WMSIC Electronic Components

CJ BAV20W

ModelBAV20W
PackageSOD-123
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ BAV20W
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
BAV20W
Electronic Component
1
Package
SOD-123
Electronic Component
Switch Diode
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0264536834
Current
200mA
Diode
Electronic Component
Current(Ir)
100nA@150V
(Vf)
1.25V@200mA
Power Dissipation(Pd)
500mW
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.

BAV20W 开关二极管产品概述

BAV20W是江苏长电(CJ)推出的一款独立式开关二极管,采用SOD-123小型表面贴装封装,凭借均衡的电气性能与紧凑体积,广泛适配便携式电子、高频开关等场景。以下从产品属性、核心参数、封装特性、应用场景等维度展开概述。

一、产品基本属性与品牌背景

BAV20W由国内半导体行业头部厂商江苏长电(CJ) 生产,长电科技在分立器件领域具备20余年研发制造经验,产品一致性与可靠性经市场验证,广泛配套消费电子、通信、汽车电子等行业。该二极管为独立式配置(单管封装),无并联/串联结构,电路设计灵活度高;封装采用SOD-123(小型表面贴装二极管),符合现代电子设备小型化、高密度贴装的发展趋势。

二、核心电气参数详解

BAV20W的参数针对开关二极管核心需求优化,关键指标如下:

2.1 正向导通特性

  • 正向压降(Vf):1.25V(@200mA)—— 导通压降适中,既避免过高压降导致的功耗浪费,又能满足中等电流下的导通需求;
  • 直流整流电流(If):200mA—— 可持续工作的最大直流电流,适配低功率电源的整流或续流;
  • 耗散功率(Pd):500mW—— 最大允许功耗,结合Vf与If,可支撑常规开关场景下的连续工作。

2.2 反向阻断特性

  • 直流反向耐压(Vr):150V—— 反向可承受的最大直流电压,满足多数低压电路的反向保护需求;
  • 反向漏电流(Ir):100nA(@150V)—— 漏电流极小,确保反向阻断时的低功耗与信号完整性,避免漏电流干扰电路。

2.3 开关与浪涌特性

  • 反向恢复时间(Trr):50ns—— 快速恢复是开关二极管核心优势,可减少高频切换时的反向导通损耗,适配高频信号快速切换;
  • 非重复峰值浪涌电流(Ifsm):1.7A—— 可承受瞬间过流冲击(如电源上电、脉冲干扰),提升电路抗浪涌能力,但需注意不可持续过流。

三、封装与物理特性

SOD-123封装的BAV20W具备以下物理特点:

  • 尺寸紧凑:典型封装尺寸约1.6mm×0.8mm×0.7mm(长×宽×高),适合便携式设备(手机、智能手环)的高密度PCB布局;
  • 贴装便捷:表面贴装设计,可通过自动化贴片机快速组装,降低生产难度;
  • 散热适配:虽为小型封装,但500mW耗散功率与常规工作电流匹配,无需额外散热措施即可满足多数场景需求。

四、典型应用场景

结合参数与封装特性,BAV20W的主要应用场景包括:

  1. 高频开关电路:50ns反向恢复时间适配10MHz左右高频切换,常用于信号切换模块、高速逻辑接口;
  2. 低功率电源整流:200mA整流电流与1.25V压降,适合小型电源(5V/1A电源次级整流、电池充电续流);
  3. 便携式电子设备:SOD-123小型化优势,广泛应用于蓝牙耳机、智能手表、便携音箱的信号保护与切换;
  4. 过压保护电路:150V反向耐压与低漏电流,可用于信号钳位、静电放电(ESD)辅助保护;
  5. 高速逻辑接口:匹配TTL/CMOS等高速逻辑信号切换速度,减少信号失真。

五、产品优势与注意事项

5.1 核心优势

  • 性能均衡:正向压降、反向耐压、开关速度三者匹配,覆盖常规开关二极管多数需求;
  • 可靠性高:长电成熟工艺确保产品一致性,适合批量应用;
  • 成本可控:国产厂商生产,性价比优于部分进口同类产品。

5.2 注意事项

  • 工作电流需控制在200mA以内(直流),避免过流导致功耗超标;
  • 反向电压不可超过150V,防止击穿损坏;
  • 浪涌电流仅为非重复值(1.7A),不可用于持续过流场景;
  • 贴装时需注意SOD-123引脚间距(约0.5mm),避免焊接短路。

综上,BAV20W是一款性价比突出的独立式开关二极管,适合对体积、开关速度、反向特性有要求的中低功率电子设备,在消费电子、通信等领域具备广泛应用价值。

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