WMSIC Electronic Components

MDD DSK120-K120

ModelDSK120-K120
PackageSOD-123FL
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MDD DSK120-K120
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
DSK120-K120
Electronic Component
1
Package
SOD-123FL
Electronic Component
Schottky Diode
Electronic Component
0g
Electronic Component
1
Electronic Component
BM0226510944
Current
1A
Diode
Electronic Component
Current(Ir)
100uA@200V
(Vf)
900mV@1A
Electronic Component
55℃~+150℃
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.

DSK120-K120 产品概述

一、产品简介

DSK120-K120 是 MDD 推出的一款独立式肖特基二极管,采用 SOD-123FL 小尺寸封装,面向常规功率整流与保护场景。该器件在 1A 电流条件下正向压降典型约 0.90V(1A),在高电压应用中仍能保持较低的正向损耗,直流反向耐压达 200V,适用于中高压直流回路的快速整流与反向保护。

二、主要电气参数

  • 型号:DSK120-K120(品牌:MDD)
  • 封装:SOD-123FL(表面贴装,低厚度)
  • 正向压降(Vf):约 0.90V @ 1A(典型值,应用中请按实际样品确认)
  • 直流反向耐压(Vr):200V
  • 最大整流电流:1A(连续)
  • 反向漏电流(Ir):100µA @ 200V(室温典型)
  • 工作结温范围:-55℃ 至 +150℃

三、产品特性与优势

  • 低正向压降:在同等级别的整流器件中具有优势,降低导通损耗,有利于提高效率与减少发热。
  • 高耐压设计:200V 的反向耐压使其可用于中高压供电系统、开关电源输入端等场景。
  • 小型封装:SOD-123FL 占板面积小,便于高密度贴装与紧凑型电源设计。
  • 宽温度适应:-55℃~+150℃ 的结温范围提升了可靠性与环境适应能力。
  • 快速响应:肖特基势垒特性保证在开关瞬态中有良好的恢复性能,适合高频应用。

四、典型应用场景

  • 开关电源(SMPS)输出整流、续流二极管
  • 反向极性保护与防反充电路
  • 直流-直流变换器(降压/升压)的整流与夹位保护
  • 电池充放电路径与便携设备电源管理
  • 通信设备、工业控制设备的电源保护与整流

五、封装与布局建议

  • 焊盘设计:采用推荐的 SOD-123FL 焊盘尺寸,保证焊点湿润与良好热导。为降低结温,应尽量增大焊盘铜箔面积并使用过孔导热到内层/底层散热。
  • 布局注意:将二极管与相关电感、电容尽量靠近放置以缩短回流环路,减小寄生电感与电磁干扰。
  • 回流焊工艺:遵循厂商推荐的回流温度曲线,避免过高温度或长时间过热,确保焊接可靠性。

六、热管理与工作限制

  • 连续使用时按 1A 等级设计,并考虑环境温度、散热条件进行降额设计;高温会显著增加反向漏电流,影响性能。
  • 在脉冲或短时过流场合,请参考峰值电流与热阻参数(以样片测试数据为准),避免因瞬态过流导致结温超限。

七、可靠性与选型提示

  • 反向漏电流随温度上升显著增加,若系统对漏电流敏感(例如高阻测量或漏电保护),需在选型时保留足够裕度或考虑更低漏电的方案。
  • 200V 级肖特基在高压下所表现出的正向压降可能高于低压肖特基,设计时应基于实际样品测试的 Vf 曲线做损耗评估。
  • 建议在量产前进行完整的环境应力测试(高温、高湿、热循环)与电气参数确认。

八、订购与包装

  • 品牌:MDD,型号:DSK120-K120,封装:SOD-123FL。常见包装方式为卷带(tape-and-reel)或小托盘供选,具体包装与最小起订量请联系供应商或产品经销处确认。

如需更详细的电气特性曲线、封装尺寸图、焊盘推荐或可靠性测试报告,可提供样品型号以获取厂商完整数据手册和应用资料。

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