WMSIC Electronic Components

KUU PESD0402MS05

ModelPESD0402MS05
Package0402
BrandKUU
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
KUU PESD0402MS05
Type
KUU
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
PESD0402MS05
Electronic Component
1
Package
0402
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.05pF
Electronic Component
BM0264356215
Operating Temperature
55℃~+125℃
Voltage
40V
Electronic Component
IEC 61000-4-2;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.

PESD0402MS05 产品概述

一、产品简介

PESD0402MS05 是 KUU 品牌推出的一款高可靠性单通道双向静电放电(ESD)保护二极管,采用超小型 0402 封装。该器件设计用于对敏感信号线和接口进行瞬态过电压钳位与泄放,工作反向截止电压(Vrwm)为 5V,钳位电压(Vc)为 40V,反向漏电流仅 10nA,结电容极低(Cj = 0.05pF),可在 -55℃ 至 +125℃ 的宽温度范围内稳定工作,并符合 IEC 61000-4-2 静电放电防护等级要求,适配现代高速微电子系统的防护需求。

二、主要特性

  • 极性:双向,支持正、负向瞬态电压的对称钳制,适用于差分信号或无参考极性的应用场景。
  • 反向截止电压(Vrwm):5V,适配常见 3.3V/5V 系统的工作电压余量。
  • 钳位电压:40V,能有效钳制高能瞬态脉冲以保护后级电路。
  • 反向电流(Ir):10nA(在 Vrwm 下),漏电小,对低功耗或高阻抗电路影响极小。
  • 结电容(Cj):0.05pF,超低电容设计,适合高速信号线(如高频、射频或高速串行接口)对信号完整性的要求。
  • 通道数:单路,便于按线进行逐一保护。
  • 工作温度范围:-55℃ ~ +125℃,适应工业级环境。
  • 封装:0402(1.0mm × 0.5mm 级别),占板面积小,适合移动设备和空间受限板面布局。
  • 防护等级:符合 IEC 61000-4-2 静电放电标准,满足工业与消费电子常见 ESD 抗扰度要求。

三、典型应用场景

  • 智能手机、平板、可穿戴设备等移动终端的接口保护(如按键、耳机、触控接口等)。
  • USB、HDMI、LVDS、MIPI 等高速数据接口的输入/输出保护(受益于极低结电容)。
  • 工业控制、通信设备的敏感信号线、传感器接口和低电流测量电路。
  • 医疗电子、测试测量仪器等对低漏电和高可靠性有要求的应用场合。
  • PCB 边缘连接器、外部接口或信号暴露区域的局部防护元件。

四、封装与安装建议

PESD0402MS05 采用 0402 超小型封装,体积小、焊接热容量低。推荐在 PCB 上靠近受保护端口的连接处直接布置,尽量缩短从被保护节点到器件的走线长度,以减小走线感抗并提高 ESD 能量的泄放效率。推荐在焊盘处采用足够接地面积或通过多指焊盘连接到地平面,以提高散热与放电通道的可靠性。对于双向器件,两端对称布局,无需方向区分。

五、典型电路与使用建议

  • 常见接法:单通道双向器件两端分别接保护线路与地(或信号对两端直接跨接),在有公共地的系统中直接连接到地回路。
  • 串联阻抗:在某些场合可在保护器件与信号源间加入小阻值(如 10Ω~100Ω)或共模电感,以分担瞬态能量并降低器件应力。
  • 多级防护:对高能量环境建议结合低通滤波器、共模抑制器或快速熔断元件形成多级保护体系。
  • PCB 布局要点:器件与被保护引脚尽量保持成直线短距离连接,避免大面积环路;地回路要求宽而短以降低接地阻抗。

六、可靠性与环境适应

PESD0402MS05 设计符合工业级工作温度并通过常规的焊接与热循环可靠性验证。低漏电和低结电容的特性在长期工作中有利于维持信号完整性与测量精度。为保证长期可靠性,建议遵循厂商的回流焊温度曲线以及储存湿度控制(防潮措施),0402 小封装对焊接工艺敏感,需注意回流曲线与焊剂残留控制。

七、选型与订购信息

产品型号:PESD0402MS05
品牌:KUU
封装:0402(SMD)
通道数:1 通道双向 ESD 保护
应用关键点:适用于需要极低电容且工作电压不超过 5V 的高速信号线和敏感节点防护。
在选型时,请确认系统的最大工作电压、允许漏电和对信号衰减的容忍度,并结合钳位能力评估是否满足预期的 ESD 能量吸收需求。

八、使用注意事项

  • 仅作为瞬态防护器件使用,非用于连续电压钳位或大电流限流场合。
  • 在高能量冲击环境下,如需更高能量承受能力,请采用多级或并联保护方案,并做好热管理设计。
  • 0402 小封装在贴装与回流焊接过程中需注意机械应力与湿敏等级处理。
  • 如需获得详细的电气时序曲线、ESD 测试条件与包装信息,请参考厂商完整数据手册或直接咨询 KUU 技术支持。

结束语:PESD0402MS05 凭借其双向保护、超低结电容和微型封装,适合用于现代高速与空间受限的电子系统中,为敏感信号提供高效、低干扰的静电防护解决方案。

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