WMSIC Electronic Components

KUU KRCLAMP0521P-N

ModelKRCLAMP0521P-N
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 KRCLAMP0521P-N
Type
KUU
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
KRCLAMP0521P-N
Electronic Component
1
Package
0402
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.5pF
Electronic Component
BM0257646977
Operating Temperature
55℃~+125℃
Voltage
25V
Electronic Component
IEC 61000-4-2;IEC 61000-4-4
Current(Ir)
100nA

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

KRCLAMP0521P-N 产品概述

一、主要性能特点

KRCLAMP0521P-N 是 KUU 品牌的一款 0402 封装单路 TVS 静电保护管,针对 5V 系统的过压与瞬态脉冲干扰保护优化设计。主要参数包括:反向截止电压 Vrwm = 5V,击穿电压 Vbr ≈ 6V,钳位电压 Vclamp = 25V,峰值脉冲电流 Ipp = 4A,峰值脉冲功率 Ppp = 100W(在厂商标准脉冲测试条件下),反向漏电流 Ir = 100nA,结电容 Cj = 0.5pF。工作温度范围 -55℃ 至 +125℃,并可用于满足 IEC 61000-4-2(ESD)与 IEC 61000-4-4(EFT)抗扰度要求的防护场合。

二、产品优势要点

  • 极小封装(0402),适用于空间受限的移动设备、可穿戴与小型传感器模块;
  • 低结电容(0.5pF),对高速信号(如 USB2.0、I/O 线)影响极小,保证信号完整性;
  • 低漏电流(100nA),适合低功耗与待机敏感应用;
  • 较高的瞬态能量吸收能力(Ppp=100W),能在短时脉冲条件下有效钳位,保护后端电路。

三、关键电气参数说明

  • Vrwm = 5V:适配典型 5V 电源或信号线路的日常反向耐压;
  • Vbr ≈ 6V:当电压超过此值时进入击穿导通,开始吸收和耗散能量;
  • Vclamp = 25V:在规定脉冲下的钳位值,表明被保护节点在冲击时的最大电压上限;
  • Ipp = 4A 与 Ppp = 100W:指示器件在瞬态冲击时的峰值承受能力,须结合冲击波形与频次评估功耗热耗分布。

四、典型应用场景

  • USB、UART、I2C 等 5V 或接口侧的静电/脉冲防护;
  • 传感器与微控制器接口保护,尤其是户外或多人接触端口;
  • 工业控制、消费电子与物联网终端的输入/输出端防护;
  • 尺寸受限电子设备的局部防护方案。

五、PCB 布局与安装建议

  • 将 TVS 器件尽量靠近受保护的连接器或端口放置,走线短且宽,减小串联电感与寄生电阻;
  • 对地端采用单点或低阻抗回流路径,配合地平面可以提高吸收效率与散热;
  • 在高速信号线上注意匹配阻抗,0402 的低 Cj 有利于减少信号畸变;
  • 贴片回流焊兼容常规无铅工艺,但在波峰/回流温度曲线中避免过久高温以保证可靠性。

六、可靠性与合规性

KRCLAMP0521P-N 的工作温度范围宽(-55℃~+125℃),适应多种环境。其设计可满足常见 IEC 61000-4-2 与 IEC 61000-4-4 的抗扰度测试要求,具体通过级别依赖于系统整体设计与测试条件。建议在最终产品中进行系统级 EMC/ESD 验证。

七、选型与系统集成建议

  • 若目标为保护 5V 数字接口且对信号完整性要求高,KRCLAMP0521P-N 是合适选择;若系统需承受更大能量的脉冲(如雷击或更高能量浪涌),建议并联或采用更高功率等级的 TVS 或结合限流器件;
  • 注意评估实际浪涌波形(幅度、持续时间、重复频率)与热散能力,必要时在 PCB 上提供热散路径或采用多个保护器件分担能量;
  • 在量产前进行板级 ESD 与 EFT 测试,确认钳位电压、残压与系统性能满足设计目标。

结论:KRCLAMP0521P-N 凭借 0402 极小封装、低电容与较高瞬态承受能力,适合用于对空间与信号完整性敏感的 5V 接口静电保护场景,是移动终端、传感器与工业控制等领域的有效防护元件选择。

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