WMSIC Electronic Components

CJ SD103BWS

ModelSD103BWS
PackageSOD-323
BrandCJ
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
CJ SD103BWS
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
SD103BWS
Electronic Component
1
Package
SOD-323
Electronic Component
Schottky Diode
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0227000186
Current
350mA
Diode
Electronic Component
Current(Ir)
5uA@20V
(Vf)
600mV@200mA
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
30V

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

SD103BWS 产品概述

一、产品简介

SD103BWS 是 CJ(江苏长电/长晶)出品的一款独立式肖特基二极管,采用小型 SOD-323 封装,面向便携与空间受限的电子设备。该器件以低正向压降和快速响应为特点,适合低压高速整流与保护电路。

二、主要参数

  • 正向压降 (Vf):600 mV @ 200 mA
  • 直流反向耐压 (Vr):30 V
  • 最大整流电流:350 mA(连续)
  • 反向漏电流 (Ir):5 μA @ 20 V
  • 非重复峰值浪涌电流 (Ifsm):2 A(单次脉冲)
  • 封装:SOD-323
  • 品牌:CJ(江苏长电/长晶)

三、主要特性

  • 低正向压降:Vf≈0.6 V 在中等电流下可减少功耗和发热,适合电池供电系统。
  • 低反向漏电流:20 V 时 Ir 仅 5 μA,有利于待机功耗控制。
  • 小体积封装:SOD-323 适用于密集布局和便携设备。
  • 良好的浪涌能力:2 A 峰值浪涌能承受启动或瞬态冲击(非重复)。

四、典型应用

  • 便携式设备的电源整流与反向极性保护(电源 OR-ing、反接保护)。
  • 低压快速整流与开关电源二次侧整流(小功率场合)。
  • 信号线保护与钳位,抑制瞬态过压。
  • 低功耗系统的续流与旁路整流。

五、设计与使用建议

  • 热管理:尽管 Vf 低,但在接近 350 mA 连续工作时仍需考虑 PCB 散热与热阻,建议在布局时预留铜地或散热层并做电流方向评估。
  • 浪涌注意:Ifsm 为非重复峰值,遇强浪涌应采用限流或能量吸收措施,避免反复冲击。
  • 焊接与可靠性:按 SOD-323 的回流焊工艺规范执行,避免超温或长时间加热;存储与操作注意防潮防静电。
  • 电压余量:30 V 反向耐压适用于低压系统,若有更高反压或高压浪涌场景需选用更高 Vr 的型号。

六、封装与替代选型

SOD-323 封装体积小,适合空间受限设计。若需更高电流或更高耐压,可考虑大封装或额定更高的肖特基器件;若更低漏电或更低 Vf 是关键,则在同类产品中比较具体型号的典型曲线以选型。

综上,SD103BWS 在小型低压电源与保护场合具有良好的性价比,适合对体积、功耗和开关响应有要求的应用。

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