WMSIC Electronic Components

Brightking SMBJ30A/TR13 SMBJ30A

ModelSMBJ30A/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 SMBJ30A / TR13
Type
BRIGHTKING
Minimum package
3000

Technical parameters

Electronic Component
Brightking
Electronic Component
SMBJ30A/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.218g
Electronic Component
1
Electronic Component
BM0257359311
Voltage
48.4V
Current(Ir)
1uA
Voltage(VBR)
33.3V
Electronic Component
3000
Power(Ppp)
600W
Current(Ipp)
12.4A

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

SMBJ30A/TR13 产品概述

一、产品简介

SMBJ30A/TR13 是台湾君耀(Brightking)生产的一款单向瞬态电压抑制器(TVS),专为对直流线路和敏感电子元件提供瞬态过压保护而设计。该器件采用SMB(DO‑214AA)表面贴装封装,能够在受雷击、开关瞬态或静电放电等瞬态事件时快速钳位电压,保护下游电路免受损坏。SMBJ30A/TR13 支持卷带(/TR13)包装,便于自动贴片生产线的大批量装配。

二、主要参数

  • 极性:单向(适用于直流线路保护)
  • 反向工作电压 (Vrwm):30 V
  • 击穿电压 (Vbr):33.3 V(典型)
  • 钳位电压 (Vc):48.4 V(对应峰值脉冲测试条件)
  • 峰值脉冲电流 (Ipp):12.4 A(8/20 μs 波形)
  • 峰值脉冲功率 (Ppp):600 W(8/20 μs)
  • 反向漏电流 (Ir):1 μA(在 Vrwm 条件下典型)
  • 类型:TVS 二极管(瞬态抑制器)
  • 封装:SMB(DO‑214AA),表面贴装
  • 品牌:Brightking(台湾君耀)

三、特点与优势

  • 高能量吸收:600 W 峰值脉冲功率与 12.4 A 的峰值脉冲电流能力,使器件可承受常见的雷击和开关浪涌事件(测试时采用 8/20 μs 波形)。
  • 低夹持电压:在大电流冲击下,48.4 V 的钳位电压能够有效把瞬态电压限制在可接受范围,保护下游元件免于被超过额定电压击穿。
  • 低漏电流:典型反向漏电流为 1 μA,有利于对低功耗或高阻输入电路进行保护,不会显著影响系统静态功耗或偏置条件。
  • 单向结构:适合直流供电系统的保护(如 12 V、24 V 系统),能在正向瞬态时迅速导通夹断。
  • 标准SMB封装:表面贴装、热散能力良好,适合自动化贴片流程及较高的脉冲能量消散需求。
  • 可靠性:Brightking 品牌在 TVS 领域具有成熟的制造与质量控制,适合工业和消费类电子的量产使用。

四、典型应用场景

  • 汽车电子(车载 12 V/24 V 总线的瞬态保护,非安全关键但常用的车载电子模块)
  • 电源输入端浪涌保护(工业电源、适配器、逆变器等)
  • 通信设备和基站电源保护
  • 工业自动化设备的接口和传感器电源保护
  • 消费电子(显示器电源、存储设备、外围接口电源防护)
  • 电池管理、太阳能逆变器等需要对直流高压瞬变进行抑制的场合

五、封装与可靠性

SMB(DO‑214AA)封装为常用的中功率表贴封装,具备较低的热阻和较大的焊盘面积,利于热量扩散与PCB散热设计。器件适用于标准回流焊工艺,但建议按照厂商数据手册的焊接温度曲线执行,以避免过热导致封装或电性能的退化。卷带包装(/TR13)适合高速贴装,降低生产损耗并提高装配效率。

六、使用建议与注意事项

  • 布局建议:将 TVS 尽可能靠近受保护的接口或输入端布置,焊盘走线尽量短且宽,以减少串联电感和电阻,提升钳位效率。
  • 地线处理:对于单端接地的保护电路,确保良好的复合地或隔离地布局,以避免共模耦合导致保护失效。
  • 能量余留:尽管器件能吸收高能量脉冲,但在实际系统中应评估脉冲重复率与能量累积情况,必要时结合串联限流电阻或熔断器共同保护。
  • 温度与功率:在高环境温度或重复脉冲条件下,应做好功率余量和热管理设计,避免长期在极限功率点工作。
  • 测试条件:上述钳位电压与峰值脉冲参数通常基于标准 8/20 μs 测试波形,具体应用中波形不同会对 Ipp 与 Vc 有影响,实际设计时建议参考厂商数据手册并在实际负载条件下做验证。
  • 保存与ESD:器件为静电敏感元件,建议按ESD规范进行存储与装配操作。

七、选型提示

  • 若系统工作电压接近或高于 30 V,应选择额定 Vrwm 更高的型号;若需双向保护或交流线路保护,则选择双向(bidirectional)TVS。
  • 对于更高的脉冲承受能力或更低钳位电压要求,可比较同系列中更高功率或更低钳位型号。
  • 在对漏电流有更严格要求的场合,关注绝对最大反向漏电流和温度相关特性。

总结:SMBJ30A/TR13 以其 30 V 的反向工作电压、600 W 的峰值功率能力、以及小于 1 μA 的低漏电流,为中功率直流供电系统提供可靠、快速的瞬态过压保护,适用于自动化贴片生产与多种工业与消费类场景。选用时请结合实际脉冲波形、环境温度与布局条件,并参照厂商完整数据手册进行最终验证。

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