WMSIC Electronic Components

ROHM RBR3MM60ATFTR

ModelRBR3MM60ATFTR
PackageSOD-123FL
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

19 specifications

Core information

Product name
ROHM RBR3MM60ATFTR
Type
ROHM
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
RBR3MM60ATFTR
Electronic Component
1
Package
SOD-123FL
Electronic Component
Schottky Diode
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0227176247
Current
3A
Diode
Electronic Component
Current(Ir)
100uA@60V
(Vf)
660mV@3A
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
60V

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

RBR3MM60ATFTR 产品概述

一、产品简介

RBR3MM60ATFTR 是 ROHM(罗姆)公司推出的一款独立式肖特基整流二极管,封装为 SOD-123FL。该器件侧重于低正向压降与中等电压耐受能力的组合,适合在需要高效率整流与快速恢复的电源与保护电路中使用。器件体积小、响应快,适合空间受限且对功率损耗有要求的应用环境。

二、主要参数

  • 器件类型:肖特基二极管(独立式)
  • 正向压降(Vf):660 mV @ IF = 3 A
  • 直流反向耐压(Vr):60 V
  • 整流电流(连续):3 A
  • 反向电流(Ir):100 μA @ Vr = 60 V
  • 非重复峰值冲击电流(Ifsm):30 A
  • 封装:SOD-123FL
  • 品牌:ROHM(罗姆)

以上参数为器件特性中关键的电气指标,选型时应以实际工作电流、电压和温升条件为准并参考原厂完整数据手册。

三、主要特性与优势

  • 低正向压降:660 mV(3 A)相比通用硅整流二极管有明显的导通损耗优势,有利于降低整流过程中的功率损耗与发热,提高整机效率。
  • 快速响应:肖特基结构本征少量子恢复,适合开关电源、DC-DC 转换器等快速变化电流场合。
  • 适中耐压:60 V 的反向耐压对多数 12 V/24 V 车载与工业电源系统已足够,但在高压场合需注意选择更高耐压型号。
  • 峰值冲击能力:30 A 的非重复峰值浪涌电流允许器件承受短时启动或浪涌电流,增加系统的抗冲击能力。
  • 紧凑封装:SOD-123FL 提供较小的占板面积和低高度特性,便于高密度布板与轻薄化设计。

四、典型应用场景

  • 开关电源输出整流(低压大电流场合)
  • DC-DC 降压模块的自由轮恢复与二次整流
  • 直流电源保护(反向电源保护、OR-ing 电路)
  • 车载电子(12V/24V 系统)的整流与保护(需考虑瞬态电压抑制)
  • 充电器、电源适配器与工业控制电源的整流与续流

五、封装与热管理要点

  • 封装为 SOD-123FL,具有小型化和良好的焊接可靠性。装配时应遵循 ROHM 给出的推荐 PCB 焊盘尺寸与回流温度曲线,避免过热或引脚应力导致焊点失效。
  • 虽然器件正向压降较低,但在连续 3 A 工作条件下仍有显著功耗(P ≈ Vf × IF),需通过铜箔加厚、散热面或靠近散热体布线来改善热阻,保证结温在器件允许范围内。
  • 在高温环境或高电流重复工作下,反向漏电流会随温度上升显著增加,应留有热裕度并在热仿真中验证结温。

六、选型与使用建议

  • 若工作电流接近 3 A,优先关注实际 PCB 热阻与周围器件的热耦合,必要时考虑并联多只器件或选择更低 Vf/更大封装的型号。
  • 对于存在高压瞬态(如汽车启动浪涌、感性负载开断等)的应用,建议在器件两端增加适当的抑制元件(TVS)、RC 吸收或选用更高 Vr 等级的二极管以提高系统可靠性。
  • 关注反向漏电随温度上升的变化:在高温场合应核算漏电导致的静态损耗与发热。
  • 评估 Ifsm 指标是否满足系统的启动或短路浪涌需求,若浪涌持续时间较长需采用额外保护或选择更高冲击能力器件。

七、可靠性与注意事项

  • 器件寿命与可靠性与工作结温直接相关。设计时确保在最大环境温度和最大负载下结温不过高,避免热失效。
  • 焊接和回流过程要严格按照厂方资料执行,以防封装应力或材料退化导致可靠性下降。
  • 在多器件并联使用时应采取电流均流措施(串联小阻值或温度匹配),避免单只器件过载。

总结:RBR3MM60ATFTR 是一款面向中等电流、低压降需求的肖特基整流二极管,适合需要高效率整流和空间受限的电源及保护电路。选型时需结合实际电流、工作温度和浪涌条件进行热设计与保护电路配合,以确保长期可靠运行。若需更详细的电气特性、热阻和封装尺寸,请参阅 ROHM 的原厂数据手册。

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