WMSIC Electronic Components

TECH PUBLIC SM12T1G

ModelSM12T1G
PackageSOT-23
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 SM12T1G
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
SM12T1G
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.031g
Electronic Component
1
Cj- Capacitor
100pF;40pF
Electronic Component
BM0229304929
Voltage
30V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
100nA
Voltage(VBR)
15V

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

SM12T1G 瞬态抑制二极管产品概述

一、产品简介

SM12T1G 为 TECH PUBLIC(台舟电子)推出的一款 SOT-23 封装瞬态抑制二极管,专为快速脉冲与静电放电保护设计。该器件为双向(Bi-directional)结构,适用于信号线与电源线的过压瞬态抑制,能够在瞬间吸收高能脉冲,保护下游敏感器件。

二、主要特点

  • 钳位电压(VC):30 V(典型)
  • 击穿电压(Vbr):15 V(典型)
  • 反向截止电压 Vrwm:12 V
  • 峰值脉冲功率 Ppp:450 W(8/20 μs 波形)
  • 峰值脉冲电流 Ipp:15 A(8/20 μs)
  • 反向漏电流 Ir:≤100 nA
  • 结电容 Cj:典型值 100 pF 或 40 pF(视测试条件/型号而定)
  • 极性:双向
  • 类型:ESD / Surge 抑制
  • 防护等级:满足 IEC 61000-4-2(静电放电)、IEC 61000-4-4(电快速瞬变)、IEC 61000-4-5(雷击/浪涌)规范

三、典型应用

  • USB、HDMI、LVDS、差分高速数据线的 ESD 保护
  • 手机、平板、笔记本等消费电子接口保护
  • 工业控制、通讯设备的接口与端口保护
  • 电源线反向或瞬态抑制场合(双向保护更适合交流或双向信号)

四、封装与热管理

SOT-23 小封装便于高密度 PCB 布局,适合空间受限的设计。尽管单次脉冲能量吸收较高,长时间或重复大能量冲击仍需在 PCB 设计中考虑散热路径与串联阻抗,必要时配合阻尼元件或滤波器以延长保护寿命。

五、选型与使用建议

  • 若需更低对信号影响,优先选择低结电容(40 pF)版本用于高速数据线。
  • 在靠近接口处布置器件,保持走线短且阻抗可控,以获得最好保护效果。
  • 对于电源或高能突波场合,可并联或级联更高能量的浪涌保护器件以分担能量。
  • 关注工作电压 Vrwm 与系统正常电压的匹配,保证在正常工作下不触发击穿。

SM12T1G 以其高脉冲承受能力、双向保护与小型封装,是保护敏感接口和提高系统可靠性的经济选择。若需详细电气特性曲线、典型应用原理图或可靠性数据,请参考 TECH PUBLIC 器件数据手册。

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