WMSIC Electronic Components

ON MBR2H100SFT3G

ModelMBR2H100SFT3G
PackageSOD-123
BrandON
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
ON MBR2H100SFT3G
Type
ON
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ON
Electronic Component
MBR2H100SFT3G
Electronic Component
1
Package
SOD-123
Electronic Component
Schottky Diode
Electronic Component
0.043g
Electronic Component
1
Electronic Component
BM0227638752
Current
2A
Diode
1
Current(Ir)
40uA@100V
(Vf)
840mV@2A
Electronic Component
65℃~+175℃
Electronic Component
Electronic Component

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

MBR2H100SFT3G 产品概述

一、产品简介

MBR2H100SFT3G 是安森美(ON Semiconductor)生产的一款肖特基整流二极管,额定直流整流电流为 2A,反向耐压 100V,典型正向压降为 840mV(在 2A 条件下)。器件采用 SOD-123 小型贴片封装,适合空间受限且要求低压降、快恢复性能的电源与保护电路应用。

二、主要电气参数

  • 直流整流电流(IF):2A(连续)
  • 正向压降(Vf):840mV @ 2A(典型)
  • 直流反向耐压(VR):100V
  • 反向漏电流(IR):40µA @ 100V
  • 非重复峰值浪涌电流(IFSM):50A(单次脉冲抗冲击能力)
  • 工作结温范围(Tj):-65 ℃ ~ +175 ℃

在 2A 工作条件下,器件的前向功耗约为 Vf×IF ≈ 0.84V×2A ≈ 1.68W;在 100V 反向偏压下的漏电功耗约为 100V×40µA ≈ 4mW,漏电对总体损耗影响微小。

三、封装与机械特性

SOD-123 小封装具有体积小、适合高密度贴片组装的特点。封装便于高速回流焊工艺下的批量生产,器件外形通常带有极性标识,便于在 PCB 布局和装配过程中判别极性。由于封装体积有限,器件热阻相对较高,需在 PCB 设计中注意散热路径。

四、热与可靠性考虑

  • 封装限制了器件的散热能力,长时间 2A 工作时功耗约 1.68W,需评估 PCB 铜箔面积和热过孔以保证结温在额定范围内。
  • IFSM 为 50A,表示对短时浪涌有良好承受能力,但为非重复峰值,重复或长脉冲浪涌需参照厂商完整浪涌曲线并作保护设计。
  • 宽工作结温(-65~+175℃)利于在汽车级与工业级环境中使用,但实际可靠性仍依赖于良好的热管理与合适的工作点选择。

五、典型应用

  • 开关电源次级整流(低压、大电流场合)
  • 逆电流保护与电源 OR-ing(降低正向压降以提高效率)
  • 电池供电系统、便携设备的低损耗整流
  • 电机驱动和继电器回路的续流二极管(需确认峰值与平均电流条件)

六、使用建议与注意事项

  • 在设计 PCB 时,增大二极管附近的铜箔面积并采用热过孔以改善散热;必要时并联多个器件以降低单器件负担。
  • 注意 IFSM 的脉冲宽度和频率限制,避免重复性超出器件允许的浪涌能量。
  • 若工作环境常出现较高反向电压和温度,应重点审查反向漏电随温度上升的行为,必要时选择更低漏电的型号或增加冷却手段。
  • SOD-123 为小型表贴封装,装配时注意回流曲线与焊接工艺以避免热损伤。

七、选型参考提示

若系统对效率和散热尤为敏感,可比较同类 2A、100V 肖特基器件的 Vf/IF 曲线与热阻参数;若需更高浪涌能力或更低漏电,可考虑更大封装或不同型号。对于汽车级应用,还应确认器件的 AEC-Q 等级或厂商的质量认证。

八、总结

MBR2H100SFT3G 在保持较低正向压降(0.84V@2A)与较低反向漏电(40µA@100V)的同时,提供 100V 的耐压和 50A 的非重复浪涌能力,适合用于空间受限且要求低损耗的整流与保护应用。设计时应重视热管理与浪涌能量限制,以保障长期可靠性。

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