WMSIC Electronic Components

BORN BSD5A361V35

ModelBSD5A361V35
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN BSD5A361V35
Type
BORN
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
BSD5A361V35
Electronic Component
1
Package
SOD-523
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.006g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
25pF
Electronic Component
BM0264583386
Voltage
70V
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.

BSD5A361V35 产品概述

BSD5A361V35 是 BORN(伯恩半导体)推出的一款单向瞬态电压抑制二极管(TVS),采用超小型 SOD-523 封装,专为在空间受限的电子设备中对电源线和信号线提供高效的瞬态过压保护而设计。该器件在承受雷击、感应浪涌、开关瞬变及静电放电等瞬态事件时,能够快速导通并将过电压钳制到安全水平,从而保护下游电路元件免受损坏。

一、主要特性

  • 极性:单向(正向导通保护,适用于直流电源线或单向信号线)
  • 反向工作电压 Vrwm:36 V
  • 击穿电压 VBR:典型 40 V(在厂方规定测试条件下)
  • 钳位电压:70 V(在 8/20 μs 浪涌波形峰值脉冲电流条件下)
  • 峰值脉冲电流 Ipp:4 A @ 8/20 μs
  • 峰值脉冲功率 Ppp:300 W @ 8/20 μs
  • 反向漏电流 Ir:最大 500 nA(常温下)
  • 结电容 Cj:典型 25 pF
  • 通道数:单路
  • 防护标准:满足 IEC 61000-4-2(静电放电)、IEC 61000-4-4(电快速瞬变)、IEC 61000-4-5(浪涌)测试要求
  • 封装:SOD-523(超小型表贴封装)

二、电气参数要点解析

BSD5A361V35 的 Vrwm = 36 V 意味着器件在不触发保护的正常反向工作时可承受 36 V 左右的直流偏压;当瞬态幅值超过器件的击穿区间时,器件进入低阻态,将峰值电压钳制在约 70 V(8/20 μs)以内,从而保护后端器件。反向漏电流仅为数百纳安,适合对静态功耗敏感的电路。结电容约为 25 pF,在对带宽和信号完整性有一定要求的应用中需要评估对信号路径的影响。

三、封装与机械特性

SOD-523 为极小尺寸表贴封装,适合高密度 PCB 设计与便携式、移动设备。该封装热阻较大,瞬态能量吸收能力主要依赖于脉冲宽度与 PCB 散热结构,建议在高能条件下配合良好散热布线或外部限流器件一并使用,以避免热失控。

四、典型应用场景

  • 移动终端、便携式设备的电源与数据接口保护
  • 工业控制设备的外围输入/输出保护(对 IEC 61000 系列瞬态有要求的场合)
  • 储能与通信设备的辅助电源与传感器线路防护
  • USB、串口、供电总线等对单向过压保护需求的信号/电源线

五、设计与布局建议

  • 将 TVS 器件尽可能靠近受保护的输入端或连接器放置,缩短电感性走线以提高瞬态响应速度。
  • 对于较大能量的浪涌场合,建议在 TVS 前端串联熔断器或限流电阻,以分担能量并提高整体可靠性。
  • SOD-523 封装热阻较高,必要时在器件附近布局铜箔或多层过孔(thermal via)以改善热散失。
  • 对高速信号线使用时,应评估 25 pF 结电容对信号带宽与上升/下降时间的影响;对对信号完整性要求严格的高速总线,可考虑低容型 TVS 或在保护策略上采取差分/共模组合方案。
  • 接地要求严谨:单端保护时 TVS 的负极应可靠接地,且地线应低阻抗并与系统地平面良好连接,避免接地回路引入额外干扰。

六、可靠性与认证

BSD5A361V35 满足 IEC 61000-4-2/4-4/4-5 等工业级抗扰性测试,适合在具有静电放电、感应干扰和浪涌风险的工作环境中使用。常温下的低漏电与良好的一致性使其在量产中表现稳定。对于特殊环境(高温、高湿或强振动)建议根据应用场景做可靠性测试验证(如加速寿命试验、热循环等)。

七、储存与焊接注意事项

  • 建议在推荐的回流焊温度曲线内进行焊接,避免超温导致封装或材料损伤。
  • 焊接前后注意防潮处理,若封装采用托盘或卷带供料,应按标准进行干燥箱回流或烘烤。
  • 长时间储存建议保持原包装,避免强光、高温、高湿环境。

八、订购信息与替代件建议

  • 品牌:BORN(伯恩半导体)
  • 型号:BSD5A361V35,封装 SOD-523
  • 若需更低结电容或更高吸收能量可考虑同类额定更高的 TVS 器件或不同封装(如 SOD-123、SOD-523 高功率变体等);在选择替代件时请对比 Vrwm、VBR、Vclamp、Ipp、Cj 及封装散热能力,确保满足系统要求。

如需该器件的封装尺寸图、典型 I-V 曲线或在实际应用中的参考电路图,我可以提供更详细的资料与设计示例。

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