WMSIC Electronic Components

DOWO SMCJ26CA

ModelSMCJ26CA
PackageSMC(DO-214AB)
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO SMCJ26CA
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SMCJ26CA
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.4g
Electronic Component
1
Electronic Component
BM0230826988
Operating Temperature
55℃~+150℃
Voltage
42.1V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
28.9V

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

SMCJ26CA 产品概述

一、产品简介

SMCJ26CA 是东沃(DOWO)出品的一款双向瞬态电压抑制二极管(TVS),采用 SMC(DO‑214AB)封装,专为抑制电源与信号线路上的瞬态过电压和静电放电(ESD)而设计。该器件在 10/1000µs 脉冲条件下具有 1.5kW 峰值脉冲功率能力,能在恶劣电磁环境中为敏感电子元件提供可靠保护。

二、主要参数

  • 型号:SMCJ26CA
  • 品牌:DOWO(东沃)
  • 类型:TVS,双向(Bi‑directional)
  • 封装:SMC(DO‑214AB)
  • 反向截止电压 VRWM:26 V
  • 击穿电压(典型):28.9 V
  • 钳位电压 VC(Ipp 条件下):42.1 V
  • 峰值脉冲功率 Ppp(10/1000µs):1.5 kW
  • 峰值脉冲电流 Ipp:35.63 A(与 Ppp/VC 对应)
  • 反向漏电流 Ir:1 µA(常温)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 防护等级 / 标准:符合 IEC 61000‑4‑2(ESD 抗扰度)

三、性能特点

  • 高能量吸收:在标准 10/1000µs 脉冲下可承受高达 1.5kW 的瞬态能量,适合电源突波和雷击残压保护。
  • 低钳位电压:典型钳位电压 42.1V,能在过压发生时将被保护线路的峰值电压限制在可接受范围内,减少后级器件应力。
  • 双向保护:可同时抑制正负极性瞬态,适用于交流或双向信号/电源线路。
  • 宽温度范围:-55℃ 至 +150℃,适合工业级和高温工作环境。
  • 低泄漏电流:反向漏电仅 1µA(常温),对系统静态功耗影响小。
  • 符合 IEC 61000‑4‑2 的 ESD 抗扰要求,增强终端产品的电磁兼容性。

四、典型应用

  • 工业控制与自动化设备的电源和信号端保护
  • 通信设备、基站和数据线路过电压防护
  • 电源模块、开关电源输入端的浪涌保护
  • 汽车电子(符合工作温度要求的场合)与车载附件保护(需配合系统规范评估)
  • 消费电子、安防设备、测量仪器等易受瞬态冲击的电子系统

五、使用建议与注意事项

  • 选型:当系统工作电压接近或等于 26V 时,SMCJ26CA 的反向截止电压 VRWM 为 26V,应确保工作电压低于 VRWM 以避免常态导通。
  • 布局:为发挥最佳保护效果,应将 TVS 尽量靠近被保护端口或接地端放置,并保证短且粗的接地回路。
  • 热管理:高能量吸收会产生热量,长时间或反复冲击时需考虑系统散热与 PCB 铜箔面积。
  • 串联限流:在承受极大脉冲或高频重复脉冲场景下,建议配合熔断器或限流电阻,以保护 TVS 本体及系统元件。
  • 环境兼容性:工作温度范围宽,但在极端环境(如高湿、高腐蚀)下应考虑封装与防护处理。

六、封装与采购信息

SMCJ26CA 采用行业通用的 SMC(DO‑214AB)表面贴装封装,适配常见 PCB 贴装工艺和焊接流程。东沃(DOWO)提供的该型号适合批量生产与替换设计,选购时请确认完整型号与规格书以确保与系统匹配。

如需进一步的典型电气曲线、瞬态响应波形或机械尺寸图(封装尺寸与焊盘建议),建议索取厂家数据手册或联系东沃技术支持以获得详细资料。

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