WMSIC Electronic Components

SHIKUES BAV99W

ModelBAV99W
PackageSOT-323
BrandSHIKUES
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
SHIKUES BAV99W
Type
SHIKUES
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SHIKUES
Electronic Component
BAV99W
Electronic Component
1
Package
SOT-323
Electronic Component
Switch Diode
Electronic Component
0.031g
Electronic Component
1
Electronic Component
BM0265580755
Current
150mA
Diode
1
Current(Ir)
2.5uA@75V
(Vf)
1.25V@150mA
Power Dissipation(Pd)
200mW
Electronic Component
65℃~+150℃@(Tj)
Electronic Component
Electronic Component

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

BAV99W开关二极管产品概述

一、产品核心定位与基本特征

BAV99W是SHIKUES(时科)推出的一款高速串联式开关二极管,专为高频信号切换、小电流整流及低损耗开关场景设计。其核心特征围绕「高速、低耗、紧凑」展开:采用1对二极管串联封装,兼顾反向耐压与开关速度;低正向压降减少导通损耗;宽温范围适配严苛环境,是消费电子、通信及汽车电子等领域的高性价比选型。

二、关键电气参数解析

BAV99W的电气参数经过优化,平衡了性能与可靠性,核心参数及实际价值如下:

  • 正向压降(Vf):1.25V@150mA:相比普通开关二极管(通常Vf≥1.5V)更低,导通时能量损耗减少约20%,尤其适合电池供电的便携设备,延长续航时间。
  • 直流反向耐压(Vr):75V:满足中等电压等级的反向过压防护需求,可替代部分高压二极管,无需额外串联防护元件,简化电路设计。
  • 整流电流(If):150mA:额定连续工作电流,适配小电流信号处理(如传感器输出、逻辑电平切换),避免过流损坏。
  • 反向恢复时间(Trr):4ns:高速开关的核心指标,远快于普通整流二极管(Trr≥100ns),可有效减少开关过程中的电磁干扰(EMI),提升电路稳定性,适用于100MHz以上的高频场景。
  • 耗散功率(Pd):200mW:明确最大允许功耗,设计时需结合散热条件(SOT-323封装可通过PCB铜箔辅助散热),避免过热失效。
  • 反向漏电流(Ir):2.5μA@75V:低漏电流保证电路在反向偏置时的低功耗,尤其适合静态电流敏感的低功耗设备(如物联网终端)。
  • 工作结温范围:-65℃~+150℃:覆盖工业级宽温需求,可稳定工作于极端环境(如汽车发动机舱、户外传感器节点)。

三、封装与物理特性

BAV99W采用SOT-323表面贴装封装,是小型化设计的典型选择:

  • 封装尺寸:约1.6mm(长)×0.8mm(宽)×0.6mm(高),相比传统DO-35封装体积缩小70%以上,可大幅提升PCB板的集成密度,适配智能手机、智能手表等便携设备的紧凑空间。
  • 引脚配置:2引脚封装(实际为1对串联二极管的公共端与两端引脚),焊接简单,兼容自动化贴装产线,降低生产难度。
  • 封装材料:采用耐高温环氧树脂,耐湿、耐机械冲击,符合RoHS环保标准,满足绿色制造需求。

四、典型应用场景

BAV99W的参数特性使其广泛适用于以下场景:

  1. 通信设备:射频前端的信号切换、调制解调电路的逻辑电平转换,利用其4ns反向恢复时间减少信号失真;
  2. 消费电子:智能手机的电源路径管理(如充电与放电切换)、智能手环的传感器信号整流,低Vf提升电池效率;
  3. 汽车电子:车载传感器(如胎压监测、温度传感器)的信号处理电路,宽温范围适配发动机舱的高温环境;
  4. 工业控制:PLC输入输出模块的信号隔离、小型电机的驱动辅助电路,75V反向耐压满足工业电压波动需求;
  5. 计算机外设:键盘、鼠标的按键信号切换,小体积适配外设的紧凑设计。

五、选型与使用注意事项

为确保BAV99W的稳定工作,需注意以下要点:

  1. 参数限制:连续工作电流不超过150mA,反向电压不超过75V,结温不超过150℃,避免过载;
  2. 焊接工艺:回流焊温度需控制在260℃以内(持续时间≤30秒),手工焊接温度≤350℃(持续时间≤3秒),防止封装损坏;
  3. 静电防护:二极管对静电敏感,存储与焊接时需采用防静电措施(如防静电袋、接地工作台);
  4. 串联配置利用:1对串联二极管可实现双向开关功能(若为背对背串联),或提升反向耐压(若为同向串联),需根据电路需求选择连接方式;
  5. 散热设计:SOT-323封装散热能力有限,若工作电流接近150mA,需在PCB上增加散热铜箔(建议面积≥10mm²)。

BAV99W凭借高速开关、低损耗、紧凑封装及宽温特性,成为小电流高速开关场景的高性价比器件,可满足多领域的设计需求。

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