Model & package intelligence
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UTC UT3404G-AE3-R UT3404G
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UTC UT3404G-AE3-R
- Type
- UTC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- UTC
- Electronic Component
- UT3404G-AE3-R
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 N
- Type
- N
- Electronic Component
- MOSFET
- Electronic Component
- 0.036g
- Electronic Component
- 1
- Electronic Component
- BM0226338219
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 30V
- Capacitor(Ciss)
- 820pF
- Output Capacitor(Coss)
- 102pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
UT3404G-AE3-R 产品概述
一、产品简介
UT3404G-AE3-R 是友顺（UTC）推出的一款小功率 N 沟增强型场效应管（MOSFET），额定漏源电压为 30V，连续漏极电流 5.8A，封装为常见的 SOT-23 形态，器件功耗标称约 1.4W。该管适合用于空间受限、成本敏感且需要较低导通电阻的开关与功率管理场合。
二、主要参数与特性
- 类型：N 沟增强型 MOSFET，单管（1 个 N 沟）
- 漏源电压 Vdss：30V
- 连续漏极电流 Id：5.8A（封装与散热受限时需按数据手册降额）
- 导通电阻 RDS(on)：22.5 mΩ @ Vgs=10V；34.5 mΩ @ Vgs=4.5V
- 阈值电压 Vgs(th)：3V（典型）
- 总栅电荷 Qg：17 nC @ Vgs=10V（用于估算开关损耗与驱动要求）
- 输入电容 Ciss：820 pF @ 15V
- 输出电容 Coss：102 pF
- 反向传输电容 Crss（Miller）：77 pF @ 15V
- 封装：SOT-23
- 品牌：UTC（友顺）
这些参数表明在 10V 驱动下可获得较低的导通损耗；在逻辑电平（4.5V）下仍有可接受的导通电阻，适合多数 5V 或 12V 系统的低侧开关或功率路径控制。
三、典型应用场景
- 逻辑电平功率开关、低压负载断接
- DC-DC 降压转换器中的同步或补偿开关（中低功率）
- 电源管理、开机/关断控制、反向电流防护
- 便携设备、机顶盒、家电及工业控制中的开关与保护电路
四、设计与使用注意事项
- 门极驱动：若追求最低导通电阻，建议 Vgs≈10V 驱动；若仅有 5V/4.5V 驱动，器件仍可工作但 RDS(on) 增大，需注意导通损耗。
- 开关损耗：Qg=17nC 在高频切换时会带来可观的驱动损耗，应评估驱动器峰值电流与功耗，必要时加大驱动能力或降低开关频率。
- Miller 效应：Crss=77pF 表明在快速边沿切换时容易产生额外耦合，可能导致 dv/dt 触发或延迟切换，建议在门极串联合适电阻进行阻尼。
- 热管理：SOT-23 封装散热能力有限，连续大电流时应通过 PCB 铜箔散热、加大焊盘和热释散线路径，并按环境温度对额定电流降额。
- 极限参数：工作电压不能超过 30V，使用时留有裕量以避免瞬态击穿；注意 ESD 防护与焊接工艺参数，防止器件损坏。
五、封装与采购
UT3404G-AE3-R 提供 SOT-23 小封装，便于自动贴装与空间受限电路板。选型时请参考厂商完整的数据手册获取温度特性曲线、SOA、包封机械图与焊接建议，以确保设计可靠性与合规性。
总体而言，UT3404G-AE3-R 在体积、成本与性能之间取得了平衡，适合用于中低功率开关与电源管理场景。设计时重点关注驱动电压、开关频率与 PCB 散热以发挥器件最佳性能。
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