WMSIC Electronic Components

NCE NCE3404Y

ModelNCE3404Y
PackageSOT23-3L
BrandNCE
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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
NCE NCE3404Y
Type
NCE
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
NCE
Electronic Component
NCE3404Y
Electronic Component
1
Package
SOT23-3L
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.046g
Electronic Component
1
Electronic Component
BM0228590736
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.4W
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.

NCE3404Y 产品概述

一、产品简介

NCE3404Y 是新洁能(NCE)推出的一款低压大电流 N 沟道场效应管(MOSFET),单颗器件额定 Vdss 为 30V,连续漏极电流 Id 为 5.8A,适用于各种低压开关与功率管理场合。器件采用 SOT23-3L 小封装,额定耗散功率 Pd = 1.4W(须配合 PCB 散热设计),工作温度范围 -55℃ 至 +150℃。

二、主要特点

  • 漏源耐压:30V,适合常见单节锂电池及 12V 系统应用。
  • 低导通电阻:RDS(on) = 40mΩ(在 Vgs = 4.5V、Id = 4A 条件下),导通损耗较小。
  • 中等栅极电荷:Qg = 12.6nC(@15V),利于高速切换但对驱动能力有一定要求。
  • 输入与反向电容:Ciss ≈ 485.8pF,Crss ≈ 54pF,影响开关时的 Miller 效应与 dv/dt 敏感度。
  • 小体积封装:SOT23-3L,便于高密度布板与成本敏感设计。

三、电气参数要点

  • 阈值电压 Vgs(th) ≈ 1.2V:器件为逻辑电平附近触发,但要达到低 RDS(on) 建议 Vgs ≥ 4.5V。
  • RDS(on) 标注值在 4.5V 驱动下测得;若仅由 3.3V MCU 驱动,导通电阻会显著上升,须在设计中验证功耗与温升。
  • 栅极电荷与 Ciss 表明对驱动器电流的需求:以 Qg = 12.6nC 为例,使用 100mA 驱动电流驱动栅极的理论充放电时间约为 126ns;使用 MCU 直驱(典型 20mA)则约 630ns,影响开关损耗。

四、典型应用场景

  • DC-DC 降压开关管(中低功率)
  • 电池保护与电源切换(单节锂电、12V 系统)
  • MOSFET 作为低侧或高侧(借助驱动)开关驱动电机、继电器或 LED 灯串
  • 电源管理与负载断开应用

五、驱动与开关性能建议

  • 若需最低导通损耗,建议提供 ≥4.5V 的门极驱动;对更高速开关或更低损耗可采用外部栅极驱动器。
  • 为抑制振铃与限制 dv/dt,可在栅极与驱动之间并联小电阻(10Ω~100Ω)与必要的 RC 缓冲。
  • 开关感性负载时务必并联合适的续流/箝位二极管或使用吸收网络,避免器件受到高幅值电压瞬变冲击。

六、热管理与封装说明

SOT23-3L 封装体积小、散热能力有限。器件 Pd = 1.4W 为理想条件下的额定值,实际设计中需:

  • 使用较大铜箔散热窗或多层板过孔疏散热量;
  • 对于连续大电流工作,进行热仿真或实际测温验证,必要时降额使用;
  • 注意在高环境温度下按温度系数降额,避免长期热应力。

七、使用注意事项

  • 请以实际板上测量或厂方完整数据表为准,特别是引脚排列与封装机械尺寸;不同封装或批次参数可能略有差异。
  • 避免反复超出 Vdss、Id 峰值和功耗限制;处理开关瞬态时注意 TVS 或 RC 吸收。
  • 对于高可靠性或高频开关应用,建议评估开关损耗、散热路径及电磁兼容(EMC)影响。

八、总结

NCE3404Y 在 SOT23-3L 小封装中提供了 30V/5.8A 的能力与 40mΩ 的低导通电阻(4.5V 驱动),适合中低功率开关、电源管理和电池供电设备。设计时应重视栅极驱动、电磁抑制与 PCB 散热布局,以获得稳定的低损耗与可靠性。如需精确热阻、引脚定义或完整电特性曲线,请参阅厂方完整数据手册。

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