WMSIC Electronic Components

Jingdao Microelectronics SMCJ54A

ModelSMCJ54A
PackageSMC
BrandElectronic
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
Electronic SMCJ54A
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMCJ54A
Electronic Component
1
Package
SMC
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.381g
Electronic Component
1
Electronic Component
BM0228061682
Operating Temperature
55℃~+150℃
Voltage
87.1V
Current(Ir)
1uA
Voltage(VBR)
66.3V
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.

SMCJ54A(晶导微电子)产品概述

一、产品简介

SMCJ54A 为晶导微电子(GGE)推出的大功率瞬态抑制二极管(TVS),封装为SMC(DO-214AB)。器件设计用于对抗雷击、电源浪涌及开关瞬态,保护敏感电子元件与模块。其典型钳位电压为87.1V,稳态反向工作电压(Vrwm)为54V,击穿电压典型值为66.3V,适用于需要约54V耐压的直流或脉冲保护场合。

二、主要电气参数

  • 类型:双向/单向TVS(请根据器件型号确认单/双向版本)
  • 反向工作电压 Vrwm:54V
  • 击穿电压 Vbr(典型):66.3V
  • 钳位电压 Vc(Ipp下):87.1V(Ipp=17.3A@10/1000µs)
  • 峰值脉冲功率 Ppp:1.5kW(10/1000µs波形)
  • 峰值脉冲电流 Ipp:17.3A(10/1000µs)
  • 反向漏电流 Ir:1µA(在Vrwm条件下典型值)
  • 工作温度范围:-55℃ 至 +150℃

以上参数为典型/额定值,具体选型时应参考晶导微电子正式数据手册中的最小/最大限值及测试条件。

三、封装与机械特性

SMC(DO-214AB)封装提供良好的散热能力和机械强度,适合PCBA波峰或回流焊接。建议按厂商推荐的PCB焊盘设计以获得最佳热阻和焊点可靠性,避免器件座落产生机械应力。

四、应用场景

  • 工业电源和配电系统的输入浪涌保护(例如48V/54V总线保护)
  • 通信设备、基站电源模块和交换设备的过压防护
  • 驱动器、变频器及电机控制器的瞬态抑制
  • 充电站、电动车充电系统以及储能系统局部保护
  • 任何需要在54V定值下提供高能量脉冲保护的场合

五、选型与使用建议

  • 确认系统工作电压不超过Vrwm(54V);若系统存在较高连续过压,应选择更高Vrwm等级器件或并联限制器件。
  • 钳位电压87.1V为Ipp条件下典型值,实际浪涌电流更大时钳位电压会升高,需确保下游元件能承受该电压。
  • 注意器件峰值功率1.5kW为单次脉冲能力,频繁或连续的冲击会导致热失效,应结合热设计和间歇工作条件评估寿命。
  • 对于长距离传输线或高能量雷击场景,考虑在TVS前增加熔断器或限流电阻以分担能量。

六、可靠性与焊接注意

  • 工作温度宽(-55℃~+150℃),适应苛刻环境。
  • 焊接时遵循SMC封装的回流焊温度规范,避免长时间高温暴露以防内部结构退化。
  • 装配时避免对引脚施加过大机械力,防止封装裂纹或内部焊接点损伤。

七、总结

SMCJ54A(晶导微电子)是一款适用于54V等级直流/脉冲保护的高能量TVS器件,凭借SMC封装的散热与机械优势,以及1.5kW/10/1000µs的脉冲承受能力,适用于通信、电源与工业控制等需要高可靠瞬态防护的场合。选用时应综合考虑系统工作电压、可能的浪涌电流和散热条件,并参照厂商完整数据手册完成最终设计验证。

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