WMSIC Electronic Components

DOWO PUSB3FR4Z

ModelPUSB3FR4Z
PackageDFN2510-10L
BrandDOWO
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
DOWO PUSB3FR4Z
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
PUSB3FR4Z
Electronic Component
1
Package
DFN2510-10L
Electronic Component
Electronic Component
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.035g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.5pF
Electronic Component
BM0258760034
Voltage
15V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
4V

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

PUSB3FR4Z 产品概述

一、产品简介

PUSB3FR4Z 是东沃(DOWO)推出的一款四路单向瞬态抑制二极管(TVS),专为高速接口和低电压电路提供浪涌与静电放电保护。器件采用紧凑的 DFN2510-10L 封装,集成四通道保护,适合尺寸受限的板级防护设计,特别贴合 USB3.x 等高速差分信号线的保护需求。

二、主要特性

  • 极性:单向,适用于需要极性限制的低压信号端口。
  • 低结电容:典型 Cj = 0.5 pF,能最大限度降低对高速差分信号(如 USB3.0/3.1/3.2)的带宽影响。
  • 低漏电流:反向漏电流 Ir ≈ 1 μA(常温),利于节能与待机场景。
  • 高频响应:瞬态抑制响应快速,能有效吸收 ESD、EFT 与浪涌能量。
  • 强脉冲能力:峰值脉冲电流 Ipp = 8 A @ 8/20 μs,对应峰值脉冲功率 Ppp = 120 W(8/20 μs),钳位电压 Vc ≈ 15 V(典型)。
  • 工作电压:反向截止电压 Vrwm = 3.3 V,击穿电压约 4 V,适合 3.3 V 及以下信号域保护。
  • 国际级耐受:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)与 IEC 61000-4-5(浪涌)相关要求。

三、电气参数(关键)

  • Vrwm:3.3 V
  • 击穿电压(典型):4 V
  • 钳位电压(8/20 μs):15 V
  • 峰值脉冲电流 Ipp(8/20 μs):8 A
  • 峰值脉冲功率 Ppp(8/20 μs):120 W
  • 反向电流 Ir:1 μA
  • 结电容 Cj:0.5 pF
  • 通道数:4 路
  • 封装:DFN2510-10L

四、典型应用

  • USB3.x SuperSpeed 差分对及相关控制线保护(Type‑A/Type‑C 接口防护)。
  • 高速数据接口:PCIe、HDMI、DisplayPort 等需要低电容保护的高速信号线。
  • 消费电子:笔记本、平板、智能手机扩展口与外设接口保护。
  • 网络与通信设备:路由器、交换机、基站边缘接口防护场合。
  • 工业与汽车电子(符合相应 EMC 规范场景下的端口防护)。

五、设计与使用建议

  • 布局:将 PUSB3FR4Z 尽量靠近被保护的连接器放置,信号线到器件的引线应尽可能短且对称,避免引入环路。
  • 接地:确保器件公共地端有低阻抗回流路径,良好地平面有助于能量快速分散。
  • 功能划分:四路通道可直接对应两对差分信号或为控制/电源线提供额外通道,使用前根据被保护线路电压与允许钳位电压进行评估。
  • 热管理:在高能量冲击或密集浪涌环境中,需考虑周边铜箔面积与散热条件以避免器件过热。
  • 选型注意:若需对 VBUS(例如 USB 5V)做更强保护,应评估器件钳位后对下游器件的冲击,必要时选择专用大功率 TVS 或并联方案。

PUSB3FR4Z 以其低电容、高速响应与高能量吸收能力,适合对高速差分信号线进行高可靠性的板级防护,是追求体积小、性能高的接口保护设计的理想选择。

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