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FUXINSEMI DFLS240L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FUXINSEMI DFLS240L
- Type
- FUXINSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FUXINSEMI
- Electronic Component
- DFLS240L
- Electronic Component
- 1
- Package
- PowerDI-123
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.039g
- Electronic Component
- 1
- Electronic Component
- BM0264480226
- Current
- 2A
- Diode
- Electronic Component
- Current(Ir)
- 100uA@40V
- (Vf)
- 500mV@2A
- 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.
DFLS240L 产品概述 — FUXINSEMI 肖特基二极管（PowerDI-123）
一、产品简介
DFLS240L 是 FUXINSEMI（富芯森美）推出的一款独立式肖特基整流二极管，采用紧凑的 PowerDI-123 表面贴装封装，面向中小功率电源与开关整流应用。该器件在 2A 工作电流条件下具有约 0.5V 的低正向压降，并具备 40V 的直流反向耐压，结合良好的浪涌能力与宽温度工作范围，适合多种工业与消费电子场景。
二、主要特点
- 低正向压降：Vf ≈ 500mV @ 2A，降低导通损耗，有利于提高转换效率与降低发热。
- 可靠的反向耐压：Vr = 40V，适用于大多数 12V/24V 系统的整流与保护。
- 低反向漏电：Ir ≤ 100μA @ 40V，利于待机与低功耗应用。
- 浪涌能力：Ifsm = 50A（单次非重复峰值），具备良好抑制瞬态冲击的能力。
- 宽温度范围：工作结温 -55℃ 至 +125℃，适应工业级环境。
三、典型应用场景
- 开关电源（SMPS）二次整流、续流二极管（freewheeling）
- 逆接保护与电源路径切换（OR-ing）
- 车载与工业 12V/24V 电源模块
- 电池充放电管理中的低压降二极管
- LED 驱动与适配器整流
四、封装与热管理建议
PowerDI-123 封装体积小、引脚热阻较适中。推荐在 PCB 上设计适当的散热铜箔与热过孔（若空间允许）以降低结温。布板时应将二极管靠近热源或与散热器协同布局，保证在高电流工况下有良好散热路径；同时在靠近大电流走线处加宽铜箔以减少寄生阻抗。
五、使用与可靠性建议
- 焊接工艺：建议按无铅回流焊工艺（IEC/IPC 标准）进行，避免超出制造商推荐的回流峰值温度与保温时间。
- 电流降额：长期工作在 2A 附近时应考虑环境温度与散热条件，适当降额使用以延长寿命。
- 浪涌处理：虽然 Ifsm 为 50A，但仍建议在设计中考虑限流或缓冲措施以应对频繁冲击。
- 极性标记：使用时注意器件极性与 PCB 丝印，避免误焊导致电路损坏。
六、订购信息与型号说明
产品型号：DFLS240L
品牌：FUXINSEMI（富芯森美）
封装：PowerDI-123（独立式 SMD）
主要电气参数速览：Vf 500mV@2A、Vr 40V、Ir 100μA@40V、Ifsm 50A、工作结温 -55℃~+125℃。
结语：DFLS240L 以其低压降、低漏电、良好的浪涌能力与工业级温度范围，适合需要高效率、小体积与可靠性的整流与保护应用。在最终设计前建议参考厂商完整数据手册进行热仿真与电气验证。
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