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YONGYUTAI BAV99
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YONGYUTAI BAV99
- Type
- YONGYUTAI
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YONGYUTAI
- Electronic Component
- BAV99
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Switch Diode
- Electronic Component
- 0.033g
- Electronic Component
- 1
- Electronic Component
- BM0264770668
- Current
- 200mA
- Diode
- 1
- Current(Ir)
- 2.5uA@70V
- (Vf)
- 1.25V@150mA
- Power Dissipation(Pd)
- 225mW
- 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.
BAV99（永裕泰 YONGYUTAI）产品概述
一、产品简介
BAV99（永裕泰品牌，封装 SOT-23）是一款双只串联式开关二极管，针对高速开关和小信号整流场合优化设计。单对串联结构、70V 反向耐压与较快的反向恢复时间，使其在信号整形、钳位、隔离和保护电路中具有良好性价比与可靠性。
二、主要参数亮点
- 直流反向耐压（Vr）：70V，适合中低电压开关与保护用途。
- 整流电流：200mA（连续），适用于小功率整流和驱动。
- 正向压降（Vf）：1.25V @ 150mA，低压降有利于减小功耗。
- 非重复峰值浪涌电流（Ifsm）：500mA，能承受短时冲击电流。
- 反向电流（Ir）：2.5μA @ 70V，漏电小，适合高阻抗或精密电路。
- 反向恢复时间（Trr）：6ns，响应快，适合高速开关应用。
- 耗散功率（Pd）：225mW，SOT-23 封装下的热耗散需注意散热管理。
三、典型应用场景
- 高速开关与数字信号切换：Trr = 6ns，适合逻辑电平切换与门电路防反向。
- 信号钳位与夹断保护：串联结构便于实现高压钳位或两级钳位设计。
- 小功率整流与电平移位：200mA 的连续电流能力适配多数小功率电源模块。
- 测试与测量前端：低漏电与低正向压降保证信号完整性。
四、电气与热性能说明
SOT-23 小封装限制了耗散功率（Pd = 225mW），建议在实际设计中进行功率降额使用并搭配合理的 PCB 散热措施（加大铜箔、短走线、靠近地/热垫）。反向漏电随温度上升而增加，长期在高 Vr 下工作需评估温度对 Ir 的影响。Ifsm 为短时冲击能力，避免长期置于接近峰值的脉冲环境。
五、封装与安装建议
SOT-23 小型封装便于高密度 PCB 布局，焊接兼容常见回流工艺。布局建议：缩短电流回路、靠近被保护器件放置并提供足够的铜箔散热区。焊接时按无铅回流曲线控制温度与时间，避免过热引起封装应力。
六、选型与使用注意事项
- 若工作电流或功耗接近额定值，应选择更大封装或并联器件以提升热能力。
- 若频繁承受大幅度反向与正向切换，关注 Trr 与电容寄生对信号完整性的影响。
- 高频或射频路径使用时，建议评估结电容与寄生电感对带宽的影响。
- 采购时确认永裕泰（YONGYUTAI）生产批次与质量检测报告，关注封装与标识一致性。
七、总结
永裕泰 BAV99（SOT-23）是一款面向高速开关与小信号整流的双串联开关二极管，凭借 70V 耐压、6ns 反向恢复与低漏电特性，适合多种信号处理与保护场景。在设计时需重视封装热耗散与浪涌保护，合理退让额定参数可以显著提升可靠性。若需更高电流或更强热性能，建议考虑更大封装或并联使用。
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