WMSIC Electronic Components

YANGJIE 1N4148WL2

Model1N4148WL2
PackageDFN1006-2(SOD-882)
BrandYANGJIE
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

13 specifications

Core information

Product name
YANGJIE 1N4148WL2
Type
DFN1006-2(SOD-882)
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
1N4148WL2
Electronic Component
1
Package
DFN1006-2(SOD-882)
Electronic Component
0.013g
Electronic Component
1
Electronic Component
BM0264525733
Electronic Component
Electronic Component
Electronic Component
10000

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

1N4148WL2 产品概述

一、主要特性

1N4148WL2 是扬杰(YANGJIE)生产的一款高压整流二极管,针对需要高耐压和中等整流电流的场合优化设计。器件具有高达1200V的直流反向耐压和1A的整流电流能力,在1A工作点下正向压降为3.4V,反向漏电小(1200V 时典型反向电流仅5µA),适合工业级和高压电源应用。工作结温范围宽(-55℃ 至 +175℃),能够满足高温环境和高可靠性系统的需求。封装为 DFN1006-2(相当于 SOD-882),体积小、焊接可靠,方便表面贴装生产。

二、关键电气参数

  • 最大整流电流(Io):1A(连续)
  • 直流反向耐压(Vr):1200V
  • 正向压降(Vf):3.4V @ 1A
  • 反向电流(Ir):5µA @ 1200V
  • 工作结温(Tj):-55℃ ~ +175℃
    这些参数表明器件可承受较高电压并在中等电流下工作,反向漏电低,有助于降低高压整流和保持电路的稳定性。

三、封装与热性能

1N4148WL2 采用 DFN1006-2(SOD-882)小体积贴片封装,封装优势包括:

  • 占板面积小,适合高密度布局;
  • 良好的焊接可靠性、可进行回流焊处理;
  • 通过合理的PCB散热过孔和铜箔,能有效带走结温,提高功率承载能力。 在设计时建议为封装提供适当的散热路径(焊盘加大、底层铜厚或热过孔),并按环境温度进行功率及电流的降额设计。

四、典型应用场景

  • 高压开关电源(HV SMPS)之输入整流或高压回路
  • 工业高压电源、测量设备和偏置电源
  • 显示电源、荧光/冷阴极驱动线路、高压倍压电路
  • 浪涌/反向抑制、开关管保护等需要高耐压的场合

五、设计与使用建议

  • 电压裕量:在实际应用中建议留出充分的击穿裕度,避免在长期工作下接近1200V 极限;若存在浪涌或尖峰,须考虑更高耐压或添加保护元件。
  • 温度管理:当结温升高时器件漏电和正向压降会变化,需根据工作温度进行电流降额并增强散热。
  • PCB 布局:为减小热阻,应增大器件焊盘铜面积并视情况使用热过孔连接内层或底层铜箔。
  • 焊接工艺:遵循厂商推荐的回流焊工艺曲线,避免过热或冷却过快造成应力。

六、可靠性与选型要点

在选型时应综合考量工作电压、浪涌环境、工作温度和封装可散热能力。1N4148WL2 以其高耐压、低漏电和宽温度范围,适合需要长期稳定运行的工业及仪器设备。但若工作电流显著高于1A 或存在频繁的大幅浪涌脉冲,应选择额定更高的器件或并联、配合吸收元件进行保护。采购时优先选择正规供应渠道并关注真实出货参数与出厂测试报告,以确保品质与一致性。

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