WMSIC Electronic Components

Jingdao Microelectronics S3MC

ModelS3MC
PackageSMC(DO-214AB)
BrandElectronic
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
Electronic S3MC
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
S3MC
Electronic Component
1
Package
SMC(DO-214AB)
Electronic Component
General Purpose Diode
Electronic Component
0.401g
Electronic Component
1
Electronic Component
BM0264858918
Current
3A
Diode
Electronic Component
Current(Ir)
5uA@1000V
(Vf)
1V@3A
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.

晶导微电子S3MC通用整流二极管产品概述

晶导微电子推出的S3MC是一款独立式表面贴装通用整流二极管,采用SMC(DO-214AB)封装,针对中功率、小体积应用场景优化设计,具备高可靠性、低损耗等特点,广泛适配消费电子、工业控制等领域需求。

一、产品基本定位与封装特性

S3MC定位于中功率通用整流器件,核心优势是“小体积+高功率密度”:

  • 封装采用SMC(DO-214AB)表面贴装形式,尺寸紧凑(典型长3.8mm×宽2.7mm×高1.1mm),适合自动化贴装,可大幅节省PCB空间,满足高密度电路设计需求;
  • 品牌为晶导微电子,作为国内功率器件主流厂商,其产品经多年市场验证,在一致性、可靠性上具备优势,且符合RoHS环保要求。

二、核心电性能参数解析

S3MC的关键参数针对实际应用场景做了针对性优化:

  1. 整流电流(IF(AV)):3A
    直流正向平均电流达3A,可满足大部分小功率电源、适配器的整流需求,无需并联多管即可实现中功率输出;
  2. 正向压降(VF):1V@3A
    比普通硅整流管(如1N4007约1.1V@1A)更低,3A电流下导通损耗仅3W,发热显著减少,提升电源效率约3%(对比1.1V器件),适合对效率敏感的场景;
  3. 反向耐压(VRRM):1kV
    直流反向耐压达1000V,余量充足(220V交流整流峰值约311V),可应对电网波动、浪涌电压,避免击穿失效;
  4. 反向漏电流(IR):5μA@1000V
    反向截止时漏电流极小,长期工作下额外功耗可忽略,提升器件稳定性与寿命;
  5. 工作结温(TJ):-55℃~+150℃
    宽温范围覆盖低温(如户外设备-40℃)与高温(如电源内部120℃)场景,无需额外温控设计。

三、工作环境与可靠性设计

S3MC从设计到封装均考虑了可靠性需求:

  • 热性能优化:结到壳热阻典型值约10℃/W,3A工作时结温升高仅30℃,结合PCB铜箔散热即可满足150℃结温限制;
  • 封装可靠性:SMC封装具备良好气密性与机械强度,可承受回流焊高温(260℃/10s),焊接后无开裂风险;
  • 抗浪涌能力:反向耐压冗余设计,可承受短时间浪涌电压(如1.2kV/10μs),适应复杂电网环境。

四、典型应用场景

S3MC因“小体积+高参数”特性,适配以下场景:

  1. 消费电子:手机/平板充电器、蓝牙耳机充电盒、小型家电电源(如加湿器、台灯);
  2. 工业控制:小型PLC供电模块、传感器信号调理电路、低压变频器辅助电源;
  3. 家电领域:电磁炉、微波炉的整流桥前级、小型洗衣机控制电源;
  4. 通信设备:路由器、交换机的电源模块、小型基站辅助供电。

五、选型与应用注意事项

为保障长期可靠性,应用时需注意:

  1. 电流降额:环境温度>85℃时,建议将实际电流控制在2.5A以下(降额20%);
  2. 散热设计:若PCB铜箔面积<10cm²,需增加散热片或拓宽铜箔(建议≥15cm²);
  3. 焊接工艺:避免手工焊接温度过高(>300℃),回流焊需遵循IPC标准;
  4. 静电防护:生产过程中需佩戴防静电手环,避免静电击穿器件。

整体来看,S3MC是一款性价比突出的中功率通用整流二极管,适合对体积、效率、可靠性有要求的各类电子设备,是替代传统插件二极管的理想表面贴装方案。

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