WMSIC Electronic Components

MDD DFR1M

ModelDFR1M
PackageSOD-123FL
BrandMDD
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

13 specifications

Core information

Product name
MDD DFR1M
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
DFR1M
Electronic Component
1
Package
SOD-123FL
Electronic Component
0.039g
Electronic Component
1
Electronic Component
BM0265980098
Electronic Component
Electronic Component
Electronic Component
3000

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

DFR1M 快恢复二极管产品概述

一、产品基本信息

DFR1M是MDD品牌推出的独立式快恢复二极管,采用SOD-123FL表面贴装封装,专为高频整流、开关电源等场景设计,兼顾高耐压、快恢复与小体积特性,可满足多种电子设备的可靠性需求。

二、核心电气参数详解

DFR1M的电气参数经过优化,平衡了正向导通与反向阻断性能,关键参数如下:

1. 正向导通特性

  • 正向压降(Vf):1.3V@1A(连续工作电流下的导通电压)。该参数低于普通硅整流管(通常1V以上但部分更高),可有效降低导通损耗,减少电路发热。
  • 连续整流电流:1A(额定工作电流),支持长期稳定工作在1A负载下,满足中小功率设备需求。

2. 反向阻断特性

  • 直流反向耐压(Vr):1000V(1kV),可承受高压反向偏置,适合市电整流(220VAC整流后峰值约311V,余量充足)或高压电路场景。
  • 反向漏电流(Ir):5μA@1kV,漏电流极小,反向阻断时功耗低,提升电路稳定性(尤其适合对漏电流敏感的精密电路)。
  • 反向恢复时间(Trr):500ns,属于快恢复二极管范畴(普通整流管Trr通常>1μs),可快速恢复反向阻断能力,减少开关过程中的反向恢复损耗,适配几十kHz的高频电路(如开关电源、逆变器)。

3. 浪涌承受能力

  • 非重复峰值浪涌电流(Ifsm):30A(单次脉冲),可承受瞬间大电流冲击(如开机浪涌、负载突变),提升产品抗干扰与可靠性,降低故障风险。

三、封装与物理特性

DFR1M采用SOD-123FL贴片封装,具有以下实用优势:

  • 体积小巧:封装尺寸紧凑,节省PCB布局空间,适合便携电源、小型家电等对体积敏感的设备;
  • 表面贴装:支持自动化贴装生产,降低人工成本,提升批量生产效率;
  • 引脚兼容性:符合工业标准引脚设计,可适配多种PCB layout,无需额外调整。

四、工作温度范围

DFR1M的工作结温范围为-55℃~+150℃,覆盖宽温环境:

  • 低温端:-55℃可适应寒冷地区、低温存储或户外设备场景;
  • 高温端:+150℃可承受电路长期工作产生的热量,在额定参数内无需额外散热设计(如小功率开关电源)。
    该宽温特性使其可应用于工业控制、车载电子(部分场景)等 harsh 环境。

五、典型应用场景

结合DFR1M的参数特性,其典型应用包括:

  1. 开关电源:AC-DC适配器、DC-DC转换器的高频整流,利用快恢复特性降低开关损耗;
  2. 逆变器:太阳能逆变器、UPS电源的逆变电路整流,1kV耐压满足高压需求;
  3. 工业控制电路:PLC、传感器接口的整流与续流,宽温特性适应工业现场环境;
  4. 小型家电:电磁炉、小家电的电源整流,小封装易集成;
  5. 通信电源:基站电源、路由器电源的低压差整流,低漏电流提升效率。

六、产品优势总结

DFR1M的核心优势可概括为“快、稳、小、宽”:

  • 快:500ns反向恢复时间,高频性能优异,适配高频电路;
  • 稳:1kV耐压+5μA低漏流,反向阻断可靠,减少电路故障;
  • 小:SOD-123FL小封装,适合小型化设计,节省空间;
  • 宽:-55~150℃宽温范围,适应极端环境,应用场景广泛。

该产品通过参数优化平衡了性能与成本,是中小功率高频整流场景的高性价比选择。

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