WMSIC Electronic Components

TWGMC SD103AX Schottky Diode SD103AX

ModelSD103AX
PackageSOD-523
BrandTWGMC
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
TWGMC SD103AX
Type
TWGMC
Minimum package
3000

Technical parameters

Electronic Component
TWGMC
Electronic Component
SD103AX
Electronic Component
1
Package
SOD-523
Electronic Component
Schottky Diode
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0265826641
Current
350mA
Diode
Electronic Component
Current(Ir)
5uA@30V
(Vf)
600mV@200mA
Electronic Component
65℃~+125℃
Electronic Component
3000
Voltage Rating(Vr)
40V
Surge Current (Ifsm)
2A

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

SD103AX肖特基二极管产品概述

TWGMC(台湾迪嘉)推出的SD103AX是一款独立式肖特基二极管,采用超小型表面贴装SOD-523封装,针对低压、小电流、高密度设计场景优化,兼具低功耗、高开关速度与宽温适应性,是便携电子、电源管理等领域的高性价比选择。

一、产品基本信息

SD103AX属于肖特基势垒二极管(SBD)类别,采用独立式单管配置,无并联/串联结构,便于电路灵活布局。品牌为台湾迪嘉(TWGMC),封装类型为SOD-523——一种超小型贴片封装,尺寸紧凑(典型值:0.8mm×0.6mm×0.4mm),适合高密度PCB设计,可兼容自动化贴装工艺,降低生产难度与成本。

二、核心电气参数详解

SD103AX的关键参数针对低压应用场景优化,核心指标如下:

  1. 正向压降(Vf):600mV@200mA(典型值)——肖特基二极管固有低正向压降特性,远低于普通硅二极管(通常1V以上),可显著减少导通损耗,延长电池类设备续航;
  2. 直流反向耐压(Vr):40V(额定值)——满足大多数低压直流电路的反向耐压需求,避免反向击穿;
  3. 整流电流(If):350mA(连续值)——在SOD-523小封装下实现较高连续工作电流,平衡体积与性能;
  4. 反向漏电流(Ir):5uA@30V(典型值)——低漏电流设计减少反向损耗,提升电路效率;
  5. 工作结温范围:-65℃~+125℃——覆盖工业级温度范围,可适应极端环境(如低温户外设备、高温工业模块);
  6. 非重复峰值浪涌电流(Ifsm):2A(8.3ms脉冲)——具备瞬时浪涌承受能力,抵御电路突发脉冲干扰,提升可靠性。

三、封装与物理特性

SOD-523封装是SD103AX的核心优势之一:

  • 体积超小:相比传统0805封装更紧凑,节省PCB空间,适合耳机、智能手环等微型设备;
  • 贴装便捷:表面贴装工艺,无引脚设计(或短引脚),可通过回流焊快速生产,适配自动化产线;
  • 散热平衡:虽封装小,但肖特基二极管本身热阻较低,结合350mA连续电流设计,满足多数小功率应用散热需求。

四、性能优势总结

SD103AX针对目标场景,具备以下核心优势:

  1. 低功耗高效能:低正向压降+低反向漏电流,导通与反向损耗均控制在较低水平,适合电池供电设备;
  2. 高频响应快:无反向恢复时间(或极短),支持高频开关电路(如DC-DC转换器);
  3. 宽温可靠性:-65℃~+125℃工作结温,覆盖工业与消费电子极端环境;
  4. 小体积大电流:350mA连续电流在SOD-523封装中表现突出,平衡小型化与性能;
  5. 抗干扰能力:2A浪涌电流承受能力,应对电路瞬时脉冲,减少故障风险。

五、典型应用场景

SD103AX的参数与封装特性,使其广泛适用于以下场景:

  1. 便携电子设备:智能手机、智能手表、蓝牙耳机的电源管理模块(低功耗、小体积);
  2. 低压开关电源:DC-DC转换器(如5V转3.3V)的整流二极管(高频、低损耗);
  3. 信号处理电路:射频信号的整流、电压钳位(高开关速度);
  4. 工业控制模块:小型传感器、PLC辅助电路(宽温、抗浪涌);
  5. 消费电子配件:充电宝、无线充电器的电压转换电路(低功耗、小封装)。

综上,SD103AX是一款高性价比的小封装肖特基二极管,通过优化的电气参数与紧凑封装,完美适配低压、小电流、高密度设计的电子设备,可满足便携电子、电源管理、工业控制等多领域应用需求。

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