WMSIC Electronic Components

HXY MOSFET SMBJ7.0CA

ModelSMBJ7.0CA
PackageSMB(DO-214AA)
BrandHXY MOSFET
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
HXY MOSFET SMBJ7.0CA
Type
HXY MOSFET
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HXY MOSFET
Electronic Component
SMBJ7.0CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.19g
Electronic Component
1
Electronic Component
BM0258662254
Voltage
12V
Current(Ir)
200uA
Voltage(VBR)
7.78V
Electronic Component
Electronic Component
Electronic Component
3000

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

SMBJ7.0CA 瞬态抑制二极管(TVS)产品概述

SMBJ7.0CA是华轩阳电子(HXY MOSFET)推出的双向瞬态抑制二极管(TVS),采用SMB(DO-214AA)表面贴装封装,专为电子电路中的瞬态过压防护设计,可有效抑制静电放电(ESD)、雷击浪涌、开关瞬态等异常高压脉冲,保护敏感电子元器件免受损坏。

一、产品基本信息

  • 品牌型号:华轩阳电子(HXY MOSFET)SMBJ7.0CA
  • 器件类型:双向瞬态抑制二极管(TVS)
  • 封装形式:SMB(DO-214AA)表面贴装封装
  • 核心功能:双向过压保护,抑制正负瞬态脉冲

二、核心电气参数深度解析

SMBJ7.0CA的电气参数经过严格测试,关键指标需结合应用场景匹配设计:

  1. 反向截止电压(Vrwm):7V
    即器件在直流工作状态下不导通的最大电压,需确保电路正常工作电压低于该值(如5V电路适配性强)。

  2. 击穿电压(Vbr):7.78V(典型值)
    反向偏置下,器件开始导通的电压阈值,是钳位保护的起始点,误差范围小(通常±5%),保证保护一致性。

  3. 钳位电压(Vc):12V(@Ipp=50A)
    当峰值脉冲电流达到50A时,器件两端电压被钳位在12V以内,是保护后级电路的核心指标(需确保后级器件最大耐受电压≥12V)。

  4. 峰值脉冲电流(Ipp):50A(@10/1000μs波形)
    10/1000μs为国际通用浪涌波形标准(上升时间10μs,半峰值时间1000μs),可满足多数消费电子、通信设备的浪涌防护需求。

  5. 峰值脉冲功率(Ppp):600W(@10/1000μs)
    浪涌脉冲最大功率(计算:Vc×Ipp=12V×50A=600W),体现器件浪涌耐受能力。

  6. 反向漏电流(Ir):200μA(@Vrwm=7V)
    正常工作电压下的漏电流极低,对电路正常工作干扰极小,不增加系统功耗。

三、封装与物理特性

SMB(DO-214AA)封装是TVS器件的主流表面贴装形式,具有以下优势:

  • 尺寸小巧:典型尺寸2.9mm(长)×4.0mm(宽)×1.5mm(高),适配高密度PCB布局;
  • 焊接便捷:引脚间距适中,兼容回流焊(260℃/10s)、波峰焊(260℃/5s)工艺;
  • 耐温范围:工作温度-55℃~150℃,满足工业级、消费级产品环境要求;
  • 双向引脚:无需区分阳极/阴极,简化电路设计与生产焊接流程。

四、典型应用场景

SMBJ7.0CA的参数特性适配多种电子设备的过压防护:

  1. 消费电子:手机、平板、笔记本的USB接口、充电端口(应对插拔静电、电源浪涌);
  2. 通信设备:路由器、交换机的以太网端口、射频接口(抑制雷击浪涌、信号瞬态);
  3. 工业控制:PLC模块、传感器节点的电源/信号线路(保护敏感芯片免受工业环境浪涌);
  4. 电源系统:开关电源、DC-DC转换器的输出端(抑制开关瞬态过压);
  5. 车载电子:车载充电器、显示屏的低压线路(应对汽车点火瞬态、电池波动)。

五、关键性能优势

  1. 双向保护无极性:适配所有单向/双向过压场景,降低设计复杂度;
  2. 快速响应(ns级):响应时间<1ns,可瞬间抑制静电放电等高速脉冲;
  3. 低功耗低干扰:200μA漏电流对电路无明显影响,不增加系统待机功耗;
  4. 高功率密度:600W峰值功率在SMB封装中表现优异,小体积实现强防护;
  5. 稳定可靠:击穿电压、钳位电压一致性好,经批量测试满足工业级可靠性要求。

六、选型与使用注意事项

  1. 参数匹配:
    • Vrwm需≥电路正常工作电压(如5V电路选7V适配);
    • 钳位电压Vc需≤后级器件最大耐受电压(如芯片耐15V则12V安全);
  2. 浪涌扩展:若实际浪涌电流超50A,可并联多个器件(需注意均流设计);
  3. 焊接防护:避免过温焊接(超260℃/10s),防止封装开裂或参数漂移;
  4. 布局建议:尽量靠近被保护端口/器件,缩短引线长度,减少寄生电感影响。

SMBJ7.0CA凭借双向保护、小体积、高功率密度等优势,成为消费电子、通信、工业等领域过压防护的高性价比选择,可有效提升电子设备的可靠性与抗干扰能力。

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