WMSIC Electronic Components

BORN BSD5C151U

ModelBSD5C151U
PackageSOD-523
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 BSD5C151U
Type
BORN
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
BSD5C151U
Electronic Component
1
Package
SOD-523
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.015g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.3pF
Electronic Component
BM0258880915
Voltage
40V
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.

BSD5C151U 产品概述

一、产品简介

BSD5C151U 是伯恩半导体(BORN)推出的一款单路双向瞬态抑制二极管(TVS),采用超小型 SOD-523 封装,专为对低电压、高速信号线的浪涌与静电放电(ESD)保护设计。器件在正常工作电压下保持高阻抗状态,在发生瞬态过压时迅速导通,将能量钳位到安全电平,从而保护后端敏感电路。

二、主要参数

  • 极性:双向(Bidirectional)
  • 反向截止电压 Vrwm:15 V
  • 击穿电压(典型):17.5 V
  • 钳位电压 Vcl:40 V(在指定脉冲条件下)
  • 峰值脉冲电流 Ipp:3 A @ 8/20 µs
  • 峰值脉冲功率 Ppp:100 W @ 8/20 µs
  • 静态反向电流 Ir:500 nA(典型或最大值)
  • 结电容 Cj:0.3 pF(低电容,适合高速信号)
  • 通道数:单路
  • 防护等级/测试标准:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)测试要求
  • 封装:SOD-523(超小型表贴)

三、主要特性

  • 双向对称保护,适用于可能出现正、负极性瞬变的信号线或电源线。
  • 极低结电容(0.3 pF),对高速数据链路(如 USB、HDMI 的差分对、射频链路等)影响小,能保证信号完整性。
  • SOD-523 小封装,便于在空间受限的移动设备、可穿戴设备或消费电子产品中布局。
  • 低漏电流(500 nA)有利于低功耗系统的待机性能。
  • 在 8/20 µs 波形下可承受 3A 脉冲电流与 100W 峰值功率,适用于一般的接插件/外部接口瞬态浪涌防护。

四、典型应用场景

  • 移动终端、便携式设备的 I/O 口保护(耳机、按键、触控)。
  • 高速差分数据线路(例如 USB、HDMI、LVDS)前端ESD保护(需注意差分对的布局与匹配)。
  • 工业控制、传感器接口、通信端口的浪涌与静电防护(工作电压≤15V)。
  • 可穿戴与物联网设备对小尺寸、低电容保护器件的需求场合。

五、设计与布局建议

  • 器件应尽量靠近受保护的连接器或接口放置,输入侧到 TVS 的走线应尽量短且宽以减少感抗。
  • 为获得最佳接地回路,建议在 TVS 旁边设置多点接地或通过接地过孔(via)直连底层地平面,减小回路面积与寄生电感。
  • 注意留出适当的热阻路径,尽管 SOD-523 为微小封装,但在多次冲击或更高能量情况下热耗会积累。
  • 在差分线应用中,可在每一条信号线上各并一颗双向 TVS;若采用线对间保护方案,应验证对信号完整性的影响并进行匹配调整。
  • 遵循最大脉冲电流(Ipp)与峰值功率(Ppp)限制,必要时与串联阻抗或熔断元件配合使用以分担能量。

六、可靠性与合规

BSD5C151U 已通过 IEC 61000 系列的关键抗扰度测试(ESD、EFT、浪涌),适合需要满足电磁兼容性要求的产品设计。器件的低漏电与低电容特性也有助于长期稳定运行与系统性能保持。

七、封装与选型建议

SOD-523 超小封装适合高密度 PCB 布局,但在高能量耐受场合要注意热散与机械应力。选型时应确认系统最大工作电压不超过 Vrwm(15 V),并据外部浪涌/ESD 能量评估是否需要更高 Ipp/Ppp 规格的 TVS 或并联其他防护元件。

八、使用注意事项

  • 严禁超过最大脉冲参数连续工作;若存在持续高能量冲击,应选用更大功率器件或外加吸能元件。
  • 在焊接与回流工艺中遵循厂方推荐温度曲线,避免超温导致性能退化。
  • 在实际应用中建议进行系统级冲击测试以验证保护效果并优化布局。

如需器件Datasheet、封装尺寸图或样片建议,可联系伯恩半导体或其授权分销渠道获取详细资料与测试报告。

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