WMSIC Electronic Components

Jingdao Microelectronics RS2MF

ModelRS2MF
PackageSMAF
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 Option 131491

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
Electronic RS2MF
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
RS2MF
Electronic Component
1
Package
SMAF
Electronic Component
0.056g
Electronic Component
1
Electronic Component
BM0265794246
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.

RS2MF 快恢复二极管产品概述

RS2MF是晶导微电子推出的独立式快恢复/高效率二极管,采用SMAF表面贴装封装,针对中功率电路的「低损耗、快速开关、高可靠性」需求设计,广泛应用于开关电源、LED驱动等领域。以下从核心参数、封装特性、应用场景等维度展开详细概述。

一、产品核心定位与技术优势

RS2MF定位于中功率高频整流/续流场景,核心优势集中在3个关键维度:

  1. 低导通损耗:正向压降1.3V@2A,相比传统硅整流二极管(2A时压降通常≥1.5V),可降低约13%的导通功率损耗,提升电源转换效率;
  2. 快速开关特性:反向恢复时间500ns,远快于普通整流二极管(典型值≥2μs),能有效减少开关过程中的能量损耗,适配高频工作环境;
  3. 高可靠性:1kV反向耐压、50A非重复浪涌电流,结合-55℃~+150℃宽结温范围,可承受电路突发冲击,长期工作稳定性强。

二、关键电气参数深度解析

RS2MF的参数设计精准匹配中功率电路需求,核心参数的实际意义如下:

1. 正向特性:额定电流与压降

  • 额定直流整流电流(Io):2A——满足多数小功率开关电源、LED驱动的电流需求;
  • 正向压降(Vf):1.3V@2A——单管导通功率损耗约2.6W(P=I×Vf),低于同等级竞品,可降低电路温升,减少散热设计成本。

2. 反向特性:耐压与漏电流

  • 直流反向耐压(Vr):1kV——可覆盖220V交流整流(峰值约311V)或更高电压等级的电路,满足家电、工业电源的安全需求;
  • 反向漏电流(Ir):5μA@1kV——反向截止时漏电流极小,可降低待机功耗,提升电路绝缘性能。

3. 恢复特性:快恢复适配高频

反向恢复时间(Trr):500ns——二极管从导通到截止的过渡时间越短,开关损耗越小。该参数使RS2MF适合高频开关电路(如开关电源次级整流、DC-DC续流),避免因恢复时间过长导致的效率下降与电磁干扰(EMI)问题。

4. 浪涌与结温:抗冲击与宽温

  • 非重复峰值浪涌电流(Ifsm):50A——可承受开机瞬间、负载突变等突发电流冲击,提升电路抗干扰能力;
  • 工作结温范围:-55℃~+150℃——覆盖工业级温度要求,可在极端环境(如高温车间、户外低温场景)稳定工作。

三、SMAF封装设计与可靠性

RS2MF采用SMAF表面贴装封装,属于小型化封装类型,适配自动化生产与紧凑电路设计:

  1. 体积紧凑:符合SMA系列封装标准,引脚间距(约2.54mm)与尺寸适配主流贴装设备,适合便携式充电器、微型LED驱动等小型化产品;
  2. 散热优化:封装结构优化了热传导路径,可将工作热量快速传递至PCB板,降低结温积累;
  3. 焊接可靠:引脚采用镀锡工艺,焊接性良好,减少虚焊风险,提升量产良率;
  4. 机械稳定:封装材料耐温、耐振动,可承受焊接高温冲击与产品使用中的机械应力,适合工业与消费电子的严苛环境。

四、典型应用场景

RS2MF的参数特性使其适配多种中功率电路,核心应用包括:

  1. 开关电源:AC-DC电源次级整流、DC-DC变换器续流二极管——利用快恢复特性减少开关损耗,提升电源效率;
  2. LED驱动电源:小功率LED驱动整流/续流——低损耗可降低驱动电路功耗,宽温范围适合户外LED照明(路灯、景观灯);
  3. 小家电电路:电磁炉、电压力锅、豆浆机的电源整流模块——50A浪涌电流可承受开机冲击,1kV耐压保障安全;
  4. 工业控制:低功率工业控制器电源、传感器信号调理电路——宽温范围与高可靠性满足工业环境稳定性要求。

五、选型与替换注意事项

  1. 封装匹配:需确认PCB封装为SMAF,若采用其他封装(如SMA),需验证引脚尺寸与焊接兼容性;
  2. 参数匹配:替换时需确保「反向耐压≥1kV、整流电流≥2A、Trr≤500ns」,浪涌要求高的场景需关注Ifsm≥50A;
  3. 品牌兼容性:与部分竞品(如某品牌US2M、RS2M)参数兼容,但需验证实际电路中的性能一致性。

RS2MF作为晶导微电子的中功率快恢复二极管,凭借低损耗、快恢复、高可靠性与小型化封装,成为开关电源、LED驱动等领域的实用选型,可满足多数中功率电路的设计需求。

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