WMSIC Electronic Components

MDD SS24F

ModelSS24F
PackageSMAF
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

19 specifications

Core information

Product name
MDD SS24F
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
SS24F
Electronic Component
1
Package
SMAF
Electronic Component
Schottky Diode
Electronic Component
0.056g
Electronic Component
1
Electronic Component
BM0227798510
Current
2A
Diode
Electronic Component
Current(Ir)
500uA@40V
(Vf)
550mV@2A
Electronic Component
55℃~+125℃
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.

SS24F 肖特基二极管(MDD)产品概述

一、产品简介

SS24F 为 MDD 品牌的一款独立式肖特基二极管,封装为 SMAF,面向通用整流与快速切换场景。该器件以低正向压降和较高整流电流为特点,适合在中小功率电源转换、电路保护与二极管并联场合使用。工作结温范围宽(-55℃ 至 +125℃),适应工业级温度环境。

二、主要参数与特点

  • 二极管类型:独立式肖特基二极管(单只器件)
  • 正向压降(Vf):约 0.55 V @ 2 A(低压降,有利于降低导通损耗)
  • 直流反向耐压(Vr):40 V(适合 12 V~36 V 级别的电源系统)
  • 整流电流(If):2 A(持续整流能力)
  • 反向电流(Ir):500 μA @ 40 V(反向漏电随温度上升需注意)
  • 工作结温范围:-55 ℃ ~ +125 ℃(满足大多数工业应用的温度要求)
  • 封装:SMAF(利于表面贴装、焊接与散热)
  • 主要优势:低 Vf、快速响应、体积小、适合高频整流场合

三、典型应用场景

  • 开关电源(SMPS)输出整流与同步整流替代
  • DC-DC 转换器输出整流与二次侧整流
  • 反向保护、负载断电保护(OR-ing 电路)
  • 电池充放电路径控制与电源切换
  • 电机驱动与自由轮二极管(低压差下降有助于降低热损耗)
  • 汽车电子与工业控制电源(考虑到 Vr 和工作温度)

四、热管理与封装说明

SMAF 封装有利于在 PCB 上实现良好的热扩散,但在长时间 2 A 负载下仍需关注热设计。建议:

  • 在 PCB 布局时为二极管焊盘预留较大铜箔,使用多层铜平面或热过孔增强散热;
  • 在可能的场合与外部散热片或靠近散热元件布局组合使用;
  • 注意反向漏电 Ir 随温度上升显著增加的特性,高温环境下应预留安全裕量或选择并联/降额使用。

五、使用建议与注意事项

  • 由于肖特基二极管的反向漏电随温度升高而增长,应用在高温或持续高压反向工况时需评估漏电对系统的影响;
  • 在突发浪涌电流(如大电容充电)场合,注意冲击电流能力,必要时采用限流或使用更高浪涌能能力的器件;
  • 焊接与回流工艺应遵循 MDD 或通用 SMAF 封装的回流温度曲线,避免超温损伤封装或改变器件可靠性;
  • 若用于精密电源或对反向漏电有严格限制的场合,可考虑并联低 Vf 但更低漏电的器件或采用主动同步整流方案。

六、采购与替代注意

  • 型号标识:SS24F(请在采购时核对完整型号与批次,确认为 MDD 品牌及 SMAF 封装);
  • 若需更高耐压或更低漏电特性,可考虑同系列或其它厂商的更高 Vr 或低 Ir 器件;若需更低 Vf 可评估额定电流更高的肖特基或同步整流方案;
  • 量产时建议索取器件数据手册(Datasheet)与可靠性报告(如需通过汽车/工业级认证),并进行必要的样机验证。

总结:SS24F(MDD,SMAF 封装)以 0.55 V@2 A 的低正向压降、40 V 的反向耐压和工业级工作温度,适合在中小功率整流与电源保护应用中替代传统整流二极管,以降低导通损耗与提高系统转换效率。但在高温与高反向电压场景下需注意漏电与热管理。

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