WMSIC Electronic Components

TECH PUBLIC ESD5Z3V3

ModelESD5Z3V3
PackageSOD-523
BrandTECH PUBLIC
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+

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Technical data

Product details

19 specifications

Core information

Product name
TECH PUBLIC ESD5Z3V3
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
ESD5Z3V3
Electronic Component
1
Package
SOD-523
Electronic Component
Electronic Component
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.025g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
110pF
Electronic Component
BM0265434519
Voltage
9V;14V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
200nA
Voltage(VBR)
5V

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

ESD5Z3V3 单向瞬态抑制二极管产品概述

一、产品定位与核心功能

ESD5Z3V3是台舟电子(TECH PUBLIC)推出的单向瞬态抑制二极管(TVS),专为敏感电子电路的静电放电(ESD) 和快速瞬变脉冲群(EFT) 防护设计。其核心作用是在电路遭受瞬间高压冲击时,快速导通并泄放浪涌电流,将后级电路的电压钳位在安全范围内,避免集成电路(IC)、传感器等核心器件被击穿损坏。该器件针对3.3V及以下低电压系统优化,适配消费电子、物联网、工业控制等领域的小型化设计需求。

二、关键参数深度解析

1. 极性与钳位保护特性

  • 极性:单向:仅对电路某一方向(如信号输入端)的浪涌进行防护,适合单端信号的静电隔离;
  • 反向截止电压(Vrwm):3.3V:正常工作时反向截止,不影响电路信号传输,适配3.3V供电的主流低功耗系统;
  • 击穿电压(Vbr):5V:当电路电压超过5V时,器件启动导通,进入防护状态;
  • 钳位电压(Vc):9V/14V:导通后将电压限制在9V(小电流下)或14V(峰值浪涌电流下),远低于敏感IC的耐压阈值(通常8V~12V),有效保护后级器件。

2. 漏电流与结电容

  • 反向漏电流(Ir):200nA:正常工作时漏电流极低,不会额外消耗系统功耗,尤其适合电池供电的物联网设备(如传感器节点),可延长电池续航;
  • 结电容(Cj):110pF:中等结电容,适配低速数字接口(UART、I2C、SPI)、音频接口(耳机孔、麦克风)、低速模拟信号的防护;若用于高速接口(USB3.0、HDMI2.0)需搭配低电容器件,但满足大部分消费电子常规接口需求。

3. 防护标准与兼容性

  • 符合IEC 61000-4-2(静电放电)和IEC 61000-4-4(快速瞬变脉冲群)国际EMC标准,覆盖消费电子、工业设备核心防护要求:
    • IEC 61000-4-2:可承受接触放电±8kV(人体接触设备端口)、空气放电±15kV(非接触式静电);
    • IEC 61000-4-4:可抑制**±4kV/5kHz**的快速瞬变脉冲(电源/信号线高频干扰)。

三、典型应用场景

ESD5Z3V3的小封装、低功耗特性,使其适配多种场景:

  1. 消费电子接口:手机、平板、笔记本的USB接口、耳机孔、充电端口静电防护;
  2. 物联网终端:智能家居传感器(温湿度、人体感应)、可穿戴设备(智能手表、蓝牙耳机)输入端口防护;
  3. 工业低电压系统:小型PLC、远程IO模块、工业传感器信号端ESD防护;
  4. 车载辅助系统:车载USB充电口、后视镜传感器静电防护(需结合12V系统验证兼容性)。

四、封装与可靠性

  • 封装:SOD-523:超小型贴片封装(尺寸约1.6mm×0.8mm×0.6mm),适配高密度PCB设计,支持自动化贴装;
  • 可靠性:符合RoHS无铅标准,可在-55℃~150℃宽温范围稳定工作,耐受85%RH湿度、振动等环境应力,长期可靠性高。

五、总结

ESD5Z3V3作为一款高性价比单向TVS器件,具备低漏电流、宽防护标准、小封装等优势,针对3.3V系统的静电与浪涌防护需求优化,是消费电子、物联网、工业控制等领域小型化设计的可靠选择。其核心价值在于以低成本实现电路ESD/EFT防护,避免敏感器件因瞬间高压损坏,提升产品电磁兼容性与使用寿命。

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