WMSIC Electronic Components

Jingdao Microelectronics DSL26W

ModelDSL26W
PackageSOD-123FL
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic DSL26W
Type
Jingdao Microelectronics
Minimum package
3000

Technical parameters

Electronic Component
Electronic
Electronic Component
DSL26W
Electronic Component
1
Package
SOD-123FL
Electronic Component
Schottky Diode
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0264397123
Current
2A
Diode
1
Current(Ir)
300uA@60V
(Vf)
500mV@2A
Electronic Component
55℃~+150℃
Electronic Component
3000
Voltage Rating(Vr)
60V
Surge Current (Ifsm)
50A

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

DSL26W 产品概述

一、产品简介

DSL26W 是晶导微电子推出的一款小尺寸表面贴装整流二极管,采用 SOD-123FL 封装,面向中低电压、高电流整流和保护场景。器件为单个独立二极管,设计注重单位体积的电流承载能力与可靠性,适合空间受限但需处理较大脉冲或持续整流电流的应用。

二、主要技术参数

  • 二极管数目:1 个独立式
  • 正向压降 Vf:0.5 V @ 2 A
  • 直流反向耐压 Vr:60 V
  • 额定整流电流(Io):2 A
  • 反向漏电流 Ir:300 μA @ 60 V
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 非重复峰值浪涌电流 Ifsm:50 A(典型按脉冲标准测量)
  • 封装:SOD-123FL(小型表面贴装)

三、主要特性与优势

  • 低正向压降:0.5 V 在 2 A 条件下的 Vf 有助于降低导通功耗和发热,适用于提高效率或降低热设计成本的场合。
  • 紧凑封装:SOD-123FL 尺寸小、低型面,适合高密度布板与便携设备。
  • 良好的浪涌能力:50 A 峰值浪涌能力允许器件在短时充电/插拔或启动瞬态中承受较大脉冲电流。
  • 宽工作温度:-55 ℃ 至 +150 ℃ 的结温范围,满足工业级环境应用要求。
  • 可靠的反向耐压:60 V 反向耐压适合常见 12 V / 24 V 电源系统的整流及保护应用。

四、典型应用场景

  • 开关电源输出整流、续流二极管(中小功率 DC-DC、适配器)
  • 电池供电设备的逆向保护与防反接电路
  • 车载电源日常电流保护(需注意特殊电磁兼容与浪涌规范)
  • 工业控制和通信设备的整流与保护单元
  • 输入滤波与整流桥(单只作整流臂或与其它二极管配合使用)

五、热设计与 PCB 布局建议

  • 功耗估算:在额定整流电流 2 A 下,P = Vf × I ≈ 0.5 V × 2 A = 1.0 W,器件在持续工作时会产生明显热量,需要合理的铜箔散热与热管理。
  • PCB 布局:建议在器件引脚处设计足够的散热铜箔(顶部和底部铺铜),并在焊盘附近布置若干通孔(热 vias)连通内层或底层散热平面,以降低结到环境的热阻。
  • 热过压保护:在高环境温度或连续满载工况下,应评估结温并预留热余量;必要时选用并联或更大功率器件以分摊热负荷。
  • 短路径与大截面走线:整流路径尽量短且走线宽,以降低寄生电阻与局部发热。

六、可靠性注意事项

  • 反向漏电:Ir 为 300 μA @ 60 V,在高温下漏电会显著增加,若电路对静态漏电敏感(如高阻抗测量或低功耗待机),需评估漏电容忍度或考虑更低漏电型号。
  • 冲击与浪涌:Ifsm 为 50 A,适用于短时脉冲,但不等同于反复或长时浪涌能力。对频繁浪涌的应用应采用额外保护(限流器、热熔丝或 TVS)。
  • 焊接工艺:遵循 SOD-123FL 的回流焊工艺曲线,避免过高回流温度或重复加热导致器件热循环损伤。

七、使用建议与典型电路

  • 整流应用:作为输出整流或单向整流时,与电感/电容滤波器搭配使用,注意滤波元件的电流纹波与峰值电流不得超过二极管的 Ifsm/Io 限值。
  • 逆向保护:将 DSL26W 置于输入正极,防止反接时损坏主电路;若需要更低压降,可比较肖特基二极管方案,但需权衡耐压与漏电。
  • 启动/浪涌条件:在有大电容充电或冷启动电流时,应加限流电阻或 NTC,以防止超出 Ifsm 的浪涌伤害。

八、选型参考与替代

在需要更低正向压降或更高耐压/更低漏电的场景,可比较同类规格的肖特基或快速恢复二极管,但需关注其耐压、漏电与封装的匹配。选型时优先依据系统最大工作电压、连续电流、峰值浪涌与散热能力进行综合评估。

结语:DSL26W 以其小巧 SOD-123FL 封装、0.5 V 的低正向压降与 2 A 连续整流能力,适合空间受限且需处理中等功率的整流或保护任务。在设计时应充分考虑散热布局与漏电随温度升高的影响,以保证长期可靠运行。

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