靠性:遵循制造商焊接温度曲线与回流工艺,避免超过器件允许的热应力。

六、可靠性与合规性

ESD5Z3.3C 对 IEC 61000-4-2(静电放电)与 IEC 61000-4-4(电快速瞬变/群脉冲)具有防护能力,适合需要满足这些电磁兼容标准的产品设计。宽温范围(-55℃ ~ +150℃)表明器件适合严苛环境和工业级应用,但在极端工况下建议做实际寿命与失效分析。

七、选型与获取资料

品牌:DOWO(东沃);封装:SOD-523;类型:ESD。购买与设计前建议索取完整规格书,确认典型钳位电压曲线、泄放能量测试条件、封装尺寸图和回流焊工艺建议,以便在系统中正确选型与优化布局。

如需我进一步整理针对此器件的 PCB 布局示意、与特定接口(例如 USB/DDR/高速串行)的兼容性评估或比较其它低电容 ESD 器件的优劣,可以提供您系统的工作电压与信号频率,我将给出更具体的建议。

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