WMSIC Electronic Components

UMW PESD5V0L2BT

ModelPESD5V0L2BT
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW PESD5V0L2BT
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
PESD5V0L2BT
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.034g
Electronic Component
1
Cj- Capacitor
65pF
Electronic Component
BM0227327579
Voltage
20V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
100nA
Voltage(VBR)
7.2V

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

PESD5V0L2BT 产品概述

PESD5V0L2BT 是 UMW(友台半导体)推出的一款双通道双向瞬态电压抑制(TVS/ESD)二极管,采用 SOT-23 小型封装设计,专为对敏感信号线和接口进行高可靠电磁兼容保护而优化。该器件符合 IEC 61000-4-2、IEC 61000-4-4 和 IEC 61000-4-5 等瞬态抗扰标准,适用于 USB、串行接口、差分信号线及各类低压数字/模拟接口的浪涌与静电放电防护。

一、主要规格特点

  • 钳位电压(Vc):20 V(在指定脉冲条件下测得)
  • 击穿电压(Vbr):7.2 V
  • 反向稳态电压(Vrwm):5 V(最大持续工作电压)
  • 峰值脉冲电流(Ipp):22 A @ 8/20 μs
  • 结电容(Cj):65 pF(典型值,影响高速信号完整性)
  • 反向漏电流(Ir):100 nA(在 Vrwm 条件下典型)
  • 极性:双向,支持对称正负极性瞬态抑制
  • 通道数:2 通道,独立保护两路信号
  • 封装:SOT-23,适合空间受限的便携或板上保护方案

二、典型应用场景

  • USB、HDMI、MIPI 等高速接口的端口保护
  • 工业控制总线、RS-485、CAN 等差分/半差分通信线路
  • 手机、平板、便携式设备的外部接口防护
  • 电源线与信号线的脉冲浪涌与静电放电防护

三、产品优势说明

  • 双通道集成:两个独立双向通道在单一 SOT-23 中,节省 PCB 面积并简化布局。
  • 高脉冲承受能力:22 A @ 8/20 μs 能应对典型浪涌与充电放电事件。
  • 低漏电与可控电容:100 nA 的低漏电及 65 pF 的结电容在保护与信号完整性之间取得平衡,适合多数数字接口。
  • 符合国际抗扰标准:满足 IEC 61000-4 系列测试要求,提高系统抗扰度。

四、电气特性与实际含义

  • Vrwm = 5 V:设备在不触发导通的正常工作电压上限,适合 5 V 系统使用。
  • Vbr = 7.2 V:当反向电压超过此值时开始进入雪崩导通区以吸收能量。
  • Vc = 20 V(@ Ipp):在大脉冲条件下的夹断电压,用于估算被保护器件在极端脉冲下承受的瞬间电压峰值。
  • Cj = 65 pF:对高速差分信号可能产生损耗或影响回波损耗,应在高速接口设计时评估其影响并与信号完整性要求权衡。

五、封装与 PCB 布局建议

  • 放置位置:尽量靠近外部连接器或可能的干扰源(≤1–2 mm),减少输入路径寄生电感。
  • 接地处理:为获得最佳防护效果,确保可靠、低阻抗的地回流路径;若为差分对保护,按设计连接方式摆放(参考原厂管脚定义)。
  • 布线注意:短而粗的地线、避免通过长走线将浪涌能量引入敏感电路;在高速信号上注意并行电容带来的阻抗变化。

六、使用注意事项与兼容性

  • 请参考原厂数据手册确认引脚定义、最大额定值及焊接工艺参数。
  • 双向器件适用于交替极性脉冲场景;若仅需单向保护,可选用单向 TVS。
  • 在高能量环境(例如雷击直击或更大浪涌)下,单颗器件可能不足以保证长期可靠,应考虑级联或更高能量等级的保护方案。
  • 在高频/高速应用中,建议在原型板上进行信号完整性测试,评估 65 pF 对系统的影响。

总结:PESD5V0L2BT 在紧凑封装下提供了针对 5 V 级接口的双通道双向瞬态抑制能力,兼顾了抗扰度与封装面积,是移动设备、消费电子和工业通信接口常见的实用防护元件。若需器件详细电气曲线或封装图,请参阅 UMW 官方数据手册或联系渠道获取样片评估。

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