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PTVSUC3D5VB是芯导(Prisemi)推出的双向低电容瞬态抑制二极管(TVS),专为高速信号接口的浪涌/静电防护设计,兼顾小封装与高性能,可有效应对电子设备中常见的ESD(静电放电)、EFT(电快速瞬变脉冲群)等瞬态干扰,保护后端敏感电路。
核心优势包括:
PTVSUC3D5VB的核心参数针对高速接口防护做了优化,关键参数及实际意义如下:
参数 数值 实际意义 极性 双向 可同时防护电路中的正、负瞬态脉冲,无需额外考虑方向设计 反向截止电压(Vrwm) 5V 正常工作电压下反向不导通,漏电流极小(≤1uA),不影响电路正常运行 击穿电压(Vbr) 6V 当瞬态电压超过5V时开始导通,启动防护功能 钳位电压(Vc) 23.6V 峰值脉冲(8/20us波形)下,将电压钳位至23.6V以下,保护后端器件(如IC) 峰值脉冲功率(Ppp) 240W@8/20us 可承受的最大浪涌功率,满足消费电子常见的浪涌防护需求 结电容(Cj) 1.2pF 高速信号传输时的电容负载极小,不衰减USB 2.0/3.0、HDMI等信号的完整性 反向漏电流(Ir) ≤1uA@Vrwm 正常工作时漏电流可忽略,不额外消耗系统功耗PTVSUC3D5VB采用SOD-323表面贴装封装,尺寸仅为1.6mm×0.8mm×0.6mm(典型值),具备以下特点:
该器件通过了IEC 61000-4-2(ESD) 和 IEC 61000-4-4(EFT) 两项国际EMC标准测试,具体防护能力:
PTVSUC3D5VB的低电容、小封装特性使其适用于以下场景:
综上,PTVSUC3D5VB是一款性价比突出的高速信号防护器件,可满足多数消费电子、IoT设备的瞬态干扰防护需求。
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