WMSIC Electronic Components

DOWO LMBR1200ET1G

ModelLMBR1200ET1G
PackageSOD-323HE
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 LMBR1200ET1G
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
LMBR1200ET1G
Electronic Component
1
Package
SOD-323HE
Electronic Component
Schottky Diode
Electronic Component
0.031g
Electronic Component
1
Electronic Component
BM0258760032
Current
1A
Diode
Electronic Component
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
200V
Surge Current (Ifsm)
25A

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

LMBR1200ET1G 产品概述

一、产品简介

LMBR1200ET1G 为一款小封装肖特基整流二极管,封装形式为 SOD-323HE,单颗独立式器件,面向对体积、开关速度和低正向压降有较高要求的中低功率电子应用。该器件由 DOWO(东沃)品牌提供,适用于需要快速整流、低功耗损耗及高浪涌能力的场景。

二、主要电气参数(基于给定资料)

  • 直流反向耐压 Vr:200 V
  • 额定整流电流(Io/If):1 A(连续)
  • 非重复峰值浪涌电流 Ifsm:25 A(单次脉冲)
  • 封装:SOD-323HE(小型表面贴装)
  • 配置:独立式(单颗肖特基二极管)
    说明:给定资料中列出的“反向电流 Ir:25 A”及“工作结温范围 -55℃+1℃”与常规器件技术规范不符(反向电流通常为µA级别,结温上限通常为 +125℃+150℃),应在采购或设计前向供应商核实原始数据表以确认真实参数。

三、器件特点与优势

  • 低正向压降:肖特基结构使正向压降低于硅整流器件,有利于提高转换效率、降低发热,特别适合低压差或高频开关场合。
  • 快速开关:肖特基二极管不存在显著反向恢复电荷,适用于开关电源共模整流、快速整流路径及二极管隔离保护。
  • 良好浪涌承受能力:Ifsm 标称 25 A(单脉冲)可承受系统启动或短时浪涌,但应结合脉冲宽度和封装散热能力评估。
  • 小体积封装:SOD-323HE 占板面积小,便于高密度贴装与便携设备设计。

四、典型应用场景

  • 开关电源(SMPS)二次侧整流或同步整流的替代件。
  • 逆向保护/反接保护电路(在确认反向泄漏在可接受范围内后)。
  • 二极管钳位、快速恢复路径、续流二极管(freewheeling)等电源管理用途。
  • 消费电子、通信设备、仪器仪表中对体积和效率有要求的电路。

五、封装与热管理注意事项

  • SOD-323HE 虽为表面贴装小封装,但散热能力有限。在设计 PCB 时,应在焊盘下方与周围增加铜箔面积(散热平面或热沉),并通过多层板的过孔连接内外层散热层以提高热耗散。
  • 连续1 A 工作电流在长期使用时会产生显著功耗(取决于正向压降),需进行结温评估并留有安全裕度。
  • 在处理及回流焊工艺中遵守封装温度曲线,避免过高峰值温度和重复焊接损伤器件。

六、设计与选型建议

  • 数据核实:由于部分给定参数异常(尤其为反向电流与结温范围),采购前务必获取并核对生产厂商的正式数据手册(Datasheet),确认反向漏电流、结温上限、正向电压曲线及包装信息。
  • 热降额:在高环境温度或连续高频开关条件下,对额定电流进行降额处理,保证结温不超过厂商规范。
  • 浪涌与脉冲条件:Ifsm 为单次峰值浪涌指标,需结合浪涌波形(例如 10 ms 或 8/20 µs)确认实际承受能力;对于反复冲击场景建议选择更高 Ifsm 或并联/增加限流保护元件。
  • 反向漏电:肖特基器件在高温下反向漏电流会显著升高,关键应用(如高压侧隔离或低功耗电路)需评估漏电对系统造成的影响。

七、可靠性与检测建议

  • 建议在样机阶段进行温度扫描测试、功率耗散测量和长时间老化试验,验证在目标工作条件下的稳定性。
  • 对浪涌、重启与短路等异常工况进行系统级测试,确保二极管在极端条件下不会致使系统失效。
  • 建议在量产前与厂商确认元件的批次一致性、ESD 等级及包装追溯信息。

总结:LMBR1200ET1G(DOWO,SOD-323HE)是一款面向中低功率、需要快速整流与低压降的肖特基二极管。基于目前给定的关键参数,其在开关电源、保护与续流等领域具有良好适用性;但文中存在若干明显标注异常(反向电流与结温),在最终设计与采购前务必向供应商核实完整数据手册并进行必要的热与浪涌验证,以确保系统可靠性。

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