WMSIC Electronic Components

DOWO PESD24VS1UB

ModelPESD24VS1UB
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 PESD24VS1UB
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
PESD24VS1UB
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
Channel Count
Electronic Component
Cj- Capacitor
30pF
Electronic Component
BM0230826991
Operating Temperature
55℃~+125℃
Voltage
40V
Electronic Component
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.

PESD24VS1UB 产品概述

一、产品简介

PESD24VS1UB 是一款来自 DOWO(东沃) 的双向瞬态抑制二极管(TVS),采用超小型 SOD-523 封装,专为瞬态过压与静电放电保护设计。该器件在24V 工作电压(VRWM)下,具有钳位电压 40V、峰值脉冲电流 Ipp=9A(单次脉冲)和峰值脉冲功率 Ppp=420W 的保护能力,适合对敏感电子接口提供高效、防护占位小的表面贴装保护方案。

二、主要技术参数

  • 极性:双向(Bidirectional)
  • 反向截止电压 VRWM:24V
  • 钳位电压 Vc:40V
  • 峰值脉冲电流 Ipp:9A
  • 峰值脉冲功率 Ppp:420W
  • 击穿电压(Breakdown):26V
  • 反向电流 Ir:500nA
  • 结电容 Cj:30pF
  • 通道数:单路
  • 工作温度范围:-55℃ ~ +125℃
  • 防护等级与标准:符合 IEC 61000-4-5(浪涌)和 IEC 61000-4-2(静电放电)
  • 封装:SOD-523(超小型,适用于高密度 PCB)

三、产品特性与优势

  • 体积小、占板面积低:SOD-523 封装便于在空间受限的移动设备、消费电子或工业控制接口处布置保护元件。
  • 双向保护:对正负极间的瞬态脉冲均能提供对称钳位,适用于差分线或双向信号线路。
  • 低漏电:典型反向电流仅 500nA,能保持系统的高阻耗特点,适合对静态功耗敏感的应用。
  • 低结电容(30pF):在高速信号线或数据总线上引入有限负载,降低对信号完整性的影响。
  • 宽工作温度与工业级可靠性:-55℃ 至 +125℃,满足工业环境要求。

四、典型应用场景

  • USB、HDMI、LVDS、差分数据总线、RS-485、CAN 总线等接口的浪涌与静电防护
  • 手机、平板和可穿戴设备的外部连接器保护
  • 工业控制与测量设备的信号线防护
  • 车载电子(需验证车规要求及额外认证)和消费类电子产品中的接口保护

五、使用建议与布局要点

  • 尽量靠近需要保护的外部连接器或接口放置 TVS 器件,以缩短环路长度,减小感应电压。
  • 对高速差分信号应用,评估 30pF 电容对信号带宽的影响,必要时选择更低 Cj 的方案或在 PCB 上作合适阻抗匹配。
  • 在高能量浪涌场景下,配合熔断器或串联限流元件使用,以保护 TVS 自身及下游电路免受过流损坏。
  • 对于焊接工艺,应遵循 SOD-523 封装的推荐回流温度曲线和制造商的可靠性指引,避免热冲击导致性能退化。

六、可靠性与合规

PESD24VS1UB 满足 IEC 61000-4-2(ESD)与 IEC 61000-4-5(浪涌)测试项目要求,适用于需要抗静电和抗浪涌能力的设计。器件工作温度范围和低漏电特性也使其适合长期稳定运行的场合。

总结:PESD24VS1UB 以其小尺寸、双向保护、较高的瞬态功率承受能力与低电容特性,适合在对空间敏感且需高可靠接口保护的产品中广泛应用。选型时请根据系统的最大发生浪涌能量、信号带宽需求与 PCB 布局综合评估。若需更详细的封装尺寸、曲线特性或应用注意事项,可联系 DOWO 或参阅完整数据手册。

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