WMSIC Electronic Components

WILLSEMI SPD9103W-2/TR SPD9103W

ModelSPD9103W-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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI SPD9103W-2 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
SPD9103W-2/TR
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.028g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1pF
Electronic Component
BM0227117754
Voltage
17V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
100pA

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

SPD9103W-2/TR 产品概述

一、产品简介

SPD9103W-2/TR 是 WILLSEMI(韦尔)推出的小封装双向 TVS 静电与浪涌保护器件,封装为 SOD-323,适用于对 3.3V 电源或信号线的瞬态过压防护。器件响应快、漏电流低、结电容小,专为接口、通信和低电压数字电路的 ESD/EFT/Surge 防护设计。

二、主要参数

  • 极性:双向(Bi-directional)
  • 反向额定电压 Vrwm:3.3 V(适配 3.3V 系统)
  • 击穿电压 Vbr:4 V(典型)
  • 钳位电压 Vc:17 V(Ipp 测试条件 20 A @ 8/20 μs)
  • 峰值脉冲电流 Ipp:20 A @ 8/20 μs
  • 反向漏电流 Ir:100 pA(低泄漏)
  • 结电容 Cj:≈1 pF(对高速信号影响小)
  • 通道数:单路
  • 防护等级:符合 IEC 61000-4-2 / IEC 61000-4-4 / IEC 61000-4-5 标准

三、性能特点与优势

SPD9103W-2/TR 能在纳秒级响应瞬态脉冲,钳位性能在高能量浪涌下仍能保持有效电压限幅,保护下游器件不被超过绝对最大额定值。100 pA 的极低静态漏电结合约 1 pF 的结电容,使其在低功耗与高速信号通路(如 I2C、SPI、UART、串行接口及精密模拟输入)中表现良好。SOD-323 封装利于小面积布局和自动贴装。

四、典型应用场景

  • 3.3V 单片机与外设接口保护
  • USB/串口/串行总线接口的 ESD 与浪涌保护
  • 工业控制设备的输入/输出端口防护(符合 IEC 抗扰度要求)
  • 通信设备、传感器前端、移动设备及消费电子的保护器件

五、PCB 布局与选型建议

  • 器件应尽量靠近被保护端口或连接器布局,保护节点与 TVS 引脚之间走线尽量短且直。
  • 若为差分高速信号,注意结电容对信号完整性的影响,1 pF 的低 Cj 有利于维持信号质量。
  • 对更高能量浪涌场景,可考虑并联更高能量级 TVS 或配合熔断器/限流电阻使用。
  • 采用 SOD-323 时注意焊盘与热量管理,满足回流焊工艺要求。

SPD9103W-2/TR 以其小封装、低漏电、低电容及良好的钳位和浪涌承受能力,是 3.3V 系统和高速信号线可靠的瞬态保护选择。

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