WMSIC Electronic Components

LGE FM4007

ModelFM4007
PackageSOD-123FL
BrandLGE
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+

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Technical data

Product details

19 specifications

Core information

Product name
LGE FM4007
Type
LGE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LGE
Electronic Component
FM4007
Electronic Component
1
Package
SOD-123FL
Electronic Component
General Purpose Diode
Electronic Component
0.041g
Electronic Component
1
Electronic Component
BM0257672017
Current
1A
Diode
Electronic Component
Current(Ir)
5uA@1kV
(Vf)
1.1V@1A
Electronic Component
55℃~+150℃
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.

FM4007 — 通用高压整流二极管产品概述

一、产品简介

FM4007 是 LGE(鲁光)推出的一款独立式通用整流二极管,采用 SOD-123FL 小封装,面向中高压整流和保护应用。该器件在 1A 工作电流条件下正向压降约为 1.1V,反向耐压高达 1000V,反向漏电流在 1kV 时典型值仅 5μA,具有良好的高压耐受能力与低漏电特性,适合要求体积小、耐压高的电源与保护电路。

二、主要特性

  • 正向电压:Vf = 1.1V @ If = 1A(典型)
  • 直流反向耐压:Vr = 1000V
  • 直流整流电流:If(AV) = 1A
  • 反向漏电流:Ir = 5μA @ Vr = 1kV(典型)
  • 非重复峰值浪涌电流:Ifsm = 30A(瞬态浪涌能力)
  • 工作结温范围:Tj = -55℃ ~ +150℃
  • 封装形式:SOD-123FL(小型表面贴装,适合自动贴装工艺)
  • 器件类型:独立式二极管(非肖特基、非开关专用)

三、电气参数与典型性能

FM4007 在常见工作点下表现稳定,1A 直流整流时正向压降约 1.1V,能在中等功率密度场合提供可靠整流。1000V 的反向耐压和极低的漏电流(5μA@1kV)使其可用于高压整流链、反向保护及高压检测电路。30A 的非重复峰值浪涌电流保证了在浪涌过载或瞬态冲击时的短时存活能力(请在设计时关注浪涌时长与热耗散)。

四、封装与热性能

SOD-123FL 为小型表面贴装封装,适合高密度 PCB 设计和自动化贴装。尽管封装体积小,但在正常自然冷却条件下可承受 1A 持续整流。设计散热时建议:

  • 保持焊盘足够铜箔面积以改善散热;
  • 避免在高温环境下连续满载工作,必要时加装散热片或改善 PCB 散热层;
  • 注意封装附近元件扰流及热耦合,确保器件结温不超出 -55℃~+150℃ 规格范围。

五、典型应用场景

  • 开关电源整流与续流回路(高压输入侧)
  • 高压电源与驱动电路的整流与保护
  • 输入过压/反接保护元件
  • 工业电源、家电以及照明电源中的高压整流
  • 测试与测量设备中的高压检测通道

六、设计注意事项与可靠性

  • 在高压边应用时,注意 PCB 上的爬电距离和绝缘设计,以防击穿或沿面爬电问题;
  • 对于反复浪涌或频繁开关场合,需评估器件热循环与寿命,必要时选用更高 Ifsm 能力或并联设计(并联需注意电流平衡);
  • 长期在高温高压下工作时,应评估漏电流随温度上升的变化,确保系统误动作风险可控;
  • 推荐在生产与焊接过程中遵循 SOD-123FL 的回流焊温度曲线以保证焊接可靠性。

七、替代与配套建议

在需要更低正向压降或更高峰值浪涌能力的场合,可考虑肖特基或更大封装的高浪涌二极管;若需更高的工作电流,可采用 TO-xxx 或 DO-214 等散热更好的封装。选型时需综合考虑耐压、正向压降、漏电流及热管理方案。

八、包装与订购

FM4007 提供标准卷带包装,适用于自动贴装生产线。订购时请明确所需的最小起订量、包装方式与相关质量认证(如有),并与供应商确认器件的批次与测试报告以确保一致性与稳定性。

总结:FM4007(LGE 鲁光)是一款面向中高压整流和保护应用的通用二极管,凭借 1kV 耐压、低漏电和小型 SOD-123FL 封装,适合体积受限且需高压耐受的电子系统。根据具体应用场景合理设计散热与 PCB 布局,可获得可靠而稳定的长期工作表现。

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