WMSIC Electronic Components

LRC SM3100C

ModelSM3100C
PackageSMC
BrandLRC
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC SM3100C
Type
LRC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
SM3100C
Electronic Component
1
Package
SMC
Electronic Component
Schottky Diode
Electronic Component
0.38g
Electronic Component
1
Electronic Component
BM0264743571
Current
3A
Diode
1
Current(Ir)
250uA@100V
(Vf)
850mV@3A
Electronic Component
50℃~+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.

SM3100C — LRC(乐山无线电)肖特基二极管产品概述

一、产品简介

SM3100C 是乐山无线电(LRC)推出的一款肖特基整流二极管,面向开关电源、功率整流与保护电路等场景。基于肖特基势垒结构,器件具有较低的正向压降和非常短的开关时间,适合需要高效率、低功耗与抗浪涌能力的电源设计。

二、主要电气参数(典型/额定)

  • 型号:SM3100C(品牌:LRC)
  • 正向压降 Vf:850 mV @ 3.0 A
  • 额定整流电流 If(AV):3 A
  • 直流反向耐压 Vr:100 V
  • 反向漏电流 Ir:250 μA @ 100 V
  • 非重复峰值浪涌电流 Ifsm:80 A
  • 工作结温范围:-50 ℃ ~ +150 ℃

以上参数为器件在指定测试条件下的典型或最大额定值,设计时请按厂商完整数据手册留裕量。

三、器件特点与优点

  • 低正向压降:在较大直流电流下(3 A)Vf 约 0.85 V,有助于降低导通损耗,提高效率。
  • 低开关损耗:肖特基结构几乎无正显著的反向恢复电流,适合高频开关场合。
  • 抗浪涌能力:非重复峰值浪涌电流达 80 A,可承受开机/短时冲击电流。
  • 宽工作温度:-50 ℃ 至 +150 ℃,适应苛刻环境应用。

四、典型应用

  • 开关电源(SMPS)整流与同步替代器件
  • DC-DC 转换器输出整流
  • 反向保护(肖特基用于防反接、降低压降)
  • 电池充放电路径、UPS 与电源管理模块
  • 浪涌抑制与瞬态钳位电路(配合限流或熔丝)

五、设计与使用建议

  • 热设计:按 Vf × If 估算功率损耗(在 3 A 条件下约 0.85 V × 3 A ≈ 2.55 W),需要足够的 PCB 散热铜箔或散热片以控制结温。长期高平均功率工作应确保结温不超过厂家推荐范围。
  • 漏电与温度关系:肖特基器件的反向漏电随温度上升明显增大,若工作于高温或高反向电压环境,应评估漏电对系统的影响。
  • 浪涌限制:非重复峰值浪涌电流为瞬态能力,重复或长时间冲击会损伤器件,必要时配合限流器件或热熔断保护。
  • 封装与焊接:不同封装的热阻差异较大,设计时应参考具体封装的热阻与焊接工艺(建议遵循厂家回流曲线与焊接规范)。
  • 过压与反向安全:Vr=100 V,若系统含较大瞬态电压或反向浪涌,应增加瞬态抑制器(TVS)或采取吸收电路。

六、选型与替代考虑

在选型时,除了上述关键参数外,应确认器件实际封装(SMA/SMB/SMC 等)、机械尺寸、焊盘建议以及热阻参数。若需更低 Vf 或更高电流能力,可考虑同系列更大规格器件;如需更高反向耐压,应选择 Vr 更高的型号。

七、可靠性与存储

  • 存储时避免潮湿与长期高温,建议按厂商包装说明(防潮袋、干燥剂)保存。
  • 在高温或反复热循环环境下,需关注焊点可靠性与封装机械应力。

结论:SM3100C 为一款面向中等功率整流与保护应用的肖特基二极管,兼具低压降与良好的瞬态浪涌能力,适用于要求高效率和可靠性的电源设计。具体电气、热与封装细节仍应以 LRC 的完整数据手册为准。

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