WMSIC Electronic Components

FUXINSEMI SMF12CA

ModelSMF12CA
PackageSOD-123
BrandFUXINSEMI
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
FUXINSEMI SMF12CA
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
SMF12CA
Electronic Component
1
Package
SOD-123
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.041g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0265156908
Operating Temperature
55℃~+150℃
Voltage
19.9V
Electronic Component
IEC 61000-4-2
Current(Ir)
5uA

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

SMF12CA 瞬态抑制二极管(TVS)产品概述

SMF12CA是FUXINSEMI(富芯森美)推出的一款双向瞬态抑制二极管(TVS),专为电子电路的静电放电(ESD)、电快速瞬变脉冲群(EFT)及开关浪涌等瞬态过压防护设计,兼具小型化封装、宽温可靠性与高效防护能力,适配消费电子、工业控制、通信设备等多领域应用需求。

一、产品核心定位

SMF12CA属于单路双向TVS器件,聚焦“小型化+高效防护”的平衡设计:一方面通过SOD-123紧凑封装节省PCB空间,另一方面以低钳位电压、宽温范围满足不同场景的瞬态防护要求,尤其适合对尺寸敏感且需高可靠性的电子设备。

二、关键电气参数详解

SMF12CA的电气参数经过优化,精准匹配低压电路的防护需求,核心参数及意义如下:

  • 反向截止电压(Vrwm):13.3V
    常态下可长期承受的最大反向电压,确保在13.3V以内的电路电压波动中,器件保持截止状态,不影响电路正常运行。
  • 击穿电压(Vbr):14.7V
    器件发生雪崩击穿的起始电压,比Vrwm略高,避免常态电压波动误触发防护,同时保证过压时快速导通。
  • 钳位电压(Vc):19.9V
    峰值脉冲电流(10.1A)作用下的最大端电压,直接决定对后级敏感电路的保护效果——该值远低于MCU、传感器等器件的损坏阈值(通常≥20V),可有效抑制过压冲击。
  • 峰值脉冲电流(Ipp):10.1A(8/20μs波形)
    对应200W峰值脉冲功率(Ppp=Vc×Ipp≈200W),可吸收强瞬态能量(如雷击浪涌、ESD脉冲),避免后级电路损坏。
  • 反向漏电流(Ir):5μA(@Vrwm)
    常态下漏电流极小,不增加电路功耗,也不会干扰敏感模拟信号或数字信号。
  • 工作温度范围:-55℃~+150℃
    覆盖工业级、部分汽车级温度要求,可在极端环境(如户外高温、低温存储)下稳定工作。
  • 防护等级:IEC 61000-4-2
    符合静电放电防护标准,能承受接触放电8kV、空气放电15kV的典型测试,满足电磁兼容(EMC)要求。

三、核心特性与优势

SMF12CA的设计针对多场景需求优化,具备以下核心优势:

  1. 双向防护简化设计
    无需区分正负极,适配接口电路、电源端口等无明确极性的场景,降低PCB布局复杂度。
  2. 低钳位电压高效防护
    19.9V钳位电压比同类产品更优,可直接保护核心敏感器件(如MCU、FPGA),减少额外防护层级。
  3. 宽温可靠性
    -55℃+150℃的工作范围,通过高温存储(150℃/1000h)、温度循环(-55℃+150℃/1000次)等可靠性测试,确保长期稳定。
  4. 小型化封装适配高密度设计
    SOD-123封装尺寸仅2.4mm×1.6mm×1.0mm,适合智能手机、智能穿戴、小型工业模块等对尺寸敏感的设备。
  5. 低功耗常态运行
    5μA漏电流几乎不消耗额外功率,适配电池供电设备(如蓝牙耳机、智能手环),不影响续航。

四、典型应用场景

SMF12CA因尺寸小、防护强,广泛应用于以下场景:

  • 消费电子:智能手机/平板的USB Type-C、HDMI、音频接口ESD防护;智能手表、蓝牙耳机的充电接口及信号端口防护。
  • 工业控制:PLC数字I/O端口、传感器(温度/压力)信号端防护;工业机器人控制接口、变频器输入输出防护。
  • 通信设备:路由器/交换机以太网端口、光纤收发器信号端防护;基站射频接口、光模块瞬态过压防护。
  • 低压电源:5V/12V直流电源输出端防护,防止开关浪涌、雷击对电源模块及负载的损坏。

五、品牌与合规性

SMF12CA由FUXINSEMI(富芯森美)研发制造,该品牌专注于过压保护器件领域,产品通过RoHS 6.0、REACH等环保认证,符合国内外电子设备的合规要求;同时器件经过严格的可靠性测试,可满足工业级、消费级设备的量产需求。

综上,SMF12CA以“小型化、高效防护、宽温可靠”为核心优势,是低压电子电路瞬态过压防护的理想选择,适配多领域的差异化设计需求。

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