WMSIC Electronic Components

UMW PESD12VS1UA

ModelPESD12VS1UA
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW PESD12VS1UA
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
PESD12VS1UA
Electronic Component
1
Package
SOD-323
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.03g
Electronic Component
1
Cj- Capacitor
160pF
Electronic Component
BM0231084824
Voltage
27V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
100nA
Voltage(VBR)
14.5V
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.

PESD12VS1UA 产品概述

一、产品简介

PESD12VS1UA 是友台半导体(UMW)推出的一款小尺寸表面贴装 ESD 静电保护器件,封装为 SOD-323。器件针对瞬态过压和静电放电事件提供快速钳位保护,适用于有限空间内对信号线或电源线的抗静电与雷击浪涌保护需求。

二、主要参数与性能

  • 钳位电压(Vc):27 V(典型)
  • 击穿电压(Vbr):14.5 V
  • 反向截止电压(Vrwm):12 V(适用于 12 V 工作电压系统)
  • 峰值脉冲功率(Ppp):600 W @ 8/20 μs(IEC 61000-4-5 浪涌规范)
  • 峰值脉冲电流(Ipp):22.5 A @ 8/20 μs
  • 反向电流(Ir):100 nA(静态低漏电)
  • 结电容(Cj):160 pF(对高速信号有影响需评估)
  • 防护等级/认证:满足 IEC 61000-4-2(ESD)和 IEC 61000-4-5(雷击/浪涌)相关测试要求

三、核心优势

  • 高脉冲吸收能力:600 W(8/20 μs)及 22.5 A 的脉冲承受能力,使其能应对典型的浪涌与雷击注入能量。
  • 低钳位电压:27 V 的低钳位可在过压事件时有效保护下游器件,降低损坏风险。
  • 低静态漏电:100 nA 的低反向电流有利于对供电和信号完整性敏感的应用。
  • 封装小巧:SOD-323 适合移动设备和空间受限的 PCB 布局,便于自动化贴装。

四、典型应用场景

  • 移动终端与便携式设备的 I/O 接口保护(如充电口、按键接口)
  • 工业与楼宇控制系统的信号线与低压电源保护(12 V 系统)
  • 通信模块、射频外围接口的一次防护(视电容影响判断是否适合高速信号)
  • 消费类电子、监控、POS 终端等易遭受静电冲击环境的设备

五、设计与布局建议

  • 器件应尽可能靠近被保护的连接器或外来信号入口处布置,缩短输入引线长度以降低感性增压。
  • 对高速差分信号(如 USB 2.0、USB 3.0、HDMI 等),需特别注意 160 pF 的结电容可能造成信号失真或带宽下降,建议评估是否采用低容型 TVS/ESD 器件或在信号路径上增加串联阻抗/隔离器件。
  • 在接地设计上采用单点接地或良好接地平面,确保浪涌电流有低阻抗回流路径,避免通过敏感电路路径回流。
  • 必要时与串联电阻、共模扼流圈或滤波网络配合使用,以提升系统整体抗扰度。

六、注意事项与选型建议

  • 本器件适合保护工作电压约 12 V 的线路;若系统工作电压或耐压要求更高,应选用相应 Vrwm 更高的型号。
  • 对于高速数据信号线,如对延时、眼图要求严格,应确认 160 pF 电容是否满足系统规格,或考虑低电容替代方案。
  • 在高能量浪涌(如直击雷)环境中,建议结合多级保护策略(外部气体放电管、浪涌抑制器等)使用,以提升可靠性与可维护性。

PESD12VS1UA 以其高能量承受力、低钳位和小型封装,适合多数 12 V 级别的防护场景。设计时结合具体信号特性与 PCB 约束进行评估,可获得可靠且成本友好的静电/浪涌防护方案。

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