WMSIC Electronic Components

Jingdao Microelectronics S3GB

ModelS3GB
PackageSMB
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 Option 131505

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
Electronic S3GB
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
S3GB
Electronic Component
1
Package
SMB
Electronic Component
0.21g
Electronic Component
1
Electronic Component
BM0265794257
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S3GB通用整流二极管产品概述

一、产品定位与核心属性

S3GB是晶导微电子推出的独立式通用整流二极管,属于中小功率整流器件范畴,核心定位是满足常规电路的整流需求,平衡性能、成本与可靠性,适配消费电子、家电、工业控制等多领域的中小功率应用场景。其设计围绕“低损耗、高裕量、宽温适配”展开,是替代传统插件整流管的表面贴装优选方案。

二、关键电气参数详解

S3GB的参数覆盖了常规整流应用的核心需求,各项指标均有明确的实用价值:

  1. 正向压降(Vf):1.1V@3A
    比同类部分产品低0.1~0.2V,能显著降低导通损耗——比如在100W电源中,持续3A电流下的损耗仅为3.3W,远低于高Vf器件的4W+,可减少电源发热、提升效率,尤其适合对效率敏感的LED驱动、快充适配器等场景。
  2. 直流反向耐压(Vr):400V
    满足220V交流市电的整流需求(市电峰值约311V),留有近30%的安全裕量,避免电路波动、浪涌导致的反向击穿风险,适配多数低压直流电路的耐压要求。
  3. 持续整流电流(If):3A
    可稳定承载中小功率电路的持续负载——比如50~100W开关电源的次级整流、小型家电的控制电源,无需并联多管即可满足电流需求,简化电路设计。
  4. 反向漏电流(Ir):5uA@400V
    漏电流极小,反向截止时功耗可忽略不计,能提升电路待机效率(比如适配器待机功耗可控制在10mW以内),同时减少反向漏电导致的器件老化风险。
  5. 浪涌耐量(Ifsm):90A
    能承受电源启动瞬间、负载突变(如电机启动)的突发大电流冲击,无需额外增加浪涌保护器件,降低电路成本与复杂度。
  6. 工作结温:-55℃~+150℃
    覆盖工业级(-40℃+85℃)与消费级(0℃+70℃)的温度范围,适配户外设备(低温环境)、家电内部(高温密闭空间)等场景,可靠性更稳定。

三、封装与可靠性设计

S3GB采用SMB(DO-214AA)表面贴装封装,具备三大优势:

  1. 小体积适配高密度设计:封装尺寸仅3.5×2.5×1.5mm,是传统插件管(如1N5404)体积的1/5左右,适合手机快充、LED驱动等小体积产品的PCB布局。
  2. 散热与可靠性平衡:塑封工艺采用高导热材料,配合合理的引脚设计,能快速将结热带出,适配150℃的最高结温;封装抗机械应力、抗潮湿能力符合工业级标准,长期使用不易失效。
  3. 环保与工艺兼容:符合RoHS无铅环保要求,可直接用于自动化贴装生产线,提升生产效率。

四、典型应用场景

S3GB的参数匹配度高,可覆盖以下主流场景:

  1. LED驱动电源:50~100W LED面板灯、球泡灯驱动的次级整流,低Vf减少发热,3A电流满足负载,宽温适配户外LED屏。
  2. 小型家电控制电源:微波炉、电烤箱、豆浆机的辅助电源,400V耐压应对市电波动,90A浪涌承受启动冲击。
  3. 消费电子适配器:手机快充(18~65W)、笔记本电脑适配器的辅助整流,SMB封装适配小体积设计,低漏电流降低待机功耗。
  4. 工业控制辅助电源:PLC模块、传感器节点的辅助电源,-55℃低温适配北方户外设备,150℃高温耐受工业控制柜内的密闭环境。

五、选型优势总结

对比同类进口/国产器件,S3GB的核心优势在于:

  1. 性能均衡无短板:参数覆盖常规需求,无需为某一指标牺牲其他性能(如部分低Vf器件耐压不足,部分高耐压器件电流小)。
  2. 成本可控:国产晶导的供应链优势,性价比优于进口品牌(如肖特基管),适合批量应用。
  3. 可靠性验证充分:晶导微电子作为国内二极管主流厂商,S3GB经过高低温循环、浪涌冲击等可靠性测试,满足GB/T 14023标准。

综上,S3GB是中小功率整流场景的“实用型”器件,既适合消费电子的小体积设计,也能满足工业控制的宽温需求,是替代传统插件管的高性价比选择。

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