WMSIC Electronic Components

KUU KPESD5V0S1UA

ModelKPESD5V0S1UA
PackageSOD-323
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 KPESD5V0S1UA
Type
KUU
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
KPESD5V0S1UA
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.027g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
10pF
Electronic Component
BM0263548354
Voltage
18V
Electronic Component
IEC 61000-4-2;IEC 61000-4-4
Current(Ir)
10uA

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

KPESD5V0S1UA 静电防护二极管产品概述

一、产品定位与核心用途

KPESD5V0S1UA是KUU品牌针对低压敏感电子电路推出的单向ESD防护二极管,核心作用是在电路遭遇静电放电(ESD)或电快速瞬变脉冲群(EFT)干扰时,快速钳位电压至安全范围,避免后级MCU、传感器、通信模块等敏感元器件损坏。该器件适配3.3V、5V等常见低压系统,以小型化封装、低漏电流为核心优势,广泛覆盖消费电子、通信、工业控制等领域的接口防护需求。

二、关键电气参数解析

该器件的电气参数经过优化,兼顾防护性能与电路兼容性,核心参数及意义如下:

  1. 极性与截止电压:单向防护设计,反向截止电压(Vrwm)为5V——即正常工作时,反向施加电压不得超过5V,适配主流低压电路(3.3V、5V系统无需额外降额);击穿电压(6V)为反向导通起始电压,确保ESD脉冲到来时快速响应。
  2. 防护核心参数:峰值脉冲功率(Ppp)350W,可承受常见ESD脉冲(如人体模型HBM±8kV、机器模型MM±1kV);钳位电压18V,能将过压限制在敏感元器件耐受范围内(通常后级器件耐压≥15V即可匹配)。
  3. 电路兼容性:反向电流(Ir)仅10uA(Vrwm下),低漏电流特性不影响模拟信号精度或数字电路功耗;结电容(Cj)10pF,对低速信号(UART、I2C、音频)无明显衰减,适合非高速场景。

三、封装与物理特性

采用SOD-323小型表面贴装封装,尺寸约1.6mm×0.8mm×0.6mm,厚度仅0.6mm,具备以下优势:

  • 高密度适配:适合智能手机、智能手表等便携设备的高密度PCB设计,可并行布局多个防护点;
  • 工艺兼容性:兼容回流焊、波峰焊等主流表面贴装工艺,无铅环保设计符合RoHS指令,满足出口产品要求;
  • 可靠性:封装抗机械应力能力强,适应振动、冲击环境(如汽车电子非车载级场景)。

四、防护性能与标准合规

该器件严格遵循国际电磁兼容(EMC)标准,防护能力覆盖:

  • IEC 61000-4-2(ESD抗扰度):可应对接触放电±8kV、空气放电±15kV(符合Class 4等级),满足工业与消费电子的日常静电防护需求;
  • IEC 61000-4-4(EFT抗扰度):能抑制工业环境中常见的快速脉冲干扰(如电机启停、开关切换产生的脉冲),为电路提供多维度电磁防护。

五、典型应用场景

  1. 消费电子:智能手机/平板的USB接口、音频接口、充电端口防护;智能音箱的WiFi/蓝牙模块信号端防护;
  2. 通信设备:路由器、交换机的以太网端口、光猫的光纤接口防护;
  3. 工业控制:PLC的数字I/O接口、温度/压力传感器的信号端防护;
  4. 小型医疗仪器:便携式血糖仪、血压计的信号端口防护(低漏电流不影响医疗信号精度);
  5. 智能家居:智能门锁、智能窗帘的通信接口防护。

六、选型与应用注意事项

  1. 极性匹配:单向防护需反向并联于信号端与地之间,极性接反则无法防护;
  2. 电压适配:仅适用于工作电压≤5V的电路,12V/24V系统需选择Vrwm更高的器件;
  3. 信号速率匹配:10pF结电容不适合GHz级射频信号或USB 3.0以上高速差分信号,需选Cj<1pF的专用器件;
  4. 焊接工艺:回流焊峰值温度≤260℃,时间≤10秒,避免热应力损坏;
  5. 并联安装:必须并联在信号端与地之间,串联会阻断信号传输。

KPESD5V0S1UA以“低成本+高可靠性”的平衡设计,成为低压电路ESD防护的实用选择,尤其适合对体积、功耗敏感的便携与工业应用场景。

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