WMSIC Electronic Components

BORN BDFN2A051U

ModelBDFN2A051U
PackageDFN-2L
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN BDFN2A051U
Type
BORN
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
BDFN2A051U
Electronic Component
1
Package
DFN-2L
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.009g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.5pF
Electronic Component
BM0264692197
Voltage
12.5V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
6V

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

BDFN2A051U 产品概述

一、产品简介

BDFN2A051U 是 BORN(伯恩半导体)推出的一款单通道静电防护 TVS 器件,采用 DFN-2L 微小封装,专为高速信号线的瞬态浪涌和静电放电保护设计。器件在正常工作电压下电流极小、结电容极低,适合对信号完整性要求严格的接口保护应用。

二、主要电气参数

  • 反向截止电压(Vrwm):5.5V(适用于 5V 类信号线)
  • 击穿电压(VBR):典型 6V(起始导通电压)
  • 钳位电压(Vcl):12.5V(在脉冲条件下的钳位水平)
  • 峰值脉冲电流(Ipp):1A(IEC 标准脉冲能量等级,用于 ESD/EFT 抗扰度)
  • 反向漏电流(Ir):1μA(在 Vrwm 下的低漏电)
  • 结电容(Cj):0.5pF(超低寄生电容,利于高速信号传输)
  • 通道数:单路,类型:ESD
  • 符合标准:IEC 61000-4-2(静电放电)与 IEC 61000-4-4(电快速瞬变脉冲)

三、应用场景

  • USB、DDR、MIPI、HDMI、LVDS 等高速数据接口的端口防护
  • 手机、平板、笔记本及便携式设备的I/O保护
  • 工业控制与通信设备中对静电与瞬变抗扰度要求高的信号线
  • 需要小封装、高密度 PCB 布局的消费类与物联网终端

四、产品特点与优势

  • 低结电容(0.5pF):对信号链影响极小,保持高速数据传输的信号完整性。
  • 低漏电流(1μA):不影响高阻线路或节能设计。
  • 小尺寸 DFN-2L 封装:节省 PCB 空间,便于靠近输入端放置以提高保护效果。
  • 满足 IEC 61000-4-2/4-4:具备标准化的静电与瞬变抗扰能力,可靠性高。
  • 单通道设计:针对单个信号线的精简防护方案,便于系统集成。

五、使用建议与布局要点

  • 器件应尽量靠近受保护端口或连接器放置,以减小感性回路并提升吸收效率。
  • 将器件的接地端与系统地(GND)设短且低阻的回流路径,必要时在保护器附近增加地面过孔或地铜。
  • 对于更高能量事件,可在 TVS 之前串联限流电阻或与其他防护元件(如熔断器、共模电感)配合使用。
  • 避免长期施加超过 Vrwm 的电压;TVS 适用于瞬态事件保护,不作为持续电压钳位器使用。

六、封装与订购

BDFN2A051U 标配 DFN-2L 小体封装,适合自动贴装与回流焊工艺。作为 BORN 品牌的防护器件,适用于批量生产与替换升级。订购时请参考厂商提供的封装图与回流曲线,确认焊盘设计与 PCB 可制造性。

七、注意事项

  • 钳位电压 12.5V 表示在脉冲条件下的瞬态钳位水平,实际系统中需考虑器件触发与能量吸收能力。
  • 在对信号电平极为敏感或双向信号线(不定极性)场景,确认器件为单向还是双向型号以避免影响通信。
  • 如需更高脉冲能量或多通道保护,可向厂商咨询对应系列产品或并联/组合方案。

BDFN2A051U 以其低电容、小封装和符合 IEC 标准的抗扰能力,是对高速、精密信号线提供可靠瞬态防护的理想选择。

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