WMSIC Electronic Components

Jingdao Microelectronics DS14W

ModelDS14W
PackageSOD-123F
BrandElectronic
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
Electronic DS14W
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
DS14W
Electronic Component
1
Package
SOD-123F
Electronic Component
Schottky Diode
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0226518767
Current
1A
Diode
1
Current(Ir)
300uA@40V
(Vf)
550mV@1A
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.

DS14W 肖特基二极管产品概述(晶导微电子)

一、产品简介

DS14W 是晶导微电子推出的一款面向低压整流与保护应用的肖特基二极管,采用 SOD-123F 表面贴装封装。器件针对空间受限、散热受限的中小功率设计场景,提供低正向压降、良好的浪涌能力与宽工作结温范围,适合开关电源、整流、反向保护等应用。

二、主要电气参数(典型/额定)

  • 正向压降 Vf:0.55 V @ 1 A(典型值,测试条件为 1 A 正向电流)
  • 直流整流电流(Io):1 A
  • 非重复峰值浪涌电流 Ifsm:30 A(单次浪涌能力)
  • 直流反向耐压 Vr:40 V
  • 反向电流 Ir:300 μA @ 40 V(在标准测试条件下)
  • 工作结温范围:-55 ℃ ~ +125 ℃
  • 封装:SOD-123F(表面贴装)

以上参数为器件规格的关键指标,在电路设计与热设计时应作为基准。

三、产品特性与优势

  • 低正向压降:0.55 V 的典型 Vf 在 1 A 工作点下可显著降低整流损耗,提高效率并减小发热。
  • 良好浪涌能力:30 A 的非重复峰值浪涌能力使其能承受开机或短时过载产生的瞬态冲击。
  • 小型封装:SOD-123F 有利于高密度 PCB 布局,适合便携或空间受限的终端设备。
  • 宽温区可靠性:-55 ℃ 至 +125 ℃ 的结温范围满足大多数工业与汽车级温度需求(请参考实际使用环境下的功率热耗允差)。

四、典型应用场景

  • 开关电源次级整流与快速整流
  • DC-DC 转换器输出整流与续流回路
  • 电池充放电电路中的反向极性保护
  • 充电器、适配器及消费电子的低压整流
  • 高频开关场合需要低反向恢复的场合(肖特基本征使其反向恢复性能优于普通二极管)

五、设计与使用注意事项

  • 热管理:尽管 SOD-123F 体积小,但工作在 1 A 及靠近最大额定时会产生显著热量,建议在 PCB 设计中采用较大铜箔面积并适当布置热铜通孔以提升散热效率。
  • 反向泄漏随温度上升:Ir 在 40 V 下为 300 μA,但在高温条件下会显著增加,应在高温工况下评估泄漏对电路的影响。
  • 浪涌与重复应力:Ifsm 为非重复峰值浪涌能力,不能作为重复冲击或长时间过流的工作指标,设计中需留有裕量或添加保护电路。
  • 焊接工艺:建议采用标准回流焊温度曲线进行焊接,避免超过器件最大结温,防止机械与热应力损伤。

六、可靠性与选型建议

在选型时,除了比较 Vf、Vr、Ir 等电气参数外,应结合实际应用的平均电流、峰值电流、散热条件与温度环境来进行热仿真与验证。对于对效率敏感或高温运行的系统,推荐在设计阶段预留额定电流的裕量,并在 PCB 布局上优先考虑散热路径。

七、结论

DS14W(晶导微电子,SOD-123F)以其低正向压降(0.55 V@1 A)、1 A 整流能力、30 A 瞬态浪涌和 40 V 反向耐压的组合,成为中小功率整流与保护场景的性价比之选。合理的热设计与对反向泄漏随温度上升的评估,可以充分发挥其在高密度、低损耗应用中的优势。若需进一步的封装尺寸、PCB 推荐焊盘或完整的电气特性曲线,请参阅晶导微电子的详细规格书。

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