WMSIC Electronic Components

Brightking SMCJ75A/TR13 SMCJ75A

ModelSMCJ75A/TR13
PackageSMC(DO-214AB)
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 SMCJ75A / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ75A/TR13
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.371g
Electronic Component
1
Electronic Component
BM0257356751
Voltage
121V
Current(Ir)
1uA
Voltage(VBR)
83.3V
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.

SMCJ75A/TR13 产品概述

一、产品简介

SMCJ75A/TR13 是台湾 Brightking(君耀)推出的一款单向瞬态电压抑制二极管(TVS),封装为 SMC(DO-214AB)。器件专为抑制雷电浪涌和开关瞬变过电压设计,能在瞬态冲击下迅速钳位电压,保护后端敏感电子器件免受损坏。其设计适用于中高电压直流系统及工业电源保护场景。

二、主要参数

  • 极性:单向(Uni-directional)
  • 反向截止电压 Vrwm:75 V(稳态工作电压)
  • 击穿电压(Vbr):约 83.3 V(典型)
  • 钳位电压 Vc:121 V(在峰值脉冲电流条件下)
  • 峰值脉冲电流 Ipp:12.4 A(对应测试条件下)
  • 峰值脉冲功率 Ppp:1.5 kW(典型瞬态测试条件)
  • 反向漏电流 Ir:1 μA(在 Vrwm 下的典型值)
  • 类型:TVS(瞬态抑制器)
  • 封装:SMC(DO-214AB)

三、特点与优势

  • 钳位能力强:在额定脉冲条件下钳位电压约 121 V,可有效限制过冲,保护设备。
  • 高能量吸收:1.5 kW 的峰值脉冲功率能力(典型测试条件)适合对抗雷击、开关瞬变等高能瞬态。
  • 低漏电流:在正常工作电压下反向漏电仅约 1 μA,有利于低功耗系统的稳定性。
  • 标准封装:SMC(DO-214AB)便于自动化贴装和散热,适合 PCB 上的可靠安装。

四、典型应用场景

  • 工业电源防护(如 48 V/60 V 系统)
  • 直流母线与逆变器输入保护
  • 通信设备与基站电源线防雷
  • 太阳能逆变器、储能系统的过压瞬态保护
  • 工业控制器、驱动器等对抗大电流浪涌的保护元件

五、选型与使用建议

  • Vrwm 选型:Vrwm(75 V)应略高于电路的最大工作电压,常见做法是将 Vrwm 选为正常工作电压附近或稍高,以避免在正常工作期间触发击穿。
  • 钳位考量:设计时以器件在 Ipp 条件下的钳位电压(121 V)作为被保护节点的最高允许电压参考,确保后端器件耐压高于此值或增加额外的抑制/限流措施。
  • 瞬态脉冲规范:Ppp 和 Ipp 是在特定波形(制造商数据通常基于标准 8/20 μs 或 10/1000 μs 测试)下得到的典型值,实际工程应用应参考完整数据手册并考虑可能的重复脉冲和能量累计效应。
  • 并联/并联限制:若需更高能量吸收,可考虑并联相同型号器件,但需注意均流问题与热管理,不建议长期并联作为常规放大手段。
  • 与熔断器配合:在高能量环境下,建议与合适熔断器或限流元件配合使用,防止在极端情况下器件损毁或引起更大故障。

六、封装与焊接注意事项

  • 封装为 SMC(DO-214AB),适合回流焊工艺。遵循制造商的回流曲线与温度限制,避免过热导致性能退化。
  • PCB 布局建议:尽可能将 TVS 靠近受保护引脚放置,减小阻抗路径;保证良好的散热铜箔与通孔,必要时加大地线铜面积。
  • 极性标识:单向型在器件表面有阴极条,应按标识连接,阴极常接到电源正端或被保护线的高电位端,阳极接地/参考端。
  • 储存与保管:避免潮湿与长时间高温保存,若采用卷带或盘装,遵循封装防潮要求,开盘后按回流焊制程及时使用。

备注:以上参数为器件典型值与常规建议,最终工程设计应参照 Brightking 的完整数据手册并在目标工况下进行实际测试验证。若需更详细的浪涌曲线、脉冲功率测试条件或 PCB 推荐样式,可查询官方规格书或联系供应商技术支持。

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