WMSIC Electronic Components

Brightking SMBJ300CA/TR13 SMBJ300CA

ModelSMBJ300CA/TR13
PackageSMB(DO-214AA)
BrandBrightking
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
Brightking SMBJ300CA / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMBJ300CA/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.198g
Electronic Component
1
Electronic Component
BM0230686928
Voltage
486V
Current(Ir)
1uA
Voltage(VBR)
335V
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.

SMBJ300CA/TR13 —— Brightking(台湾君耀)双向TVS二极管产品概述

SMBJ300CA/TR13 是 Brightking(台湾君耀)推出的一款双向瞬态电压抑制(TVS)二极管,封装为 SMB(DO-214AA),专为 300V 等级的反向耐压系统提供瞬态过电压保护。该型号具有高峰值功率能力、低反向泄漏电流和明确的箝位特性,适用于工业电源、逆变器、UPS、照明驱动及高压直流或交流接口的浪涌保护。

一、关键规格(典型 / 标称)

  • 型号:SMBJ300CA/TR13
  • 品牌:Brightking(台湾君耀)
  • 封装:SMB (DO-214AA)
  • 类型:双向 TVS 二极管
  • 反向截止电压 Vrwm:300 V(反向耐压/工作电压)
  • 击穿电压 Vbr:335 V(标称)
  • 钳位电压 Vc:486 V(于峰值脉冲条件下)
  • 峰值脉冲功率 Ppp:600 W(典型 10/1000µs 波形测试,具体请参照厂家规范)
  • 峰值脉冲电流 Ipp:1.3 A(对应标称钳位点)
  • 反向电流 Ir:1 µA(在 Vrwm 条件下的典型泄漏)
  • 极性:双向(对交流或极性可变系统对称保护)
  • 包装:TR13(卷带,适用于自动贴片线)

二、特性与优势

  • 高耐能:600W 峰值脉冲功率可吸收短时大能量浪涌,适合工业级浪涌环境。
  • 低泄漏:1 µA 的低反向泄漏电流,减少工作状态下的能耗与热量产生。
  • 双向保护:对正负方向浪涌对称响应,便于在交流和双极性直流线缆上使用,无需额外极性判断。
  • 稳定的箝位性能:当系统遭受冲击时,器件将把过电压钳位在约 486 V,有效保护下游器件不被更高电压损坏。
  • 标准 SMB 封装:适于表面贴装工艺,可靠的焊接强度与散热能力,便于量产装配。

三、典型应用场景

  • 工业电源与机柜保护(电源总线、模块化电源输入端)
  • 太阳能逆变器、风电变流器的直流母线保护
  • UPS 系统、开关电源(SMPS)高压端防护
  • 电机驱动器及变频器的接口保护
  • 高压照明驱动、电力电子接口、充电桩及电动工具电路
  • 高压信号线、传感器电源线的瞬态抑制

四、使用与布局建议

  • 位于被保护节点与地之间直接并联安装,布局尽量缩短引线与走线长度,以降低寄生电感,提升响应速度与钳位效率。
  • 对于高能量、重复浪涌场景,建议在 TVS 前端配合快熔断器或限流器(PTC、NTC、熔丝)使用,避免器件过载或因连续大能量冲击导致失效。
  • SMB 封装在回流焊时注意温度曲线,遵守厂家的焊接温度和时间限制,以免封装和焊脚受损。TR13 卷带包装利于 SMT 自动化贴片。

五、选型注意事项

  • Vrwm(300V)应高于正常工作电压且低于被保护电路最大承受电压;系统持续工作电压若接近 Vrwm,应留有安全裕度。
  • 钳位电压(486V)决定了被保护负载在浪涌时承受的最高电压,选型时需确保下游元件的耐压高于该钳位值。
  • 若系统需要吸收更大冲击能量或更高瞬态电流,应选择更高功率等级 TVS 或并联多个器件,并确保热管理与熔丝保护到位。
  • 双向器件适合交流/双极性场合,若只是单向直流保护,可选单向型以获得更低的钳位电压。

六、可靠性与包装

  • Brightking 提供商业级与工业级测试报告,SMBJ300CA/TR13 一般按行业标准做 10/1000µs 测试并给出 Ppp、Vc 等典型值,采购时可索取完整数据手册与测试曲线。
  • TR13 为卷带包装,支持标准 SMT 线批量贴装,订购时请确认包装卷长、出货形式与保管条件。

总结:SMBJ300CA/TR13 以其 300V 反向耐压、600W 峰值吸收能力和双向保护特性,适合对高压直流或交流线路进行短时浪涌防护。正确的布局、配合限流器件以及参照厂家 Datasheet 中的典型测试条件与最大额定值,将有助于在实际工程中获得可靠、稳定的过压防护效果。若需完整参数曲线或在特殊环境(高温、重复冲击、长线感应等)下的设计建议,建议提供具体工作电压及浪涌工况,以便给出更精确的选型和保护方案。

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