WMSIC Electronic Components

FOSAN RS1M

ModelRS1M
PackageSMA
BrandFOSAN
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
FOSAN RS1M
Type
FOSAN
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FOSAN
Electronic Component
RS1M
Electronic Component
1
Package
SMA
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.12g
Electronic Component
1
Electronic Component
BM0264881632
Current
1A
Current(Ir)
5uA
(Vf)
1.3V@1A
Electronic Component
65℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000
Voltage Rating(Vr)
1kV

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

RS1M快恢复/高效率二极管产品概述

一、产品核心定位

RS1M是FOSAN(富信)推出的快恢复/高效率整流二极管,针对中低压高频整流场景设计,兼顾效率与成本控制,可替代部分普通硅整流管及入门级快恢复器件,适用于小型化电子设备的电源电路、驱动电路等。其核心价值在于通过优化反向恢复特性,解决普通整流管开关损耗大的问题,同时保持适中的压降与成本,满足多数民用及工业低功率场景需求。

二、关键电气参数详解

该器件的核心参数直接决定应用边界,需重点关注以下指标:

  1. 正向压降(Vf):1.3V@1A(额定电流下),属于快恢复二极管的典型压降范围——相比普通硅整流管(如1N4007约1.1V)略高,但因反向恢复特性更优,高频场景下整体效率更突出;
  2. 直流反向耐压(Vr):1kV,满足大部分中高压整流需求(如220V交流整流后峰值约310V,留有充足安全裕量);
  3. 额定整流电流(If):1A(直流),可稳定承载1A连续电流,短时间浪涌电流(如开机瞬间)可承受更高值(需参考 datasheet 浪涌参数);
  4. 反向恢复时间(Trr):500ns,是区分快恢复与普通整流管的核心指标(普通管Trr为μs级),大幅降低开关损耗,适合100kHz以下高频切换场景;
  5. 工作结温范围:-65℃~+150℃,宽温特性使其可在极端环境(如工业控制、车载辅助电路)中稳定工作。

三、封装形式与典型应用场景

RS1M采用SMA封装(DO-214AC),为贴片式小型封装,尺寸紧凑(约2.2mm×3.5mm),适合高密度PCB设计,常见应用场景包括:

  • 开关电源输出整流:手机充电器、笔记本适配器的次级整流电路;
  • LED驱动电源:小功率LED模组(如台灯、广告灯)的整流及续流;
  • DC-DC转换器:升压/降压电路中的续流二极管(如5V转12V电路);
  • 小型家电控制:电磁炉、豆浆机、加湿器的电源整流模块;
  • 工业控制电路:低功率PLC、传感器模块的辅助电源部分。

四、性能优势与竞品对比

相比同类器件,RS1M的优势体现在平衡型设计:

  • 与普通硅整流管(如1N4007):反向恢复时间缩短90%以上,开关损耗降低,适合高频场景(如100kHz以内的开关电源);
  • 与超快恢复二极管(如FR107):价格更具竞争力,压降略低(FR107约1.4V@1A),适合对频率要求不极高的场景;
  • 与同参数快恢复器件:FOSAN品牌的一致性更好,结温范围宽,经过高温存储、温度循环等可靠性测试,满足工业级标准。

五、应用注意事项

为确保器件稳定工作,需注意以下细节:

  1. 焊接温度:SMA封装回流焊峰值温度不超过260℃,焊接时间≤30s;手工焊接温度≤350℃,时间≤3s;
  2. 电流限制:连续工作电流不超过1A,避免长期过载(如持续1.2A以上)导致结温过高;
  3. 散热设计:若工作在高结温场景(如环境温度40℃以上,电流接近1A),需增加PCB铜箔面积(建议≥10mm²)或小型散热片辅助散热;
  4. 反向电压:避免超过1kV的直流反向电压,交流峰值需按√2折算后留足裕量(如交流输入380V,峰值约537V,需确认电路中无过压)。

综上,RS1M是一款性价比突出的快恢复二极管,适用于多数中低压、低功率高频整流场景,其宽温特性与小型封装进一步拓展了应用边界。

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