WMSIC Electronic Components

DOWO SMDJ200CA

ModelSMDJ200CA
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 SMDJ200CA
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SMDJ200CA
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
BM0264801981
Operating Temperature
55℃~+150℃
Voltage
324V
Current(Ir)
2uA
Voltage(VBR)
224V
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.

SMDJ200CA(二向)TVS瞬态抑制二极管 产品概述

一、产品简介

SMDJ200CA 是 DOWO(东沃)推出的一款玻璃钝化芯片 TVS(二极管)器件,采用 SMC(DO-214AB)封装,适用于高能脉冲浪涌保护场合。该器件为双向结构,反向截止电压(Vrwm)为 200V,具有 3000W 峰值脉冲功率能力(10/1000μs 波形,重复率/占空比 0.01%),专为承受雷电或开关冲击类长尾波形浪涌而设计。

二、主要特点

  • 玻璃钝化芯片工艺,稳定性和耐久性好;
  • 双向(Bidirectional)结构,适合交流或正负双向冲击场合;
  • 峰值脉冲功率 Ppp = 3000W(10/1000μs),适合重浪涌防护;
  • 钳位电压 Vc = 324V(典型值),钳位能力优秀,能有效限制瞬态过压;
  • 峰值脉冲电流 Ipp = 9.26A(对应 10/1000μs 波形);
  • 低泄漏电流 Ir = 2μA(在 Vrwm 下),减少静态功耗;
  • 宽工作温度范围:-55℃ ~ +150℃;
  • 快速响应时间,RoHS 合规。

三、电气参数(关键项)

  • 极性:双向
  • 反向截止电压 Vrwm:200V
  • 击穿电压 VBR:224V(典型)
  • 钳位电压 Vc:324V(峰值工作时典型)
  • 峰值脉冲电流 Ipp:9.26A(10/1000μs)
  • 峰值脉冲功率 Ppp:3000W(10/1000μs,0.01% 占空比)
  • 反向泄漏电流 Ir:2μA(在 Vrwm 条件下)
  • 工作温度:-55℃ 至 +150℃

注:以上参数为典型/标称值,具体应用中请参考器件完整规格书并在目标温度与频率条件下验证。

四、封装与热管理

SMC(DO-214AB)封装提供了相对较大的热量扩散面积,适合高能量脉冲吸收。推荐 PCB 布局注意事项:

  • 器件两端走短且粗的铜迹以降低感抗和提升热传导;
  • 在可能的情况下增加散热铜箔或通过孔以帮助热量分散;
  • 若长期经常承受高能脉冲,应考虑系统级散热或与熔丝/限流元件配合使用,以避免器件热失效。

五、典型应用场景

  • 工业电源及逆变器的浪涌保护;
  • 直流母线和高压电源的浪涌抑制;
  • 通信基站、控制柜与开关设备中对雷击/浪涌的防护;
  • 太阳能逆变器、充电桩等需要承受大能量脉冲的场合;
  • 对 EMC/ESD、雷电冲击有严格要求的系统级防护设计。

六、选型与使用建议

  • 确认系统可能出现的最大工作电压并留有余量,Vrwm(200V)应高于系统稳态电压;
  • 在设计中考虑钳位电压对下游器件的影响,Vc=324V 为瞬态钳止电平,若下游器件耐压低需额外措施;
  • 对于连续或高频率冲击环境,应配合熔断器或限流器件以避免器件在能量积累下失效;
  • 布局应尽量缩短进出线长度、采用低感抗走线并保证良好接地;
  • 在安装和焊接过程中遵守制造商的回流焊工艺窗口,避免超温损伤封装或内部结构。

七、包装与可靠性

产品符合 RoHS 要求,适用于工业级环境(温度 -55℃~+150℃)。出厂通常以卷带或托盘包装,便于 SMD 自动贴装。建议在可靠性验证阶段进行实际浪涌试验(10/1000μs)和热循环测试,以确认在目标应用中的长期稳定性。

总结:SMDJ200CA 提供高能量吸收能力、低泄漏与快速响应,适合需要对高能脉冲(如雷击、开关浪涌)进行保护的直流或交流系统。选用时需关注系统耐压、钳位后电压对后级电路的影响,并在 PCB 设计与热管理上采取相应措施以确保长期可靠工作。若需器件详细曲线(I-V、钳位特性、温度系数等)和推荐封装尺寸,请参考 DOWO 官方规格说明书或联系供应商获取完整数据手册。

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