WMSIC Electronic Components

DOWO ESD5302F

ModelESD5302F
PackageSOT-23
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 ESD5302F
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
ESD5302F
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.036g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.5pF;0.3pF
Electronic Component
BM0264548663
Voltage
15V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA

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

ESD5302F 产品概述

一、产品定位与概述

ESD5302F 是 DOWO(东沃)推出的一款 SOT-23 封装、双路单向 TVS 二极管,专为便携终端和接口线路的静电与浪涌保护设计。器件符合 IEC 61000-4-2(ESD)与 IEC 61000-4-5(浪涌)防护等级,针对 5V 工作电压系统优化,兼顾低钳位与高抗脉冲能力,适用于蜂窝手机及配件、笔记本电脑和各类手持设备的高速信号线保护。

二、主要电气特性

  • 极性:单向(单向对地型保护)
  • 通道数:双路(两条独立保护线路)
  • 反向工作电压 VRWM:5V
  • 击穿电压 VBR:8.5V
  • 钳位电压(典型):15V
  • 峰值脉冲电流 Ipp:4.5A(8/20μs)
  • 峰值脉冲功率 Ppp:70W(8/20μs)
  • 反向漏电流 Ir:500nA(静态极低泄漏)
  • 结电容 Cj:典型 0.5pF;0.3pF(低电容,适合高速信号)
  • 封装:SOT-23

这些参数表明 ESD5302F 能在保持极低寄生电容的同时,承受典型通用接口的静电放电和短时浪涌而不影响信号完整性。

三、产品特性亮点

  • 超低电容(0.3–0.5pF):对高速数据线(例如 USB、SIM、I/O 信号)影响最小,保证信号速率与眼图完整性。
  • 低钳位电压(约 15V):在受击时可有效限制过压,保护后端敏感器件。
  • 较高脉冲能力(4.5A / 70W@8/20μs):满足工业级瞬态浪涌保护要求,提升系统可靠性。
  • 超低泄漏(nA 级):不增加静态功耗,适用于电池供电设备。
  • 双路单向结构:能同时保护两条独立信号线,节省 PCB 空间与成本。

四、典型应用场景

  • 手机及配件(充电口、耳机接口、数据接口)
  • 笔记本与平板的外设接口保护
  • 手持终端、移动 POS、蓝牙/Wi‑Fi 模块的信号端口保护
  • 任何 5V 工作电压且对信号完整性有较高要求的线路防护

五、布局与使用建议

  • 器件应尽量靠近外部接口或易受静电的位置放置,保护点与被保护器件之间走线应短且宽,减小串联电感。
  • 接地端采用低阻抗且连续的地平面,必要时在保护器附近增加过孔以增强接地回流能力。
  • 对于频繁受击或存在更大浪涌能量的场合,可配合熔断器、共模扼流圈或串联电阻使用以分担能量。
  • 推荐在满足热回流规范的前提下进行焊接,SOT-23 封装方便量产贴片。

六、选型要点与注意事项

  • 若系统工作电压恒为 5V,ESD5302F 的 VRWM 与 VBR 设计与该电压匹配,可避免误触发。
  • 关注钳位电压对后端器件耐压的影响,确保 15V 钳位在保护动作时不会超过被保护器件极限。
  • 在极低漏电与低电容间做平衡:若对更低电容有更高需求,应核对具体通道的典型 Cj 值。
  • 对于频繁高能级浪涌(超过 8/20μs 标准)的环境,应评估是否需要更高能耗等级的 TVS 或额外保护组件。

总结:ESD5302F 以其低电容、低漏电、较高瞬态能量吸收能力以及双路单向设计,成为 5V 移动与便携设备接口保护的理想选择,在保证信号完整性的同时提供可靠的瞬态防护。

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