WMSIC Electronic Components

Brightking SMCJ18A/TR13 SMCJ18A

ModelSMCJ18A/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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMCJ18A / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ18A/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
BM0258837091
Operating Temperature
65℃~+150℃
Voltage
29.2V
Current(Ir)
1uA
Voltage(VBR)
20V
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.

SMCJ18A/TR13 产品概述

一、概述

SMCJ18A/TR13 是 Brightking(台湾君耀)推出的一款单向瞬态电压抑制(TVS)二极管,采用 SMC(DO‑214AB)表面贴装封装,专为对 PCB 空间和高度有要求的电路板设计。该器件提供高能量冲击吸收能力、低泄漏和低夹位电压,适合保护 I/O 接口与 AC/DC 电源等易受浪涌或瞬态过压影响的线路。

二、主要电气参数

  • 类型:TVS,单向(unidirectional)
  • 反向稳态电压(Vrwm):18 V
  • 击穿电压(VBR):20 V(典型/测试条件见厂方资料)
  • 钳位电压(Vc):29.2 V(在额定脉冲条件下)
  • 峰值脉冲电流(Ipp):51.4 A
  • 峰值脉冲功率(Ppp):1.5 kW
  • 反向电流(Ir):1 μA(在 Vrwm 条件下)
  • 工作温度:-65 ℃ ~ +150 ℃
  • 封装:SMC (DO‑214AB)
  • 封装/制造特性:玻璃钝化结、低电感、内置应力消除、低轮廓

以上参数为器件典型/标称值,具体测试条件与波形(如 8/20 μs 浪涌)请参考厂方完整数据手册。

三、关键特性与优势

  • 高冲击吸收能力:1.5 kW 峰值脉冲功率与 51.4 A 峰值脉冲电流,能够在短脉冲冲击下有效限幅,保护后级器件免受过压损坏。
  • 优秀夹位能力:29.2 V 的钳位电压在额定浪涌下可将瞬态电压限制在安全范围内,减少设备应力。
  • 低漏电流:1 μA 的反向漏电在常温下保持低功耗,适合对静态功耗敏感的系统。
  • 宽工作温度:-65 ℃ 至 +150 ℃,适用于工业级及汽车电子环境(具体应用请结合认证与测试)。
  • 表面贴装:SMC 封装为低轮廓、可回流贴装形式,有利于自动化装配并节省电路板空间。
  • 结构可靠:玻璃钝化结和内置应力消除设计提升长期稳定性与可靠性,低电感特性有利于高频/高速接口的保护。

四、典型应用场景

  • I/O 接口保护:USB、RS‑232/485、以太网 PHY 前端等接口的浪涌与静电防护。
  • AC/DC 电源防护:直流母线或开关电源输入端的瞬态过压保护与浪涌抑制。
  • 工业与通信设备:供电模块、接口板、配电单元中抗浪涌保护。
  • 其他易受瞬态冲击的电子系统:如电机驱动、电力电子、测试与测量设备等。

五、安装与 PCB 布局建议

  • 放置位置:将 TVS 器件尽量靠近需保护的外部连接点(如电源插座、I/O 端子或信号连接器),以减小未保护引线长度。
  • 导线与焊盘:使用短、宽的走线和焊盘,降低串联电阻与电感,提高浪涌承受能力与散热性能。
  • 接地处理:单端接地(单向 TVS)时,确保器件负端(一般为带标记的端)直接连接到低阻抗地,地回流路径尽可能短。
  • 热管理:SMC 封装通过端帽将热量传导至焊盘与 PCB,必要时在焊盘下规划铜面或过孔以增强散热能力。
  • 回流焊:遵循 JEDEC/IPC 推荐的回流工艺曲线进行焊接,避免超温损伤封装材料。具体回流温度与时间请参照制造商推荐。

六、可靠性、检测与存储

  • 器件采用玻璃钝化结,抗热循环和机械应力能力优越,有利于长期可靠运行。
  • 在生产与储运过程中建议按 ESD 管理规定操作,避免静电损坏。
  • 卷装(Tape & Reel)包装利于自动化贴装;关于 TR13 后缀的具体含义(如卷轴规格等),请参照 Brightking 的订货信息或直接咨询厂家技术支持。
  • 对于关键应用,建议根据实际系统浪涌源与波形做样件测试(包括不同温度、重复浪涌与电源噪声情况下的试验)以验证性能。

七、订购信息与技术支持

型号:SMCJ18A/TR13 品牌:Brightking(台湾君耀) 封装:SMC (DO‑214AB) 关于更详细的电气测试条件、浪涌曲线、封装尺寸与 PCB 推荐焊盘,请参阅厂方完整数据手册或联系 Brightking 技术支持获取样片与 Gerber/IPC 推荐布局资料。

备注:本文档基于提供的主要参数与器件特性做摘要与应用建议,具体工程应用请以制造商正式数据表与认证为准。

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