WMSIC Electronic Components

DOWO SS24L

ModelSS24L
PackageSOD-123FL
BrandDOWO
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
DOWO SS24L
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SS24L
Electronic Component
1
Package
SOD-123FL
Electronic Component
Schottky Diode
Electronic Component
0.062g
Electronic Component
1
Electronic Component
BM0264254691
Current
2A
Diode
1
(Vf)
400mV@2A
Electronic Component
55℃~+125℃
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
40V

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

SS24L 产品概述

一、主要参数

  • 型号:SS24L(DOWO/东沃)
  • 二极管配置:独立式,肖特基整流二极管
  • 正向压降(Vf):约 0.40 V @ 2 A
  • 直流反向耐压(Vr):40 V
  • 连续整流电流:2 A
  • 工作结温范围:-55 ℃ ~ +125 ℃
  • 非重复峰值浪涌电流(Ifsm):40 A
  • 封装:SOD-123FL(小型扁平贴片封装)

二、产品特性

SS24L 为低正向压降的肖特基整流二极管,面向中小功率整流与保护应用。主要特性包括:

  • 低导通压降,减少导通损耗,适合高效率电源与同步整流替代场合。
  • 2 A 持续整流能力,满足常见开关电源、充电器与车载电子的中等电流需求。
  • 40 V 反向耐压,适用于 12 V、24 V 等常见车载与工业电源系统。
  • 短时浪涌能力强(Ifsm 40 A),具备一定的耐启动/浪涌电流能力。
  • SOD-123FL 小封装适合紧凑型 PCB 布局,便于自动化贴片装配。

注:在 2 A 工作点下,单只器件的导通损耗约为 P = I × Vf ≈ 0.8 W,需关注散热条件以保证长期可靠性。

三、典型应用

  • 开关电源整流(次级整流或续流回路)
  • DC-DC 转换器输出整流与取样保护
  • 电池充电与电源管理(反接保护、阻断回流)
  • 车载电子、仪器仪表的防反接与整流
  • 小功率适配器与泛用整流模块

四、封装与散热

SOD-123FL 封装体积小,适合高密度布板。由于器件在高电流工作时会产生热量,建议:

  • 在大电流路径处增加铜箔面积以扩散热量;必要时在底层增加过孔连接散热层。
  • 给出合理的散热裕量与电流降额策略:在无额外散热的 PCB 上,标称 2 A 为额定连续电流;随环境温度升高应线性或按厂商曲线降额至 125 ℃ 结温极限。
  • 对于频繁浪涌或持续高电流场合,应考虑并联或选用更大封装器件。

五、可靠性与使用建议

  • 保持工作结温在规定范围内,避免长期靠近上限温度运行以延长寿命。
  • 在含有感性负载的场合,应配合合适的抑制器件(如 TVS)以吸收反向瞬态,保护二极管免受高压尖峰损伤。
  • 焊接时遵循 SMD 组件的常规回流曲线,避免超出材料允许的峰值温度与时长。
  • 存储与装配注意防潮,必要时进行回潮烘烤。

六、典型电路与布局注意事项

  • 反接保护:将 SS24L 放在电源正/负路上作为低压降防反接二极管,正向压降小可降低功耗与热负荷。
  • 自由回路(续流):在开关 MOSFET 或继电器驱动回路中做续流二极管,快速导通、损耗低。
  • 布局要点:电源进出线尽量短且宽,焊盘加大并与散热铜皮相连;避免热源近邻器件集中导致局部高温。

七、订购与替代型号

  • 推荐型号:SS24L(DOWO / 东沃),封装 SOD-123FL。
  • 若需更高电流或更低压降,可考虑更大封装或同步整流解决方案;若需更高耐压,可选 60 V 或更高 Vr 的肖特基型号。
  • 订购时确认封装、极性与规格一致,关注批次与出厂检测报告以保证一致性。

总结:SS24L 是一款面向中等电流、要求低导通损耗与紧凑封装的肖特基整流二极管,适用于多种消费、车载与工业电源场景。合理的热设计与 PCB 布局是确保器件长期稳定工作的关键。

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