WMSIC Electronic Components

FUXINSEMI SS34F

ModelSS34F
PackageSMAF(DO-214AD)
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 SS34F
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
SS34F
Electronic Component
1
Package
SMAF(DO-214AD)
Electronic Component
Schottky Diode
Electronic Component
0.054g
Electronic Component
1
Electronic Component
BM0265133019
Current
3A
Diode
Electronic Component
Current(Ir)
500nA
(Vf)
550mV@3A
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
40V

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

SS34F(富芯森美)产品概述

一、产品简介

SS34F 为富芯森美(FUXINSEMI)出品的一款独立式肖特基整流二极管,封装为 SMAF(DO-214AD)。器件为离散封装,面向中低压、大电流整流和保护场景,额定整流电流为 3A,直流反向耐压 40V,典型正向压降 Vf = 0.55V(在 3A 条件下),反向漏电流为 500nA(典型)。该产品以低正向压降和快速恢复特性为核心,适合功率转换与整流应用。

二、主要性能特点

  • 低正向压降:Vf≈0.55V @ 3A,减小导通损耗,提高转换效率。
  • 中等耐压能力:Vr = 40V,满足大多数 12V/24V 工业与车规外围电路需求。
  • 额定整流电流:3A 连续整流能力,适用中功率轨道。
  • 低反向漏电:Ir ≈ 500nA,降低待机与泄漏损耗,有利于低功耗系统。
  • 封装可靠:SMAF(DO-214AD)具有良好散热与焊接兼容性,便于自动化贴装或手工焊接。
  • 独立器件:便于并联、替换和维修,在功率板级设计中应用灵活。

三、典型应用场景

  • 开关电源整流二极管(输出整流或同步整流备选)。
  • DC-DC 转换器输出整流或输入极性保护。
  • 逆变器/电机驱动中的续流二极管或保护二极管。
  • 汽车/工业电源系统的反向极性保护与浪涌吸收。
  • LED 驱动、电池管理与充电系统的整流与保护组件。

四、封装与可靠性要点

SMAF(DO-214AD)封装提供较好的功率耗散路径但仍受限于铜箔面积与散热设计。建议在 PCB 布局时:

  • 将器件靠近热源或负载放置,采用较宽的焊盘和多层铜平面以提高散热。
  • 对于长时间高电流工作,考虑在器件下方或附近增加散热铜箔或散热孔。
  • 注意极性标识(阴阳极),避免焊接错误造成损坏。
    器件应按厂商推荐的焊接工艺与温度曲线进行回流焊,以保证可靠性与一致性。储存与装配过程中应注意防潮、防静电。

五、工程选型与使用建议

  • 评估热阻与功耗:按实际工作电流计算 Vf×I 损耗,并留有余量进行散热设计与降额使用。
  • 并联使用需注意电流分配:若需提高电流容量,采用匹配相同型号并注意均流措施。
  • 对于需要极低反向恢复或高频切换的场合,肖特基二极管通常优于普通整流二极管,但仍需验证在目标频率下的温升与效率。
  • 在敏感电路中使用时,关注反向漏电随温度上升而增大的特性,并据此调整热设计与保护策略。
  • 设计评审时建议参考富芯森美提供的完整数据手册和典型曲线,以获得精确的温度、频率与电流下的参数。

六、订购与技术支持

型号:SS34F;品牌:FUXINSEMI(富芯森美);封装:SMAF(DO-214AD)。本器件适用于量产与工程样片测试,常见供应形式可咨询厂商或代理商获取当前包装与最低订购量。选型与批量采购前,建议向厂商索取最新版数据手册、可靠性报告和 RoHS /质量认证文件,以确保满足具体应用的法规和可靠性需求。

如需更详细的典型曲线、温度特性或封装资料,可联系富芯森美技术支持或索取完整数据手册以开展电路仿真与热设计验证。

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