WMSIC Electronic Components

FUXINSEMI SMF4L13CA

ModelSMF4L13CA
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 SMF4L13CA
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
SMF4L13CA
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
BM0265669348
Operating Temperature
55℃~+150℃
Voltage
20V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA

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

SMF4L13CA 瞬态抑制二极管(TVS)产品概述

一、产品基本信息

SMF4L13CA是FUXINSEMI(富芯森美) 推出的一款双向瞬态抑制二极管(TVS),属于单路防护器件,采用SOD-123小型贴片封装。该产品专为电子设备的过压/浪涌防护设计,兼具体积小、响应快、防护能力强等特点,适配多种场景的局部防护需求。

二、核心电气参数详解

SMF4L13CA的参数针对浪涌防护场景做了精准优化,核心参数及实际意义如下:

  1. 反向截止电压(Vrwm):13V
    正常工作状态下,器件反向可承受的最大直流电压,不产生明显导通,确保电路正常供电不受干扰(建议匹配电路工作电压≤12V使用)。
  2. 钳位电压:20V(典型)
    遭遇浪涌脉冲时,器件快速导通后两端的最大电压,直接决定对后级敏感元件的保护效果——20V的钳位电压远低于多数半导体芯片的耐压阈值(如CMOS芯片接口耐压通常≤3.3V~5V)。
  3. 峰值脉冲电流(Ipp):18.6A@10/1000μs
    采用国际标准浪涌波形(10μs上升沿+1000μs半峰值时间)时,器件可承受的最大瞬时电流,能有效应对雷击感应、电源瞬变等强浪涌冲击。
  4. 峰值脉冲功率(Ppp):400W
    浪涌脉冲期间器件消耗的最大功率,400W的容量满足多数消费电子、工业设备的防护需求。
  5. 击穿电压:15.9V(典型)
    反向电压超过此值时,器件开始导通,是浪涌防护的“触发阈值”,与Vrwm的差值保证了正常工作与防护的切换稳定性。
  6. 反向漏电流(Ir):1μA@Vrwm
    正常工作电压下的反向漏电流,极低的漏电流可避免器件自身功耗对低功耗电路的影响。

三、关键性能与防护特性

  1. 双向防护无极性
    无需区分正负极,简化电路设计与生产安装,适用于正负浪涌均可能出现的场景(如电源正负极接反、静电放电)。
  2. 纳秒级响应速度
    可在**<1ns** 内从截止态转为导通态,瞬间钳位浪涌电压,避免敏感元件被击穿(远快于压敏电阻等其他防护器件)。
  3. 宽温工作范围
    工作温度覆盖**-55℃~+150℃**,满足工业级、汽车周边(如发动机舱外)等 harsh 环境的温度要求。
  4. 符合IEC 61000-4-2标准
    满足国际电磁兼容(EMC)中静电放电(ESD)防护标准,可应对人体接触放电(HBM)、机器放电(MM)等场景。

四、典型应用场景

SMF4L13CA体积小巧(SOD-123封装尺寸约2.9×1.6×1.1mm),适合小型化设备的局部防护,典型应用包括:

  1. 消费电子接口
    手机、平板、智能手表的USB接口、耳机孔,防护静电放电与电源瞬变;
  2. 工业控制设备
    PLC输入输出端口、传感器接口、低压直流电源输入,防护现场浪涌;
  3. 通信设备
    路由器、交换机的以太网接口、光纤收发器电源端,应对雷击感应浪涌;
  4. 汽车电子周边
    车载充电器、中控屏数据接口,适配宽温环境下的浪涌防护。

五、应用注意事项

  1. 电压匹配
    确保电路正常工作电压≤Vrwm(13V),避免器件反向击穿影响电路;
  2. 安装位置
    尽量靠近后端敏感芯片(如MCU、电源管理IC),减少引线电感导致的钳位电压升高;
  3. 扩容方案
    若需更高防护电流,可采用多个SMF4L13CA并联(注意均流设计)。

该产品凭借高性价比与稳定性能,成为消费电子、工业控制等领域局部浪涌防护的常用选型之一。

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