WMSIC Electronic Components

WILLSEMI SPD9112W-2/TR SPD9112W

ModelSPD9112W-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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI SPD9112W-2 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
SPD9112W-2/TR
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.027g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1.2pF
Electronic Component
BM0227385725
Operating Temperature
40℃~+85℃
Voltage
28V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2

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

SPD9112W-2/TR 产品概述

一、产品简介

SPD9112W-2/TR 是 WILLSEMI(韦尔)推出的一款单路双向瞬态电压抑制器(TVS),封装为 SOD-323。该器件专为对抗瞬态过电压、静电放电(ESD)、快速瞬变(EFT)和浪涌脉冲而设计,适用于空间受限且对信号完整性要求较高的接口保护场合。标称工作反向电压(Vrwm)为 12V,击穿电压约 15V,钳位电压 28V,能在 8/20µs 波形下承受 12A 峰值脉冲电流。

二、主要特性

  • 极性:双向(Bi‑directional),可保护正负极性瞬变,适合差分或双向信号线。
  • 额定反向电压 Vrwm:12V;击穿电压 Vbr:约 15V。
  • 钳位电压:28V(典型)。
  • 峰值脉冲电流 Ipp:12A @ 8/20µs;峰值脉冲功率 Ppp:300W @ 8/20µs。
  • 反向漏电流 Ir:典型 1nA(低漏电,有利于保持线路静态特性)。
  • 结电容 Cj:1.2pF(低电容,利于高速数据线、射频或精密传感信号的完整性)。
  • 单通道保护,工作温度范围 -40℃ ~ +85℃。
  • 符合 IEC 61000-4-2、IEC 61000-4-4、IEC 61000-4-5 等抗扰度标准要求。
  • 封装:SOD-323,适合表面贴装工艺,节省 PCB 面积。

三、电气参数要点与设计意义

  • 12V 的工作电压等级使其适合用于 12V 系统或低压电源线上作为突波保护器件;双向结构尤其适合差分接口或需要两极同时受保护的场合。
  • 1.2pF 的低结电容确保对高速信号(如 USB、LVDS、以太网等)引入的寄生影响最小。
  • 钳位电压 28V 与 12A 的瞬态承受能力组合,能够在常见的雷击浪涌或开关突变事件中迅速限制过压,保护后端敏感元件。
  • 极低的反向漏电流(1nA)利于低功耗与高阻输入电路的长期稳定性。

四、典型应用场景

  • 高速数据接口保护:USB、HDMI、差分信号线(如 CAN、RS‑485、LVDS)等。
  • 通讯设备与消费者电子:路由器、基站模块、机顶盒、交换机端口保护。
  • 工业与控制系统:传感器接口、测量仪表、工业总线防护。
  • 电源与信号入口:适用于通过连接器引入的 ESD、浪涌或开关干扰防护。

五、封装与布局建议

  • 封装 SOD‑323 体积小,可直接采用标准贴片回流工艺安装。建议将器件放置在靠近被保护连接器或 PCB 入口的位置,缩短导线长度以提高抑制效率。
  • 对地连接(或对线连接)走线应尽量粗短,避免长走线形成寄生电感;若保护多个相邻线,请注意共地回流路径,必要时增加足够的接地焊盘和过孔。
  • 在高能量浪涌场合,配合适当的浪涌吸收器或限流元件使用以分担能量,提高系统可靠性。
  • 贴片与回流时遵循厂商推荐的温度曲线,避免长时间高温暴露以保护器件可靠性。

六、合规与订购信息

  • 产品型号:SPD9112W-2/TR
  • 品牌:WILLSEMI(韦尔)
  • 封装:SOD‑323,单路、双向 TVS。
  • 符合 IEC 61000‑4‑2 / 4‑4 / 4‑5 抗扰度规范。
  • 在生产与装配过程中应采取常规 ESD 防护措施(佩戴防静电手环、使用接地工作台等)。如需批量采购或获取封装尺寸、回流曲线与更多电气特性曲线(IV、钳位特性、脉冲响应等),建议联系供应商索取完整数据手册与样品测试资料。

如需我根据您的具体应用(接口类型、最大允许钳位、PCB 空间或焊接工艺)推荐替代型号或给出具体布局范例,可提供更详细的设计建议。

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