WMSIC Electronic Components

MDD AO3402

ModelAO3402
PackageSOT-23
BrandMDD
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Option 138080

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
MDD AO3402
Type
MDD
Minimum package
3000

Technical parameters

Electronic Component
MDD
Electronic Component
AO3402
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0265966682
Operating Temperature
50℃~+150℃
Power Dissipation(Pd)
1.5W
Electronic Component
3000
Voltage(Vdss)
30V
Capacitor(Ciss)
240pF
Gate (Qg)
3.1nC@15V
Resistor(RDS(on))
28mΩ@10V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

AO3402 N沟道MOSFET产品概述

AO3402是MDD品牌推出的一款小封装、低功耗N沟道MOSFET,专为低电压(≤30V)、中小电流(≤5A)场景设计,凭借紧凑的SOT-23封装和优异的电气性能,广泛应用于便携电子、小型电机驱动等领域,是平衡效率与空间的高性价比器件。

一、产品基本定位

AO3402为单N沟道功率MOSFET,采用行业通用的SOT-23表面贴装封装(典型尺寸约2.9mm×2.5mm×1.1mm),主打小体积、易驱动、低损耗三大核心特性,覆盖消费电子、工业辅助电路等多场景需求,工作温度范围为-50℃至+150℃,适配 harsh环境下的稳定运行。

二、关键电气参数详解

AO3402的参数设计聚焦“效率与控制”平衡,核心指标如下:

  1. 电压电流承载:漏源最大额定电压(Vdss)30V,满足多数低电压直流电路;连续漏极电流(Id)5A,可稳定驱动中小功率负载(如小型电机、LED阵列)。
  2. 低导通损耗:当栅源电压(Vgs)为10V时,导通电阻(RDS(on))仅28mΩ——这意味着导通时压降小、发热低,能显著提升电路整体效率。
  3. 栅极控制优势:
    • 栅极电荷量(Qg)3.1nC(Vgs=15V):小电荷量使开关速度更快,适合高频应用(如DC-DC同步整流);
    • 输入电容(Ciss)240pF、反向传输电容(Crss)30pF:低电容值减少开关损耗;
    • 阈值电压(Vgs(th))800mV:可被3.3V、5V等常见逻辑电平直接驱动,无需额外电平转换电路,简化设计。
  4. 功率限制:最大耗散功率(Pd)1.5W,结合SOT-23封装的散热能力,多数场景无需额外散热片即可稳定工作。

三、封装与散热特性

SOT-23封装的体积优势是AO3402的核心亮点之一,适合便携设备(如智能手表、无线耳机)的高密度PCB布局。虽然封装紧凑,但低RDS(on)和合理的Id限制,使得实际应用中:

  • 连续电流≤5A时,仅需PCB铜箔散热即可满足需求;
  • 若需短暂峰值电流(如电机启动瞬间),可通过增加PCB铜箔面积优化散热。

四、典型应用场景

AO3402的性能适配多种低电压场景,常见应用包括:

  1. 便携电子电源管理:智能手机、智能手环的电池充放电控制、负载开关(如传感器供电通断);
  2. 小型电机驱动:玩具电机、微型直流风扇、小型水泵的驱动电路;
  3. 电源转换电路:DC-DC转换器的同步整流管、线性稳压器的扩展输出;
  4. 低功耗负载开关:LED背光控制、小型继电器驱动;
  5. 工业辅助电路:信号调理模块的开关元件、小型电磁阀驱动。

五、性能优势总结

AO3402的核心竞争力体现在:

  • 效率双优:低导通电阻(28mΩ)降低导通损耗,小栅极电荷(3.1nC)减少开关损耗;
  • 易驱动性:800mV阈值电压适配主流逻辑电平,无需电平转换;
  • 空间友好:SOT-23封装节省PCB面积,支持产品小型化;
  • 宽温可靠:-50℃~+150℃范围满足工业级与消费级双重需求;
  • 成本可控:成熟工艺与小封装降低了器件及电路设计成本。

六、使用注意事项

  1. 栅源电压(Vgs)需控制在≤20V(推荐驱动电压3.3V~15V),避免过压损坏;
  2. 连续漏极电流(Id)不得超过5A,峰值电流需结合散热条件评估;
  3. 焊接采用SOT-23标准温度曲线(≤260℃,时长≤10秒),避免热损伤;
  4. 存储运输需防静电,建议使用防静电包装与工作台。

AO3402凭借平衡的性能与紧凑的封装,成为低电压中小功率场景的“实用型器件”,可有效简化电路设计、降低产品成本,是消费电子与工业辅助电路的优选之一。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

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.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

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.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.