WMSIC Electronic Components

BORN BSD3C051U2

ModelBSD3C051U2
PackageSOD-323
BrandBORN
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
BORN BSD3C051U2
Type
SOD-323
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
BSD3C051U2
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.028g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.7pF
Electronic Component
BM0264692212
Voltage
20V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA

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

BSD3C051U2 产品概述

一、产品简介

BSD3C051U2 是 BORN(伯恩半导体)推出的一款双向 TVS 静电保护二极管,封装为 SOD-323,专为接口与信号线的 ESD/EFT/浪涌防护设计。该器件具有低结电容(Cj≈0.7pF),适合高速数据线或敏感模拟信号的保护应用。

二、主要参数

  • 极性:双向
  • 反向截止电压 Vrwm:5V
  • 击穿电压 VBR:7.8V
  • 钳位电压(典型):20V
  • 峰值脉冲电流 Ipp:7A(8/20µs 波形)
  • 反向电流 Ir:500nA(在 Vrwm 条件下)
  • 通道数:单路
  • 防护等级:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)
  • 封装:SOD-323(微小封装)

三、关键特性与优势

  • 低结电容(0.7pF):对高速信号影响极小,适合 USB、HDMI、LVDS、差分高速数据线及敏感模拟输入。
  • 双向保护:适用于双向数据/差分信号,无极性安装限制。
  • 良好瞬态吸收能力:8/20µs 下可承受 7A 峰值脉冲,配合 20V 钳位电压有效限制瞬态电压峰值。
  • 低漏电流:Vrwm 条件下 Ir≈500nA,有助于低功耗系统保持稳定工作。

四、典型应用场景

  • 手机、平板、笔记本等移动终端的外部接口(USB、Type-C、耳机等)
  • 工业控制与传感器接口,需抗干扰的场合(I2C、SPI 等短线)
  • 高清视频与差分传输线(在允许 Vrwm 的前提下)
  • 一般电子产品板级防护、外壳与连接器附近的浪涌/静电防护

五、设计与布局建议

  • 放置位置:尽量靠近被保护的接口或信号引脚,缩短 PCB 导线长度以降低感抗。
  • 接地处理:单端保护时保证器件参考地良好,建议使用单独回流通道或靠近公共地平面。
  • 与系列元件配合:对于能量更大的浪涌,可与阻容、电感等元件配合构建多级保护。
  • 安装注意:SOD-323 微小封装,焊接时留意回流温度曲线与焊盘尺寸匹配。

六、使用限制与选型提示

  • 能量限制:Ipp=7A@8/20µs 适合短脉冲保护,但非长期高能浪涌承受器,若需更大能量吸收请选择更高功率等级器件。
  • 钳位电压与系统耐压:钳位后的剩余电压需小于被保护器件耐压,确认 20V 钳位是否满足系统要求。
  • 对高速差分线选择时,注意 Vrwm=5V 是否与信号幅值兼容。

七、封装与订购信息

  • 品牌:BORN(伯恩半导体)
  • 型号:BSD3C051U2
  • 封装:SOD-323(适用于 SMT 自动贴装)
    如需样品、更多电气曲线或封装资料,请联系供应商获取完整数据手册与测试波形。

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