WMSIC Electronic Components

TECH PUBLIC SM05

ModelSM05
PackageSOT-23-3
BrandTECH PUBLIC
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
TECH PUBLIC SM05
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
SM05
Electronic Component
1
Package
SOT-23-3
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.036g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
100pF
Electronic Component
BM0230027707
Operating Temperature
55℃~+125℃
Voltage
15V
Electronic Component
IEC 61000-4-4

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

SM05 产品概述

一、主要特性

SM05 是台舟电子(TECH PUBLIC)推出的双路双向瞬态抑制器(TVS/ESD),专为静电放电(ESD)与浪涌(Surge)保护设计。器件核心特点包括:

  • 极性:双向(适用于双向信号或不接地参考的线)
  • 峰值脉冲功率:150W(8/20µs)
  • 反向截止电压 Vrwm:5V
  • 击穿电压:6V
  • 反向电流 Ir:1mA
  • 结电容 Cj:100pF(单通道)
  • 通道数:双路
  • 防护等级:符合 IEC 61000-4-4(EFT)要求
  • 封装:SOT-23-3,便于表面贴装

二、电气参数概览

该器件以 5V 工作电压点为设计基准,能够在瞬态冲击(8/20µs 波形)下承受 150W 峰值能量,适合对短时高能脉冲的吸收。反向漏电流约 1mA,在多数低功耗场合需评估是否可接受;结电容约 100pF,对高速差分信号链可能引入较大负载。

三、典型应用场景

SM05 适用于需要在有限版图内实现双路保护的场合,典型用途包括:

  • USB 2.0 / 较低速接口的信号防护(注意结电容影响)
  • 通讯接口、串行数据线保护(低到中速)
  • 工业控制端口、传感器信号线
  • 电源和小电压总线的浪涌抑制
  • 需通过 IEC 61000-4-4 抗扰度测试的设备前端

四、封装与 PCB 布局建议

SOT-23-3 小尺寸封装便于贴装并靠近被保护端口布局。建议:

  • 将器件尽量靠近受保护的连接器或器件放置,减少走线阻抗
  • 在两端信号线与地之间保持低电感连接(若为双向变种,请按数据手册引脚连接)
  • 对于高速信号,需评估 100pF 引入的带宽衰减,必要时考虑串联阻抗或采用低电容方案

五、选型与使用注意事项

  • 若用于高速差分信号(USB3.0、HDMI 等),100pF 可能过大,应优先选择低结电容 TVS。
  • 反向漏电流 1mA 在电池供电或低功耗系统中需评估其对待机功耗的影响。
  • 器件夹断电压(Vc)和动态特性未在本概述中列出,实际设计前请参照完整数据手册或样片测试以确认夹断水平和响应时间。

六、可靠性与合规性

SM05 标注能满足 IEC 61000-4-4 抗扰度要求,且在 8/20µs 浪涌条件下具有 150W 吸收能力。焊接兼容常见回流工艺,但建议遵循厂家推荐的回流曲线与储存防潮规范。

七、结论与建议

SM05 是一款面向 5V 级别信号与电源线上,提供双路双向过压/静电保护的经济型解决方案。其高能吸收能力和紧凑 SOT-23-3 封装适合工业与消费类终端的防护需求。但因结电容与漏电流特性,对高速或超低功耗应用需谨慎评估。如需最终选型,请参考台舟电子的完整数据手册并进行实测验证。

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