WMSIC Electronic Components

FUXINSEMI SMBJ26CA

ModelSMBJ26CA
PackageSMB(DO-214AA)
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 SMBJ26CA
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
SMBJ26CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.21g
Electronic Component
1
Electronic Component
BM0265669356
Operating Temperature
55℃~+150℃
Voltage
42.1V
Current(Ir)
5uA
Voltage(VBR)
28.9V
Electronic Component
Electronic Component

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

SMBJ26CA 瞬态抑制二极管(TVS)产品概述

SMBJ26CA是富芯森美(FUXINSEMI)推出的一款双向瞬态抑制二极管(TVS),采用SMB(DO-214AA)表面贴装封装,专为电路瞬态过压防护设计,具备宽温工作、低漏电流、高脉冲功率耐受等核心优势,广泛应用于消费电子、工业控制、汽车电子等领域。

一、产品基本定位与核心功能

SMBJ26CA属于小型化电路保护器件,核心作用是吸收电路中的瞬态过压冲击,将电压钳位在安全范围内,保护后级敏感元器件(如MCU、传感器、IC)免受静电放电(ESD)、雷击浪涌、开关瞬态等干扰损坏。其双向设计无需区分正负极,可直接并联在被保护电路两端,简化电路布局与生产工艺,是各类电子设备防护方案中的基础核心器件。

二、核心电气参数深度解析

该型号的电气参数经过严格测试标定,关键参数直接决定防护性能:

1. 电压类参数

  • 反向截止电压(Vrwm):26V
    器件正常工作时(无瞬态过压)的最大直流工作电压,此时器件处于截止状态,漏电流极小,不影响电路正常运行。
  • 击穿电压(Vbr):28.9V(典型值)
    当电路电压超过Vrwm并达到Vbr时,器件开始导通,进入防护状态,逐步吸收瞬态能量。
  • 钳位电压(Vc):42.1V(10/1000us波形下)
    瞬态过压冲击时器件两端的最大电压,确保后级电路电压不超过其耐受极限(如常见IC最大工作电压多低于50V)。

2. 电流与功率参数

  • 峰值脉冲电流(Ipp):14.3A
    对应10/1000us标准浪涌波形(模拟雷击的典型波形)下的峰值电流,体现器件可承受的最大冲击电流。
  • 峰值脉冲功率(Ppp):600W
    同波形下的功率耐受值,反映器件防护能力上限,可应对中等强度的瞬态冲击。
  • 反向漏电流(Ir):5uA(Vrwm下)
    截止状态下的漏电流极小,避免对电路功耗产生额外影响,提升设备能效。

3. 温度特性

工作温度范围为**-55℃~+150℃**,覆盖工业级与部分汽车级应用的温度要求,可在极端环境下稳定工作(如车载高温、工业低温场景)。

三、封装设计与可靠性特点

SMBJ26CA采用SMB(DO-214AA)表面贴装封装,具备以下优势:

  • 小型化布局:封装尺寸约2.3×5.0×1.0mm,紧凑轻便,适合智能手机、小型工业控制器等高密度PCB设计;
  • 焊接兼容性:支持回流焊、波峰焊等标准SMT工艺,生产效率高,适配自动化生产线;
  • 散热与重复防护:封装结构利于脉冲功率快速 dissipation,可承受多次重复瞬态冲击(TVS核心优势之一);
  • 极性简化:双向设计无需区分正负极,减少生产中极性错误风险,提升良率。

四、品牌与质量保障

该型号由FUXINSEMI(富芯森美) 生产,该品牌专注于功率半导体与电路保护器件研发,产品覆盖TVS、MOSFET、二极管等品类,质量控制体系包括:

  • 全自动化生产流程,减少人为误差;
  • 关键参数100%全检,确保批次一致性;
  • 符合RoHS环保标准,无铅无卤,满足绿色制造要求;
  • 针对工业与汽车应用优化,部分批次通过可靠性测试验证。

五、典型应用场景

SMBJ26CA的性能特点使其适配多种电路保护需求:

  1. 消费电子:手机、平板、笔记本的USB接口、HDMI端口、电池充电电路,应对静电放电与插拔浪涌;
  2. 工业控制:PLC输入输出模块、传感器节点、电机驱动电路,抵御工业环境中的雷击与开关瞬态;
  3. 汽车电子:车载充电系统、车灯控制电路、胎压监测传感器,利用宽温特性适应车载环境(-40℃~+125℃);
  4. 通信设备:路由器、交换机、基站的以太网端口、射频接口,防护浪涌与ESD干扰。

总结

SMBJ26CA以双向防护、宽温工作、高功率耐受与小型化封装等特点,成为电路保护领域的高性价比选择,可有效提升各类电子设备的抗干扰能力与长期可靠性,适配从消费电子到工业/汽车的多场景需求。

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