WMSIC Electronic Components

Brightking 5.0SMDJ70CA/TR13 5.0SMDJ70CA

Model5.0SMDJ70CA/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 5.0SMDJ70CA / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
5.0SMDJ70CA/TR13
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.389g
Electronic Component
1
Electronic Component
BM0228051954
Operating Temperature
55℃~+150℃
Voltage
113V
Current(Ir)
2uA
Voltage(VBR)
77.8V
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.

SMDJ70CA/TR13 产品概述

一、概述与定位

SMDJ70CA/TR13 为 Brightking(台湾君耀)出品的双向瞬态电压抑制器(TVS 二极管),采用 SMC(DO-214AB)封装,专为防护交流或双向脉冲干扰设计。其主要用于保护电源线、信号线和其它容易受到雷击、开关突变或静电放电等高能瞬态脉冲侵扰的电子设备与模块。器件设计兼顾高脉冲承受能力与低泄漏电流,适合工业、电力、通信和汽车附件等场合。

二、主要电气参数(关键指标)

  • 极性:双向(Bidirectional),可同时抑制正向与反向瞬态电压
  • 反向截止电压(Vrwm):70 V(工作稳态电压)
  • 钳位电压(Vclamp):113 V(在峰值脉冲电流条件下的最大钳位)
  • 峰值脉冲电流(Ipp):44.3 A(器件在标准脉冲条件下可承受的峰值电流)
  • 峰值脉冲功率(Ppp):5 kW(典型按行业惯例的 10/1000 μs 脉冲参数)
  • 击穿电压(Vbr):77.8 V(器件进入雪崩区的电压)
  • 反向电流(Ir):2 μA(低漏电流,减少正常工作时的功耗)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 封装:SMC(DO-214AB),便于散热和波峰/回流焊装配
  • 类型:TVS(瞬态抑制二极管) 说明:以上参数为典型/最大值,应参考完整数据手册进行电路设计与板级验证。

三、性能解析与设计意义

  • 双向保护:器件在正负极性瞬态事件中均能快速进入雪崩导通状态,将高能量脉冲钳位在安全范围内,使被保护电路免受破坏。适用于交流回路或可能出现反向瞬态的信号线。
  • 钳位能力与吸收能量:113 V 的钳位电压配合 44.3 A 的峰值脉冲电流,可在高能脉冲(如雷击诱发浪涌或大电流开关瞬变)时将能量快速分流。5 kW 的峰值功率表明其在单次大能量脉冲事件中具有显著吸收能力。
  • 低泄漏与高温稳定性:2 μA 的反向电流在大多数电源/信号应用中不会显著增加待机功耗;-55 ℃ 至 +150 ℃ 的宽温度范围保证在严苛环境下仍能可靠工作,适合工业级和部分汽车类应用(需按车规要求验证)。

四、封装、散热与PCB布局建议

  • SMC(DO-214AB)封装提供较大的散热面积,焊盘设计应尽量扩大铜箔并通过热铜层或多层过孔将热量引导至内层/底层,降低结温。
  • 将 TVS 近距离放置于被保护端口(如输入电源入口、连接器端)以缩短寄生电感,提升钳位响应速度。
  • 在高能量应用中,建议沿着脉冲电流路径增加充足的回流铜,避免细长窄 traces 导致压降或局部过热。
  • 对于双向应用,确保两端接地/共地良好,避免地回路产生共模干扰。

五、典型应用场景

  • 工业电源与电机控制器的输入浪涌防护
  • 配电箱、楼宇自动化的雷击与浪涌吸收
  • 通信基站、网络设备的电源与信号线保护
  • 车载附件与电源管理(需确认车规等级与认证)
  • 太阳能逆变器、风能控制器等高能脉冲环境下的防护

六、使用注意事项与替代建议

  • 选择器件时应综合考虑脉冲波形(常用 8/20 μs 或 10/1000 μs)、能量等级与多次冲击能力;若存在连续多次冲击情况,应评估器件的累积热应力与寿命。
  • 在高温或高频繁冲击应用中,需留有安全裕量,不要仅按最大额定值靠近上限设计。
  • 如需更高的钳位性能或更小的引脚寄生,可评估其它封装或并联多只 TVS 的方案(并联需保证电流均分)。
  • 订购时注意后缀(/TR13)代表卷带包装(Tape & Reel),便于贴片自动化装配。

本产品适合对抗高能瞬态脉冲的实际工程应用。为确保系统的长期可靠性,请在最终设计中结合完整数据手册的动态特性曲线、热阻值及测试条件进行仿真与样机验证。

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