WMSIC Electronic Components

Brightking SMCJ300A/TR13 SMCJ300A

ModelSMCJ300A/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 SMCJ300A / TR13
Type
SMC(DO-214AB)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ300A/TR13
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.375g
Electronic Component
1
Electronic Component
BM0259733008
Operating Temperature
55℃~+150℃
Voltage
486V
Current(Ir)
1uA
Voltage(VBR)
335V
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.

SMCJ300A/TR13 产品概述

一、概述

SMCJ300A/TR13 是 Brightking(台湾君耀)推出的一款单向瞬态电压抑制二极管(TVS),采用SMC(DO-214AB)表面贴装封装,专为电路板空间受限且需高能量浪涌保护的场合设计。该器件具有高反向截止电压(Vrwm=300V)、优异的钳位能力(Vc≈486V)与高峰值脉冲功率能力(Ppp=1.5kW),可对电源线和信号线上的大幅度瞬态过电压进行有效吸收与钳制,保护后级器件免受损害。

二、主要电气参数(关键值)

  • 极性:单向
  • 反向截止电压 Vrwm:300 V
  • 击穿电压 VBR(I test):335 V
  • 钳位电压 Vc(峰值脉冲条件下):486 V
  • 峰值脉冲电流 Ipp:3.1 A
  • 峰值脉冲功率 Ppp:1.5 kW
  • 反向漏电流 Ir:1 μA(常温典型)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 封装:SMC(DO-214AB)表面贴装
  • 类型:TVS(瞬态抑制二极管)
    (以上参数为器件典型或典型测试条件下的参考值,具体应用中请参照厂家数据手册。)

三、产品特性与优势

  • 表面贴装封装:SMC 封装为布局紧凑的SMD形式,便于自动化贴装和高密度PCB设计,节省空间并提升装配效率。
  • 低外形设计:适合对高度敏感的应用场景,如机箱内部空间受限的电源或接口板。
  • 内置应力消除结构:封装结构改良以降低热应力与机械应力对结点可靠性的影响,提高长期稳定性。
  • 玻璃钝化结:增强结面稳定性与湿热环境下的可靠性,降低漏电与漂移。
  • 低电感:使器件在高阶瞬态条件下响应迅速,减小对快速上升沿冲击波形的影响,提升抑制效果。
  • 出色的钳位能力:在规定脉冲条件下可将过电压钳制在安全范围,减少下游器件遭受过压损伤的风险。

四、典型应用场景

  • I/O 接口保护:用于通信接口、串行/并行总线及外设接口,防止来自外部连接器的瞬态浪涌侵入。
  • AC/DC 电源抑制:用于电源输入端或各路辅助电源的浪涌保护,特别适合中高压直流或工业电源系统。
  • 工业控制设备、楼宇自控和电源模块等需要高能量抑制的场合。

五、使用建议与布局要点

  • 放置位置:将 TVS 器件尽量靠近被保护的接入端或连接器,短而粗的引线可降低串联电感和抑制延迟。
  • PCB 布局:保护器件到被保护点的铜迹尽量短、宽;接地回路应低阻低感,若条件允许使用多层或大的接地平面以改善散热与回流。
  • 散热管理:在频繁或高能量冲击环境下考虑增加散热面积或使用热沉结构,以延长器件寿命并避免温升过高。
  • 焊接工艺:遵循SMC封装的典型回流焊温度曲线进行焊接,避免超过厂家推荐的峰值温度和时间,以免影响封装与内部结构。

六、可靠性与环境适应

SMCJ300A/TR13 的工作温度覆盖 -55 ℃ 至 +150 ℃,适用于工业级工作环境;玻璃钝化与内应力消除设计提高了在潮湿、振动及温度循环等恶劣环境下的长期可靠性。典型漏电和击穿特性保证在长期服役中具有稳定的保护性能。

七、小结

SMCJ300A/TR13 是一款面向中高压电源与接口保护的单向 TVS 器件,结合 SMC 小外形封装、低电感和高能量吸收能力,适用于需要高效瞬态抑制且对 PCB 布局空间敏感的工业和电源应用。选型时请参考完整的数据手册以确认具体测试条件及浪涌波形下的额定值,确保在目标应用场景中提供可靠保护。若需进一步的电气参数曲线、封装尺寸或参考布局文件,可向 Brightking(台湾君耀)或其授权代理获取详细资料。

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