WMSIC Electronic Components

FUXINSEMI M7A

ModelM7A
PackageDO-214AC(SMA)
BrandFUXINSEMI
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
FUXINSEMI M7A
Type
FUXINSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
M7A
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
General Purpose Diode
Electronic Component
0.097g
Electronic Component
1
Electronic Component
BM0264480207
Current
1A
Diode
1
Current(Ir)
5uA@1kV
(Vf)
1.1V@1A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

M7A 通用高压整流二极管 产品概述

一、产品简介

M7A 是一款面向高压整流和通用功率整流场景的独立式二极管,由 FUXINSEMI(富芯森美)生产。器件采用 DO-214AC(SMA)封装,体积小巧、可靠性高,适用于空间受限且需承受高反向电压的电源和电子设备中。该器件在 1A 工作电流条件下具有较低的正向压降与良好的反向耐压性能,兼顾性能与成本,是传统整流与保护电路的成熟选择。

二、主要电气参数

  • 二极管配置:1个独立式
  • 正向压降 (Vf):1.1 V @ IF = 1 A
  • 直流反向耐压 (Vr):1000 V
  • 整流电流(平均):1 A
  • 反向电流 (Ir):5 μA @ VR = 1 kV
  • 非重复峰值浪涌电流 (Ifsm):30 A
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 封装:DO-214AC (SMA)
  • 品牌:FUXINSEMI(富芯森美)

以上参数在典型测试条件下给出,设计电路时须参考器件数据手册中的详细限制与曲线图。

三、特性与优势

  • 高反向耐压:1000 V 的直流耐压使 M7A 能够胜任高压整流、飞弧抑制与反向保护场合。
  • 低正向压降:在 1 A 条件下约 1.1 V 的 Vf,有助于降低整流损耗与提高转换效率。
  • 低反向漏电:5 μA(1 kV) 的反向电流在高压条件下仍保持较低漏电,利于高阻抗与高压回路的可靠性。
  • 良好的浪涌承受能力:30 A 非重复峰值浪涌电流可满足开机冲击或瞬态浪涌的短时承载要求。
  • 宽温度范围:-55 ℃ 至 +150 ℃ 的工作结温适配工业级及更苛刻温度环境。

四、典型应用场景

  • 开关电源高压整流或次级回路整流
  • 高频逆变/整流模块中的高压保护
  • 电动工具、电源适配器、充电器的整流与逆向保护
  • 工业控制设备、测量仪器中需要高压承受的线路
  • 光伏逆变器、能量回收与再生制动的高压保护单元(需结合系统设计)

五、封装与热管理建议

M7A 采用 DO-214AC(SMA)封装,便于自动化贴装与回流焊接。封装体积小,但在连续 1 A 以上或频繁浪涌工况下仍需重视散热:

  • PCB 布局:在二极管焊盘周围留足够的铜箔面积作为散热窗,适当增加热沉或多层过孔以导热。
  • 热设计:尽量避免长期在高结温附近工作,遵循器件最大结温限定并进行必要的电流/温度降额。
  • 焊接工艺:推荐采用符合 SMA 封装的回流焊工艺,避免过高的峰值温度和长时间加热,以防内部应力和性能退化。

六、使用注意事项与可靠性

  • 反向漏电与温度关联显著:反向电流会随温度上升而增大,高温环境下需评估漏电对系统的影响。
  • 浪涌与重复冲击:30 A 为非重复峰值浪涌能力,若系统存在重复冲击或高能脉冲,应采取限流、吸收或并联更高能力器件等措施。
  • 极性标识:安装时注意二极管极性,错误安装可能导致电路损坏。
  • 储存与防静电:遵循常规半导体储运规范,避免潮湿环境与静电损伤。
  • 可靠性测试:在关键应用中,建议按系统工况做加速寿命验证(高温老化、热循环、浪涌耐受等)。

七、包装与订购信息

M7A 以 DO-214AC(SMA)封装形式供应,适用于自动化贴装与批量生产。订购时请注明品牌(FUXINSEMI)、型号(M7A)、封装(SMA/DO-214AC)与数量,便于准确交付。对于需要特殊出货检验或认证的项目,可在采购前与供应商确认相关品质文件与测试报告。

总结:M7A 为一款高压、低漏电、低正向压降的通用整流二极管,适合多种工业与消费类电源应用。合理的热设计与正确的选型配合可保证长期稳定运行。若需更详细的电气曲线、极限条件或封装尺寸图,请参阅富芯森美提供的完整数据手册或联系当地技术支持。

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