WMSIC Electronic Components

Brightking SMBJ400A/TR13 SMBJ400A

ModelSMBJ400A/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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMBJ400A / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMBJ400A/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
BM0257365936
Operating Temperature
65℃~+150℃
Voltage
648V
Current(Ir)
1uA
Voltage(VBR)
447V
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.

SMBJ400A/TR13 产品概述

一、产品简介

SMBJ400A/TR13 为 Brightking(台湾君耀)出品的一款单向瞬态电压抑制二极管(TVS),采用 SMB(DO-214AA)封装,专为工业级高压直流与交流保护设计。器件在正常工作状态下对反向电压具备高耐受性,并能在瞬态过压事件发生时以低阻抗路径快速钳位,保护后端敏感电子器件免受浪涌与雷击冲击。

二、主要电气参数

  • 极性:单向(Unidirectional)
  • 反向额定截止电压 Vrwm:400 V
  • 击穿电压(典型):447 V
  • 钳位电压(典型):648 V(在额定脉冲条件下)
  • 峰值脉冲功率 Ppp:600 W(按厂方标准脉冲条件评定)
  • 峰值脉冲电流 Ipp:900 mA(参数中给出,若用于能量计算请与供应商确认单位与脉冲波形)
  • 反向漏电流 Ir:1 μA(在 Vrwm 条件下典型)
  • 工作温度范围:-65 ℃ ~ +150 ℃

三、产品特性与优势

  • 高电压耐受:Vrwm 达 400 V,适合高压供电系统与中高压总线的瞬态保护。
  • 高功率吸收能力:600 W 峰值脉冲功率,在标准脉冲条件下能可靠吸收短时浪涌能量。
  • 快速响应:TVS 二极管具有纳秒级响应时间,能在过压初期迅速钳位,限制电压上升。
  • 低漏电流:典型 Ir 仅 1 μA,有助于在高压应用中减少正常运行功耗与发热。
  • 宽工作温度:-65 ℃ 至 +150 ℃,适用于工业、汽车及户外环境的严苛温度条件。
  • 标准化封装:SMB(DO-214AA)易于自动化贴装、焊接与散热管理。

四、典型应用场景

  • 高压直流供电保护(如工业控制、光伏逆变器级联保护)
  • 中高压交流系统的局部器件保护
  • 配电箱、变电柜中对继电器、控制板的浪涌防护
  • 通信基站、电源模块及电驱系统的过压抑制
  • 任何需在 400 V 级别反向工作电压下实现瞬态抑制的场合

五、封装与安装要点

  • 封装:SMB(DO-214AA),推荐采用常规 SMB PCB 尺寸与焊盘布局,保证焊接良好及热阻最小化。
  • 极性标识:单向器件有明确阴极标志,安装时须保证正确方向以实现反向截止与正向短路保护策略。
  • 散热考虑:在高脉冲能量或频繁冲击场景,应优化铜箔面积极大化散热路径,必要时增加散热铜柱或散热片。
  • 焊接工艺:遵循回流焊曲线限制峰值温度和时间,以免影响封装与内部结可靠性。

六、使用建议与注意事项

  • 验证脉冲波形:厂方的 Ppp、Ipp 通常基于特定脉冲波形(例如 10/1000 μs 等),在设计时请确认实际干扰波形与厂标一致,或进行实际浪涌仿真。
  • 单向器件方向性:单向 TVS 在正向承受较低的正向电压降,正向导通应视作保护动作后短时现象,需配合熔断器或限流措施防止持续过流。
  • 长期可靠性:若设备工作于高温高压环境,建议在热管理与去耦设计上采取余量,避免频繁触发导致寿命下降。
  • 单位核对:文档中 Ipp 标示为 900 mA,考虑到 TVS 峰值冲击电流常以安培计,请在关键可靠性计算前与供应商确认单位与测量条件。

七、总结

SMBJ400A/TR13 是一款面向高压应用的单向 TVS,凭借 400 V 的反向额定电压、600 W 的脉冲吸收能力及宽温工作范围,适用于工业、电力与通信等需高压瞬态保护的场景。在实际设计中,建议结合具体脉冲波形、散热条件与安装方式进行选型与验证,以确保长期稳定可靠的保护效果。若需详细的脉冲测试曲线、典型钳位随电流变化图或封装尺寸图,可向 Brightking 获取完整数据手册。

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