WMSIC Electronic Components

Brightking SMAJ350CA/TR13 SMAJ350CA

ModelSMAJ350CA/TR13
PackageSMA
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMAJ350CA / TR13
Type
SMA
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMAJ350CA/TR13
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.124g
Electronic Component
1
Electronic Component
BM0259716190
Operating Temperature
55℃~+150℃
Voltage
567V
Current(Ir)
1uA
Voltage(VBR)
391V
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.

SMAJ350CA/TR13 产品概述

一、产品简介

SMAJ350CA/TR13 是来自 Brightking(台湾君耀)的一款双向瞬态电压抑制器(TVS),采用 SMA 封装并以卷带(TR13)形式供货,针对高压直流/交流系统的瞬态过电压保护设计。该器件在反向截止电压(Vrwm)为 350V 的工况下,能在瞬态冲击事件发生时将电压快速钳位至 567V(典型值),峰值脉冲功率可达 400W,适用于需要稳健防护的工业、通信及电源系统。

二、主要技术参数

  • 极性:双向(Bi-directional)
  • 反向截止电压 Vrwm:350V
  • 击穿电压(典型):391V
  • 钳位电压(典型):567V(在指定脉冲条件下)
  • 峰值脉冲电流 Ipp:700mA
  • 峰值脉冲功率 Ppp:400W
  • 反向漏电流 Ir:1 μA(常温)
  • 工作温度范围:-55℃ ~ +150℃
  • 封装:SMA(Surface Mount, DO-214AC)
  • 类型:TVS 双向
  • 品牌:Brightking(台湾君耀)
  • 订货型号:SMAJ350CA/TR13(卷带包装)

三、特性与优势

  • 大电压等级:350V 的反向截止电压适合高压线路、直流母线及高压驱动电路的浪涌保护。
  • 双向保护:能同时应对正负方向的瞬态冲击,适用于交流或双向耦合的应用场合。
  • 高峰值功率与快速响应:400W 的峰值脉冲功率与亚微秒级动作时间,可以在突发浪涌瞬间迅速钳位,保护下游敏感器件。
  • 低漏电流:典型 1 μA 的反向漏电流,有利于高阻电路、测量与感应装置的低功耗要求。
  • 宽工作温度:-55℃ 至 +150℃ 的耐温范围,满足工业与户外恶劣环境使用。

四、典型应用场景

  • 工业电源母线和高压直流系统(如 48V/120V 以上的保护环节)
  • 逆变器、变频器及高压电驱动模块的输入侧瞬态防护
  • 通信基站、远程终端设备(RTU)及配电监测设备的浪涌保护
  • 电池管理系统(BMS)与充电设施中对瞬态过电压的防护
  • 需要双向浪涌抑制的线路保护场合

五、设计与布局建议

  • 作为瞬态器件,SMAJ350CA 应置于受保护回路靠近入端的位置,尽量靠近连接点以缩短回路感抗,提升钳位效率。
  • 在 PCB 布局上保留足够的焊盘面积和散热铜箔,SMA 封装的热阻受焊盘形状与铜量影响较大,良好的散热有助于提升重复浪涌承受能力。
  • 对于重复或较大能量的浪涌事件,建议与限流电阻、熔断器或专用保护电路配合使用,避免 TVS 长时间处于高功率耗散状态。
  • 注意极性正确:双向器件对称但仍需按电路拓扑正确安放,避免误接导致保护无效。

六、可靠性与热特性

  • 在高温或高频繁冲击条件下,TVS 的漏电流与钳位电压会随温度与老化轻微变化,应在设计中预留裕量。
  • 连续工作状态下不得将 TVS 当作稳压器使用;其额定功率为瞬态脉冲功率,长时间承载会引起热失效。
  • 推荐按照厂方提供的冲击波形和测试条件(如 8/20 μs、10/1000 μs 等)评估器件适用性,实测钳位电压与峰值电流关系以指导保护策略。

七、封装与订购信息

  • 封装:SMA(适合SMT回流焊工艺)
  • 包装:卷带(TR13)便于自动贴片生产线取放
  • 型号示例:SMAJ350CA/TR13(请按购货单注明完整型号与包装规格)
  • 购买/替换时注意核对品牌、型号与封装,避免与单向型号或不同 Vrwm 的同类产品混淆。

八、注意事项与选型提示

  • 选型时确认浪涌波形与能量:若系统可能遭受高能雷击或重复强冲击,考虑更高功率等级或并联/外接限流器件。
  • 留意工作电压与安全裕量:Vrwm 350V 表示器件在正常反向工作下的稳态电压,选型应保证系统工作电压不长期接近或超过该值。
  • 温漂与漏电:在高温环境中漏电流会上升,关键应用应以最大工作温度下的泄漏值作为判断依据。
  • 如需进一步电气特性曲线(I-V 曲线、钳位特性在不同脉冲条件下的数据)或可靠性认证信息,请向 Brightking 或供应商索取详细数据手册与测试报告以完成最终验证。

以上为 SMAJ350CA/TR13 的概述与应用建议,适用于在高压瞬态防护设计中快速评估与集成。若需针对特定系统的保护方案或仿真数据,可提供系统参数以便进一步分析。

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