WMSIC Electronic Components

DOWO SMBJ100CA

ModelSMBJ100CA
PackageSMB(DO-214AA)
BrandDOWO
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO SMBJ100CA
Type
DOWO
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SMBJ100CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.2g
Electronic Component
1
Electronic Component
BM0258760016
Operating Temperature
55℃~+150℃
Voltage
162V
Current(Ir)
1uA
Voltage(VBR)
111V
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.

SMBJ100CA 产品概述

一、产品简介

SMBJ100CA 是 DOWO(东沃)出品的一款双向瞬态电压抑制器(TVS),采用 SMB(DO-214AA)封装,专为抑制脉冲过电压、保护敏感电子器件与电源模块设计。该器件在 10/1000μs 波形下可承受高达 600W 峰值脉冲功率,适用于工业电源、通信设备、逆变器及分布式供电系统的浪涌保护。

二、主要参数

  • 极性:双向(Bidirectional),可对正负瞬态同时钳位
  • 反向截止电压(Vrwm):100V(稳态工作电压)
  • 钳位电压(VC):162V(在规定脉冲条件下的典型钳位值)
  • 峰值脉冲电流(Ipp):3.7A(10/1000μs 波形)
  • 峰值脉冲功率(Ppp):600W @ 10/1000μs
  • 击穿电压(Vbr):约 111V(在指定测试电流下)
  • 反向电流(Ir):≤1 μA(在 Vrwm 下)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SMB (DO-214AA)
  • 类型:TVS 瞬态抑制二极管

三、关键特性

  • 高能量吸收能力:在 10/1000μs 波形下 600W 功率承受能力,能有效吸收工业浪涌与雷击诱发的能量。
  • 双向保护:无需区分极性,适合交流或双向脉冲保护场合。
  • 低漏电流:在工作电压下反向电流极小,有利于系统静态功耗控制。
  • 宽温度范围:-55℃ 至 +150℃,适应严苛环境和高温运行场景。
  • 标准封装:SMB 封装便于自动化贴装与散热管理。

四、封装与安装建议

  • 封装类型:SMB(DO-214AA),适配常见 PCB 布局与自动化贴装流程。
  • PCB 布局建议:将 TVS 尽量靠近被保护引脚或输入端放置,走线最短、最粗,以减少寄生电感;若在多层板上使用,应在器件散热端增加铜箔面积并考虑加装散热过孔。
  • 焊接说明:兼容常规回流焊工艺,建议遵循器件制造商提供的焊接温度曲线以保证长期可靠性。

五、典型应用场景

  • 工业直流总线(如 48V/60V 系统)与逆变器输入端保护。
  • 通信与基站电源防护、防雷浪涌吸收。
  • 电机驱动、电源转换器及配电箱的过压保护。
  • 电池管理与储能系统的端子防护(需结合系统工作电压谨慎选型)。

六、使用与注意事项

  • 选型时确认系统最大持续工作电压不超过 Vrwm(100V),并考虑过电压裕量。
  • 对于频繁发生冲击的场合,应评估器件的热累积与重复冲击能力,必要时采用并联/级联或更高功率等级的 TVS。
  • 由于为双向器件,当只需单向保护时可考虑单向 TVS 以获得更低钳位电压。
  • 推荐在输入端同时配合熔断器或限流元件,以避免在极端过流条件下器件损毁或引起系统连锁故障。

七、可靠性与环境适应性

  • 本器件设计用于高能环境下的瞬态能量吸收,工作温度与漏电参数在宽温区间内保持稳定。
  • 在潮湿、盐雾或腐蚀性环境中使用时,应在系统层面采取封装或涂覆防护措施以延长寿命。
  • 对于关键应用(如电网或航天级系统),建议结合实际寿命和加速应力测试结果评估长期可靠性。

八、选型建议与替代方案

  • 在选型时优先匹配关键参数:Vrwm(100V)、VC、Ppp(600W @10/1000μs)及封装形式。
  • 如需更高冲击电流或更低钳位电压,可考虑选择更高功率等级或并联多个器件,但并联时需注意均流问题。
  • 采购时注明品牌与型号(DOWO SMBJ100CA),并索取完整数据手册及可靠性测试报告,以确保与具体应用的兼容性。

此概要提供了 SMBJ100CA 的核心性能与应用指导,便于工程师在电路保护设计中快速评估与应用。如需具体电气特性曲线、浪涌测试条件或封装机械图纸,可向供应商获取完整数据手册。

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