WMSIC Electronic Components

CJ BAV19WS

ModelBAV19WS
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ BAV19WS
Type
CJ
Minimum package
3000

Technical parameters

Electronic Component
CJ
Electronic Component
BAV19WS
Electronic Component
1
Package
SOD-323
Electronic Component
Switch Diode
Electronic Component
0.029g
Electronic Component
1
Electronic Component
BM0264584522
Current
200mA
Diode
Electronic Component
Current(Ir)
100nA@100V
(Vf)
1.25V@200mA
Power Dissipation(Pd)
250mW
Electronic Component
3000
Voltage Rating(Vr)
100V
(Trr)
50ns

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

BAV19WS开关二极管产品概述

一、产品基本定位与核心标识

BAV19WS是江苏长电(CJ)推出的独立式高速开关二极管,采用SOD-323小型表面贴装封装,聚焦中高速开关电路、小信号整流及低功耗电子设备的设计需求。该器件以高开关速度、低反向漏电流为核心优势,适配小型化、高密度PCB布局场景,是消费电子、通信、工业控制等领域的常用分立器件。

二、关键电气参数深度解析

BAV19WS的电气参数直接决定应用边界,核心参数及实际意义如下:

(1)正向特性参数

  • 正向压降(Vf):1.25V@200mA:虽高于普通硅整流二极管(0.7V),但通过高速工艺平衡了开关速度与导通损耗——200mA持续电流下压降稳定,适合小电流开关场景(非大电流整流)。
  • 最大耗散功率(Pd):250mW:由正向压降与电流乘积决定(Pd=1.25V×200mA=250mW),需严格控制持续电流不超200mA,避免过热损坏。

(2)反向特性参数

  • 直流反向耐压(Vr):100V:持续工作的最大反向电压阈值,电路设计需预留安全裕量(如控制在80V以内),防止反向击穿。
  • 反向漏电流(Ir):100nA@100V:反向电压100V时漏电流仅100纳安,漏电流极低,可显著降低静态功耗,适配电池供电的便携设备(如智能穿戴、蓝牙耳机),延长续航。
  • 非重复峰值浪涌电流(Ifsm):2A:单次(非重复)正向瞬态电流耐受能力,可应对电源上电、静电脉冲等浪涌冲击,提升电路可靠性。

(3)开关特性参数

  • 反向恢复时间(Trr):50ns:开关二极管核心指标,指导通→截止的切换时间。50ns属于高速范围,支持10MHz以上开关频率,适配高速数字电路、射频信号处理等场景。

三、封装形式与典型应用场景

(1)SOD-323封装优势

BAV19WS采用SOD-323表面贴装封装,尺寸仅1.6mm(长)×0.8mm(宽)×0.65mm(高),具备:

  • 小型化:适配智能手机、智能手表等便携设备的高密度PCB;
  • 贴装便捷:兼容回流焊、波峰焊工艺,适合自动化生产;
  • 散热性:额定电流范围内可满足散热需求,无需额外散热设计。

(2)典型应用场景

  1. 高速数字电路开关控制:如逻辑门电平转换、时钟信号切换,利用50ns Trr实现快速切换;
  2. 小信号整流:通信设备(路由器、无线模块)射频前端的小信号整流,低漏电流保证信号完整性;
  3. 便携设备辅助电源:蓝牙耳机、智能手环的充电电路或信号整流,低功耗适配电池供电;
  4. 工业控制低功耗电路:PLC、传感器模块的开关控制,耐受一定浪涌冲击。

四、品牌与可靠性保障

BAV19WS由江苏长电(CJ)生产,该品牌是国内半导体行业领先企业,产品通过ISO9001、RoHS等认证,可靠性优势显著:

  • 参数一致性:批量生产中电气参数波动小,电路性能稳定;
  • 环境适应性:工作温度覆盖-55℃~150℃,应对工业级、消费级场景的温度变化;
  • 环保合规:无铅封装,符合欧盟RoHS指令,适配出口及环保要求高的产品。

五、选型与应用注意事项

  1. 参数匹配:持续电流≤200mA、反向电压≤100V、瞬态浪涌≤2A(单次);
  2. 焊接工艺:回流焊峰值温度≤260℃,时间≤30秒,避免热损伤;
  3. 存储条件:存储于-55℃~150℃、湿度≤60%环境,防止受潮;
  4. 限流设计:持续工作时串联限流电阻(如5V电源下,200mA需配20Ω电阻)。

总结

BAV19WS以低漏电流、高开关速度、小型化封装为核心竞争力,适配多领域小电流开关与小信号整流场景。其参数稳定、可靠性高,是小型化电子设备设计的理想选择。

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