WMSIC Electronic Components

WILLSEMI SPD91011W-2/TR SPD91011W

ModelSPD91011W-2/TR
PackageSOD-323
BrandWILLSEMI
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
WILLSEMI SPD91011W-2 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
SPD91011W-2/TR
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.033g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1.5pF
Electronic Component
BM0231116229
Voltage
16V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
100nA

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

SPD91011W-2/TR 产品概述

注:所给“描述”中误标为绝缘栅场效应管(MOSFET),但根据所列电气参数与功能(钳位电压、峰值脉冲功率、8/20μs 浪涌等级等),SPD91011W-2/TR 实际为双向单通道瞬态电压抑制器(TVS)。以下内容基于 TVS 器件特性给出产品概述与应用建议。

一、产品简介

SPD91011W-2/TR 是 WILLSEMI(韦尔)出品的一款双向单路 TVS,封装为 SOD-323,小型化设计便于贴片安装。器件针对脉冲浪涌与静电放电(ESD)提供快速响应保护,满足 IEC 61000-4-2(静电放电)、IEC 61000-4-4(电快速瞬变)及 IEC 61000-4-5(浪涌)等电磁兼容防护等级要求。

二、关键电气参数

  • 反向工作电压 Vrwm:3.3 V(适用于 3.3V 供电与数据线保护)
  • 击穿电压(典型):3.5 V
  • 钳位电压(IPP 条件下):16 V
  • 峰值脉冲功率 Ppp:350 W @ 8/20 μs
  • 峰值脉冲电流 Ipp:25 A @ 8/20 μs
  • 反向静态电流 Ir:100 nA(低泄漏,适合高阻抗电路)
  • 结电容 Cj:约 1.5 pF(低电容,有利于高速信号线)
  • 通道数/极性:单路 / 双向
  • 封装:SOD-323(紧凑型,适合空间受限设计)

三、主要特性与优势

  • 双向结构:可对称钳制正负脉冲,适用于差分信号线或需要双向保护的接口。
  • 低结电容(1.5 pF):对高速数据线(如 USB、LVDS、差分串行信号)影响小,信号完整性保持良好。
  • 高浪涌能量吸收能力:350 W(8/20 μs)能应对典型的浪涌与雷击脉冲,Ipp 达 25 A。
  • 低泄漏电流:100 nA 水平,适合对静态功耗敏感的系统。
  • 小封装:SOD-323 便于在密集 PCB 布局中靠近被保护器件布局。

四、典型应用场景

  • 3.3 V 电源轨保护(电源浪涌和瞬态抑制)
  • 高速数据接口保护(串行差分线、接口防护、通信模块)
  • 接口与外设(USB、HDMI、传感器信号线、摄像头接口等)
  • 工业控制与仪表(防止现场浪涌、ESD 损伤)
  • 消费电子与移动设备的 I/O 端口保护

五、使用建议与 PCB 布局注意事项

  • 放置位置:将 TVS 器件尽可能靠近受保护端口或连接器,缩短从受保护节点到 TVS 的走线,降低串联感抗与阻抗。
  • 引脚与地:若为共地保护,确保地线短且低阻抗;在需要时增加过孔引入散热层。
  • 热管理:尽管峰值脉冲能力高,但非连续散热,避免在高功率或连续冲击场景下依赖单一器件长时间吸收能量。
  • 对高速信号:鉴于 1.5 pF 的低结电容,仍需评估在极高带宽应用下的影响,必要时做仿真或示波器测量验证信号完整性。
  • 焊接与封装:SOD-323 为常见小型封装,符合常规回流焊工艺;建议按制造商的回流曲线进行焊接工艺设定。

六、选型与替代比较

在选择 SPD91011W-2/TR 时,优先考虑是否需要双向保护、3.3 V 工作电压兼容性、以及低电容特性。若需更高工作电压或更大脉冲能力,可在 WILLSEMI 或其他厂商产品线中查找相应 Vrwm/Ppp 规格的型号;若对单向保护或更低钳位电压有需求,也可考虑单向 TVS 型号。

总结:SPD91011W-2/TR 以小封装、低电容、350 W 浪涌吸收能力及对 3.3 V 线路的兼容性,适合用于需要紧凑布局且对信号完整性有要求的接口保护场景。若需要更详细的电气特性曲线、封装尺寸与回流焊工艺参数,可参考厂方规格书或联系 WILLSEMI 获取完整技术资料。

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