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Hottech BAV21WS
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech BAV21WS
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- BAV21WS
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Switch Diode
- Electronic Component
- 0.029g
- Electronic Component
- 1
- Electronic Component
- BM0264463940
- Current
- 200mA
- Diode
- Electronic Component
- Current(Ir)
- 100nA@200V
- (Vf)
- 1V@100mA
- Power Dissipation(Pd)
- 250mW
- 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.
BAV21WS 开关二极管（SOD-323）产品概述
一、产品简介
BAV21WS 是 Hottech（合科泰）出品的独立式开关二极管，采用 SOD-323 小封装，专为高电压、低电流开关与整流场合设计。器件体积小、开关速度快、反向漏电低，适合空间受限且需高耐压的电子产品。
二、主要特性
- 独立式单只二极管，便于点对点布线与并联部署
- 直流整流电流（IF）：200 mA（连续）
- 耐压（VR）：200 V，适合中高压隔离与保护场景
- 正向压降（Vf）：典型 1.0 V @ 100 mA，最高可达 1.25 V @ 200 mA
- 非重复峰值浪涌电流（IFSM）：2 A（短时）
- 反向电流（IR）：约 100 nA @ 200 V（低漏电）
- 反向恢复时间（Trr）：约 50 ns，具备良好开关特性
- 耗散功率（Pd）：250 mW，需注意散热与功率限流
三、关键电气参数说明
- Vr=200 V 提供良好电压裕量，适用于开关电源次级、信号钳位与高压检测电路。
- Vf 在较大电流下仍保持在可控范围，利于降低开关损耗。
- 50 ns 的反向恢复时间确保在高频开关时刻不会产生过多的反向恢复电流，提升系统抗干扰能力。
- Pd 仅 250 mW，实际使用时应采用电流与占空比降额策略，或通过 PCB 散热改善热阻。
四、封装与热管理
SOD-323 小体积封装适合密集贴片PCB，但散热能力有限。建议：
- 在器件引脚下方或附近留足铜箔，用热铜带或散热过孔改善散热。
- 对于连续 100 mA 以上工作，进行热仿真并按厂家建议的最大结温限值降额使用。
- 焊接按回流曲线执行，避免超温损伤封装与内部结晶结构。
五、典型应用
- 高压脉冲与开关电路中的快速整流与钳位
- 通信设备的高压保护与信号整形
- 小功率开关电源辅助整流与检测电路
- 工业控制与消费电子中需要高耐压、低漏电的场合
六、选型与设计注意事项
- 请在最终设计前参照厂方完整版数据手册确认环境温度、结温范围与焊接规格。
- 对于长期高电流或高占空比的应用，应选用热性能更佳的封装或并联分担电流。
- 进货检验建议测试 Vf、IR 与耐压，以保证批次一致性。
- 若需更高浪涌能力或更低正向压降，可考虑与供应商沟通替代型号或增强版器件。
如需完整电气特性曲线、封装尺寸图或回流焊接建议，可提供具体设计要求，我可协助查找或解读对应数据手册。
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