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ElecSuper AO3402-ES AO3402
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Elec Super AO3402-ES
- Type
- ELECSUPER
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ELECSUPER
- Electronic Component
- AO3402-ES
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 N
- Type
- N
- Electronic Component
- MOSFET
- Electronic Component
- 0.041g
- Electronic Component
- 1
- Electronic Component
- BM0228786470
- Power Dissipation(Pd)
- 1.4W
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 30V
- Capacitor(Ciss)
- 390pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AO3402-ES — ElecSuper（静芯微）30V N沟道MOSFET 产品概述
一、核心性能
AO3402-ES 是一颗面向小功率开关与电源管理的 N 沟道场效应管，主要电气参数如下：
- 漏源电压 Vdss：30V
- 连续漏极电流 Id：4.2A
- 导通电阻 RDS(on)：40mΩ @ VGS=10V
- 耗散功率 Pd：1.4W（SOT-23 封装）
- 阈值电压 VGS(th)：0.9V @ ID=250μA
- 总栅电荷 Qg：4.4nC @ VGS=10V
- 输入电容 Ciss：390pF；反向传输电容 Crss：41pF；输出电容 Coss：55pF
- 封装：SOT-23
二、主要特性
- 低导通电阻：在充分栅压（10V）下 RDS(on) 仅 40mΩ，适合对导通损耗敏感的低压大电流场景。
- 逻辑可控启动：VGS(th) 约 0.9V，易于配合较低电平驱动，但需注意在 5V 驱动时 RDS(on) 会较 10V 条件下增大，实际设计应基于 Datasheet 的 5V 参数或实测值。
- 适中栅电荷与电容：Qg=4.4nC、Ciss=390pF，开关速度较快且驱动能耗适中，Crss 较小有利于降低米勒效应对开关过渡的影响。
- 小尺寸封装：SOT-23 占板面积小，适合空间受限的便携设备和密集布局电路板。
三、典型应用场景
- 便携式电源开关、负载开关与反向保护电路
- DC-DC 升降压转换器的同步整流或低侧开关
- 电池管理与电源分配模块（PDU）
- 小型电机驱动与功率开关场景
- 常规的信号隔离与功率切换应用
四、封装与热管理
SOT-23 封装便于表贴，但热阻较大，最大耗散功率 Pd=1.4W 是在特定 PCB 热条件下的值。实际应用中建议：
- 在器件下方和相邻铜箔区域做足够的散热铜箔（连接到地或电源平面）；
- 对于持续接近额定电流的应用，进行热仿真或测温验证，避免封装过热导致性能退化或寿命缩短；
- 合理安排过流与过温保护策略。
五、使用建议与注意事项
- 若驱动电压只能到 5V 或更低，应确认在该驱动下的 RDS(on) 并评估功耗；需要低损耗时尽量采用更高栅压或选用低压 RDS(on) 优化器件。
- 开关频率较高时，关注 Qg 与 Ciss 对驱动器的负载以及 Crss 导致的开关损耗。
- 设计 PCB 时确保良好散热路径与可靠焊盘，避免长时间大电流下的热瓶颈。
- 详细的绝对最大额定值（如最大 VGS、瞬态电流能力等）请参阅完整 Datasheet，按手册限制使用。
六、总结
AO3402-ES 提供了在 SOT-23 小封装下较低导通电阻与适中开关特性的平衡，适合空间受限且需兼顾导通损耗与开关性能的中低功率应用。选型与布局时应重点考虑驱动电压、开关频率与散热条件，以发挥该器件的最佳性能。
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