Model & package intelligence
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YANGJIE BAV21WSQ
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
13
specifications
Core information
- Product name
- YANGJIE BAV21WSQ
- Type
- SOD-323(SC-90)
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YANGJIE
- Electronic Component
- BAV21WSQ
- Electronic Component
- 1
- Package
- SOD-323(SC-90)
- Electronic Component
- 0.031g
- Electronic Component
- 1
- Electronic Component
- BM0230875400
- 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.
BAV21WSQ 产品概述
一、概述
BAV21WSQ 是扬杰（YANGJIE）推出的一款小信号开关二极管，采用紧凑的 SOD-323（SC-90）独立式封装。器件面向需要中等反向耐压与快速开关响应的低功耗电子电路，适用于高压小电流整流、开关、钳位与信号路由等场合。器件特性兼顾耐压与速度，便于在体积受限的消费与工业终端应用中使用。
二、主要电气参数
- 正向压降 (Vf)：1.25 V @ If = 200 mA
- 直流反向耐压 (Vr)：250 V
- 最大整流电流：200 mA（DC）
- 功耗耗散 (Pd)：250 mW
- 反向电流 (Ir)：100 nA @ Vr = 200 V
- 反向恢复时间 (Trr)：50 ns
- 非重复峰值冲击电流 (Ifsm)：1.7 A（单次浪涌）
- 封装：SOD-323 (SC-90)，独立式封装
三、关键特性与优势
- 高反向耐压：250 V 的反向耐压使其适合高电压小信号场景，能承受较大直流偏置。
- 低反向漏流：在 200 V 时 Ir 仅 100 nA，利于高阻和高精度测量电路，降低漏泄引起的误差。
- 中等开关速度：50 ns 的反向恢复时间适合一般开关电源、脉冲控制与高速信号整形，但不属于超高速恢复系列。
- 小型封装：SOD-323 体积小、适合贴片装配，利于高密度布局与自动化生产。
- 耐浪涌能力：1.7 A 的单次峰值允许短时冲击电流，增强系统对瞬态事件的容忍性。
四、典型应用场景
- 开关电源的辅助整流与钳位电路
- 交流/直流信号切换与保护电路
- 高压小电流整流、偏置与电平移位
- 通信与测试仪器中的快速开关与隔离
- 便携式与消费电子中体积受限的电路板
五、使用建议与注意事项
- 功耗与散热：器件 Pd 为 250 mW，SOD-323 热阻较大，连续 200 mA 工作时需注意结温上升，建议在 PCB 上提供足够铜箔散热或降额使用。
- 工作电流与降额：为延长寿命并确保可靠工作，建议常态工作电流低于额定整流电流并适当留有裕量，避免长期在极限条件下运行。
- 浪涌与保护：若电路中可能出现较大瞬态电流，建议搭配限流或吸收器件（如保险丝、TVS）以保护二极管不被反复冲击。
- 布局注意：靠近热源或大电流路径布置时应考虑热耦合，焊盘与走线应保证良好散热与可靠焊接。
六、可靠性与选型参考
BAV21WSQ 适合需要高反向耐压、低漏流且对切换速度有中等要求的场合。若需更快的恢复时间或更低的正向压降/更大电流承载能力，可考虑替代型号或更大封装。采购时关注批次与封装完整性，尤其是贴片小封装在回流焊工艺中的可靠性验证。
七、包装与品牌信息
品牌：YANGJIE（扬杰）。封装：SOD-323（SC-90）。适合自动贴装与回流焊流程。如需样片或器件数据表，可向供应商索取完整规格书以便电路验证与可靠性评估。
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