WMSIC Electronic Components

UMW ESD5302F

ModelESD5302F
PackageSOT-23
BrandUMW
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW ESD5302F
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
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
0.6pF
Electronic Component
BM0264601591
Operating Temperature
40℃~+125℃
Voltage
15V
Electronic Component
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.

UMW ESD5302F 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心类型

UMW ESD5302F是一款单向双路瞬态抑制二极管(TVS),专为5V供电系统的静电放电(ESD)及瞬态过压防护设计。作为小型化防护器件,其核心定位是在紧凑空间内为两路独立信号/电源端口提供可靠的过压抑制,同时兼顾低电容对信号传输的影响,适用于消费电子、工业IoT等对体积和防护性能有双重要求的场景。

二、关键电气参数解析

ESD5302F的电气参数针对5V系统防护做了精准优化,核心参数及实际意义如下:

  1. 反向工作电压(Vrwm):5V
    器件正常工作时,反向偏置电压不超过5V时处于截止状态,无明显导通电流,不会干扰系统正常供电/信号传输。
  2. 钳位电压:15V(8/20μs脉冲下)
    遭遇瞬态过压(如ESD脉冲)时,器件快速导通并将端口电压钳位在15V以内,覆盖典型IC(过压阈值12~18V)的防护需求,避免后端芯片损坏。
  3. 峰值脉冲电流(Ipp):4A@8/20μs
    8/20μs是IEC标准浪涌波形(电流峰值4A,上升沿8μs,半峰值宽度20μs),可承受该规格的瞬态浪涌,满足一般消费电子/工业设备的防护要求。
  4. 结电容(Cj):0.6pF
    低结电容对低速信号(USB1.1、UART、I2C 100kHz)传输损耗可忽略,避免信号反射或失真。
  5. 反向漏电流(Ir):1μA
    待机功耗极低,不会增加系统电流消耗,适合电池供电的低功耗设备。

三、封装与可靠性设计

  1. SOT-23封装
    标准贴片封装,尺寸约1.6mm×1.0mm×0.8mm,体积仅为传统TO-92的1/10,可直接集成到蓝牙耳机、智能手环等小型PCB中,无需额外空间。
  2. 宽温可靠性
    工作温度-40℃+125℃,覆盖工业级(-40+85℃)及高温短期使用场景,适合户外IoT节点、车载辅助设备。
  3. ESD防护认证
    符合IEC 61000-4-2标准,可承受接触放电8kV(Level 3)、空气放电15kV(Level 3),有效降低人体/环境静电对设备的损坏概率。

四、典型应用场景

ESD5302F的双路设计和低电容特性,适配以下场景:

  1. 5V电源端口防护:无线耳机、智能手表的充电端口、5V电源输入/输出端,抑制插拔静电或电源尖峰。
  2. 低速信号接口防护:USB1.1(D+、D-两路)、UART/RS232(TX、RX两路)、GPIO/按键接口。
  3. 小型工业IoT终端:温湿度传感器、低功耗网关的信号端口,宽温适应户外温差。
  4. 消费电子配件:智能插座、蓝牙音箱、儿童智能手表的内部端口防护。

五、选型与使用注意事项

  1. 电压匹配:仅适用于5V系统,3.3V系统需换Vrwm=3.3V的型号(如ESD3302F)。
  2. 极性安装:单向TVS需正极(标记端)接防护端口,负极接地,反接会导致器件导通损坏系统。
  3. 信号速率限制:0.6pF适合100MHz以下低速信号,高速信号(USB2.0、HDMI)需选<0.1pF的TVS。
  4. 焊接要求:回流焊峰值温度245℃±5℃,时间≤30s,符合IPC-J-STD-020标准。

UMW(友台半导体)作为国内功率器件成熟厂商,ESD5302F经批量可靠性测试,性价比优于进口同类产品,是5V系统小型化防护的优选方案。

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