WMSIC Electronic Components

ROHM RF071MM2STFTR

ModelRF071MM2STFTR
PackageSOD-123
BrandROHM
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

20 specifications

Core information

Product name
ROHM RF071MM2STFTR
Type
ROHM
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
RF071MM2STFTR
Electronic Component
1
Package
SOD-123
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0227151016
Current
1A
Diode
1
Current(Ir)
10nA@200V
(Vf)
780mV@700mA
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.

RF071MM2STFTR 产品概述

一、产品简介

ROHM(罗姆)RF071MM2STFTR 是一款独立式快恢复二极管,封装为 SOD-123,针对高效率开关电源和高速开关场合设计。该器件在中等电流、较高电压应用中表现优异,兼顾低正向压降与快速恢复特性,适用于对开关损耗与开关噪声有严格要求的系统。

二、主要性能特点

  • 正向压降 (Vf):0.78 V @ 700 mA,降低导通损耗,有利于提高系统效率并减小发热。
  • 直流反向耐压 (Vr):200 V,适合高压整流与开关应用。
  • 额定整流电流:1 A,适合中小功率整流与续流场合。
  • 反向电流 (Ir):10 nA @ 200 V,漏电流小,有利于降低静态功耗与漏电相关故障。
  • 反向恢复时间 (Trr):12 ns,典型快恢复性能,可减少开关瞬态损耗与电磁干扰。
  • 非重复峰值浪涌电流 (Ifsm):15 A,应对短时浪涌能力良好。
  • 封装:SOD-123,体积小、适配表面贴装工艺,利于高密度 PCB 布局。

三、典型应用场景

  • 开关电源(SMPS)中的整流与续流二极管(如反激、正激拓扑)。
  • 输入整流与极性保护电路。
  • LED 驱动器与消费类电源适配器。
  • 电机驱动、逆变器中对开关速度与效率有要求的整流环节。
  • 需要在较高反向电压下工作且关注开关损耗与 EMI 的场合。

四、封装与 PCB 布局建议

  • SOD-123 为常用小型表贴封装,推荐按厂方推荐的焊盘尺寸布板,保证良好焊接质量与热传导。
  • 为降低温升并提升持续工作能力,应尽量缩短导线与过孔距离、增大铜箔面积做散热。
  • 高频开关环境下走线要尽量短且粗,缩小环路面积以减少辐射和感应串扰。
  • 在高 di/dt 场合,可在器件附近增加 RC 吸收或 ZNR 抑制尖峰并配合合适的退耦电容。

五、使用注意事项

  • 额定整流电流 1 A 为器件在规定散热条件下的连续能力,实际应用中应考虑环境温度与 PCB 散热能力做适当降额。
  • 反向恢复时间 12 ns 虽较短,但在极高开关速度或大电流变换时仍可能产生开关尖峰,必要时需配合缓冲、钳位或熄灭电路。
  • 对于经常出现大浪涌的场合,应评估 Ifsm 15 A 的短时承受能力与重复冲击寿命。
  • 在高湿或腐蚀环境中注意封装可靠性与清洗工艺,避免焊后应力或化学残留引起失效。

六、选型建议与总结

RF071MM2STFTR 以 0.78 V 的低 Vf、12 ns 的快恢复时间和 200 V 耐压的组合,使其非常适合中小功率、高开关频率、要求高效率与低 EMI 的整流或续流应用。选型时请结合系统最大工作电流、开关频率、环境温度及 PCB 散热能力进行热工与电气仿真验证,必要时参照 ROHM 官方数据手册获取完整的温升曲线与推荐封装焊盘尺寸。

欲获得更详细的典型特性曲线、热阻和推荐焊盘信息,请参考 ROHM 官方数据手册或联系供应商索取 RF071MM2STFTR 的完整资料。

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