WMSIC Electronic Components

UMW PESD1LIN

ModelPESD1LIN
PackageSOD-323
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 PESD1LIN
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
PESD1LIN
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.028g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
13pF
Electronic Component
BM0227625244
Electronic Component
IEC 61000-4-5
Current(Ir)
1nA
Electronic Component
Electronic Component

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

PESD1LIN 产品概述

一、产品简介

PESD1LIN 是 UMW(友台半导体)推出的表面贴装型 TVS(瞬态电压抑制)二极管,面向对浪涌和静电放电保护有较高要求的线路设计。该器件为单路、双向保护,采用 SOD-323 小封装,适合空间受限的消费电子、通信和工业设备中作为输入/输出端或电源防护件使用。

二、主要参数

  • 峰值脉冲功率 Ppp:160 W(8/20 µs)
  • 峰值脉冲电流 Ipp:3 A(8/20 µs)
  • 结电容 Cj:13 pF(典型)
  • 反向漏电流 Ir:1 nA(典型)
  • 通道数:单路
  • 极性:双向(双向钳位)
  • 钳位/参考电压:常见型号对应典型钳位 44 V、70 V(可选型号)
  • 标准/等级:符合 IEC 61000-4-5 浪涌防护要求
  • 封装:SOD-323,表面贴装型

三、性能特点

  • 高能量吸收能力:160 W(8/20 µs)峰值功率和 3 A 峰值脉冲电流,能有效吸收瞬态浪涌与雷击脉冲能量。
  • 低结电容:13 pF 的典型结电容,适合对信号完整性有要求的高速接口或敏感模拟线路。
  • 超低漏电:1 nA 反向漏电流,减小对被保护电路的静态影响,适合低功耗系统。
  • 双向保护:无需考虑极性,能在正负瞬态下提供对称钳位,方便用于交流或差分信号线路。
  • 小尺寸封装:SOD-323 便于在空间受限的 PCB 上布置,且适配常见回流焊工艺。

四、典型应用场景

  • 通信接口与数据线防护(串口、RS‑485、CAN、USB 等,对低容抗的要求视型号而定)
  • 工业控制与电源端口浪涌保护(可选 44 V/70 V 型号以匹配不同电压等级)
  • 消费类电子输入端与外部连接器防护
  • 需要双向 ESD/浪涌抑制的信号/电源线路

五、封装与安装注意

PESD1LIN 采用 SOD-323 小型封装,装配时建议将器件尽可能靠近被保护的连接器或引脚放置,减小寄生电感与回路面积。双向器件通常无极性方向限制,但请参考封装标识以保证一致性。设计时留意焊盘尺寸与与焊接热循环兼容性,遵循厂商推荐回流焊曲线以保证可靠性。

六、设计与布线建议

  • 将 TVS 器件尽量靠近受保护端口放置,走线短且粗以降低串联电感。
  • 为高能量冲击提供低阻抗回流路径,建议在器件接地端使用大面积接地平面并通过多点过孔接地。
  • 对于对信号完整性敏感的高速信号,可评估并行阻抗影响,必要时选用低电容或专用高速 TVS。
  • 当单一器件能量不足时,可与系列阻抗或更高功率级联器件配合使用以提升系统级防护能力。

七、合规与可靠性

PESD1LIN 针对 IEC 61000-4-5 浪涌测试条件设计,8/20 µs 测试脉冲下具备标称吸收能力。器件在正常工作温度与推荐焊接条件下具有良好的长期可靠性,适用于工业与消费类环境。具体环境应力与寿命评估建议结合实际应用做加速试验验证。

八、优势小结

PESD1LIN 在小封装下提供了较高的瞬态吸收能力、低结电容与超低漏电流,适合对空间、信号完整性与低功耗要求并存的保护场景。可选的钳位电压(44 V / 70 V)便于在不同工作电压等级中灵活部署,是一种通用、成本效益高的瞬态防护解决方案。

如需更详细的电气特性表、钳位电压曲线或 PCB 焊盘建议图,请告知我所需型号(44V 型或 70V 型)及应用场景,我可以提供针对性的建议与参考数据。

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