WMSIC Electronic Components

KUU SD103AW S4

ModelSD103AW S4
PackageSOD-123
BrandKUU
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
KUU SD103AW S4
Type
KUU
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
SD103AW S4
Electronic Component
1
Package
SOD-123
Electronic Component
Schottky Diode
Electronic Component
0.031g
Electronic Component
1
Electronic Component
BM0264548719
Current
350mA
Diode
Electronic Component
Current(Ir)
5uA@30V
(Vf)
600mV@200mA
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
40V

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

SD103AW S4 肖特基二极管产品概述

一、产品定位与基本属性

SD103AW S4是KUU品牌推出的独立式肖特基二极管,采用SOD-123小型表面贴装封装,属于低压小功率整流器件。其核心设计聚焦于低导通损耗、小体积、高可靠性,适配消费电子、便携设备等对效率和空间敏感的应用场景,是替代普通硅二极管的高效选型。

二、关键电气参数详解

该器件的核心参数直接决定应用边界,具体解析如下:

  1. 正向压降(Vf):600mV@200mA
    肖特基二极管的典型优势是低正向压降(远低于普通硅二极管1V以上的压降),可显著降低导通时的能量损耗,提升电源转换效率,尤其适合电池供电设备。
  2. 直流反向耐压(Vr):40V
    适用于5V、12V等低压直流系统,反向电压不超过40V时可稳定工作,避免击穿风险。
  3. 连续整流电流(If):350mA
    可长期稳定承载350mA以内的连续正向电流,满足小功率电路的整流需求(如小容量电池充电)。
  4. 反向漏电流(Ir):5uA@30V
    反向漏电流极小,待机状态下功耗低,有助于延长电池续航时间(如智能手环、遥控器等设备)。
  5. 非重复峰值浪涌电流(Ifsm):2A
    可承受单次2A的脉冲电流冲击,提升电路抗突发干扰(如电源上电浪涌)的能力,减少器件损坏概率。

三、封装与机械特性

SD103AW S4采用SOD-123表面贴装封装,具有以下机械优势:

  • 小体积:封装尺寸约1.6mm×0.8mm×0.5mm,仅占极小PCB空间,适配便携设备的高密度布局;
  • 易焊接:两引脚设计兼容回流焊、波峰焊等自动化生产工艺,焊接可靠性高;
  • 抗应力:封装结构紧凑,可承受一定机械振动与冲击,适应移动场景(如车载、手持设备)的使用需求。

四、典型应用场景

结合参数特性,该器件适用于以下场景:

  1. 便携电子设备:智能手机、蓝牙耳机、智能手环的充电电路整流,兼顾小体积与低损耗;
  2. 低压电源适配器:5V/1A以下小功率适配器的整流桥或续流二极管,提升转换效率;
  3. LED驱动电路:低功耗LED灯串的整流环节,减少导通损耗,保证LED亮度稳定;
  4. 汽车辅助电路:车内12V低压系统(如氛围灯、USB充电口)的整流,40V耐压满足车载电压波动需求;
  5. 消费类电子配件:遥控器、电子玩具的电源整流,降低待机功耗,延长电池寿命。

五、产品优势与价值

相较于同类普通硅二极管,SD103AW S4具有明显价值:

  1. 效率提升:低正向压降减少能量损耗,适合对电源效率要求高的设备;
  2. 空间节省:SOD-123封装适配小型化产品设计趋势;
  3. 可靠性高:低反向漏电流+抗浪涌能力,降低电路故障概率;
  4. 成本可控:成熟封装与工艺,适合批量应用的成本控制需求。

六、选型与使用注意事项

为保证器件稳定工作,需注意以下要点:

  1. 耐压匹配:反向电压不得超过40V,避免高压击穿;
  2. 电流限制:连续工作电流不超过350mA,单次浪涌电流不超过2A(非重复);
  3. 温度范围:肖特基二极管反向漏电流随温度升高略有增加,建议工作温度控制在-55℃~125℃以内;
  4. 焊接工艺:遵循SOD-123封装的回流焊温度曲线(如峰值温度240℃左右),避免过热损坏;
  5. 场景适配:不适用于高压(>40V)、大电流(>350mA连续)场景,需根据实际需求选型。

综上,SD103AW S4是一款平衡效率、体积与可靠性的低压肖特基二极管,可广泛应用于消费电子、便携设备等领域。

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