Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
AO3401A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YONGYUTAI AO3401A
- Type
- YONGYUTAI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YONGYUTAI
- Electronic Component
- AO3401A
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 P
- Type
- P
- Electronic Component
- MOSFET
- Electronic Component
- 0.034g
- Electronic Component
- 1
- Electronic Component
- BM0264770665
- Operating Temperature
- 55℃~+150℃
- Gate Voltage(Vgs)
- ±12V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 30V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AO3401A（YONGYUTAI）产品概述
一、产品简介
AO3401A 是永裕泰（YONGYUTAI）生产的一款 P 沟道增强型 MOSFET，SOT-23 封装，适用于高侧开关、小功率电源管理与便携设备保护电路。器件额定漏源电压为 30V，工作温度范围宽（-55℃ 至 +150℃），兼顾耐压与可靠性。
二、主要技术参数
- 类型：P 沟道 MOSFET（增强型）
- Vdss：30V
- 连续漏极电流 Id：4A（理想条件下，受封装散热限制）
- 导通电阻 RDS(on)：45mΩ @ Vgs = 10V（典型）
- 阈值电压 Vgs(th)：约 0.9V（标称值，P 沟道为负向阈值，通常表示为 |Vgs(th)|）
- 总栅极电荷 Qg：6.5nC
- 输入电容 Ciss：553pF；反向传输电容 Crss：35pF；输出电容 Coss：57pF
- 最大栅极电压：±12V
- 封装：SOT-23
三、典型应用场景
- 高侧电源开关与负载切换（12V 或更低电压系统）
- 电源路径管理与反向电流保护（利用体二极管）
- 电池供电设备的断电保护、外设开关控制
- 需要小封装、较低导通损耗的便携式电源设计
四、使用要点与设计建议
- 栅极驱动：P 沟道需使 Vgs 变负以导通，充分导通通常需要接近 -8 ~ -10V 的 Vgs；注意器件额定 ±12V 上下限。
- 开关损耗与驱动电流：Qg=6.5nC，若开关频率为 100kHz，则平均驱动电流 I = Qg·f ≈ 0.65mA，峰值电流取决于驱动器能力与电阻。
- 热设计：SOT-23 封装散热受限，4A 连续电流在实际 PCB 上会产生显著发热（例如 4A^2·45mΩ ≈ 0.72W），建议使用加宽铜箔、散热过孔并限制实际持续电流或进行热仿真。
- 抗干扰：输入电容和 Crss 会造成米勒效应，快速切换时容易振荡，推荐在门极与栅极之间并联 10–100Ω 阻尼并部署合适的旁路电容。
- ESD 与保护：门极对静电敏感，实际电路中可增加栅极电阻和 TVS 保护以提高可靠性。
五、封装与可靠性
SOT-23 小封装适合空间受限设计，但热阻较高，长期大电流工作需注意热沉和 PCB 散热布局；工作温度范围 -55℃ 至 +150℃ 满足大多数工业与消费类应用。
六、典型电路参考
- 高侧开关：将 AO3401A 作为 P 沟道高侧场效应管，源接电源、漏接负载，通过拉低门极实现导通；
- 反向电流阻断：利用体二极管配合 MOSFET 本体实现低损耗方向控制（需注意关断瞬态与二极管恢复）。
总结：AO3401A 在中低功率高侧开关与电源管理场合表现良好，关键在于合理的栅极驱动与热设计，以发挥其低 RDS(on) 与小体积优势。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
