WMSIC Electronic Components

NCE NCE0125AK

ModelNCE0125AK
PackageTO-252
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
NCE NCE0125AK
Type
NCE
Unit
Electronic Component
Minimum package
2500 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
NCE
Electronic Component
NCE0125AK
Electronic Component
1
Package
TO-252
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.522g
Electronic Component
1
Electronic Component
BM0264368770
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
70W
Electronic Component
Electronic Component
Electronic Component
2500

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

NCE0125AK 产品概述

一、产品简介

NCE0125AK 是新洁能(NCE)推出的一款 N 沟增强型功率 MOSFET,适用于中高压开关与功率管理场合。器件额定漏源电压为 100V,连续漏极电流 25A,导通电阻在 VGS=3V 时为 38mΩ(典型),额定耗散功率 70W(封装与散热条件相关)。封装采用 TO-252(DPAK),适合表面贴装与中等功率的散热布局。器件工作温度范围宽(-55°C ~ +175°C),对工业级应用友好。

二、主要电气参数

  • 类型:N 沟道功率 MOSFET
  • Vdss(漏源耐压):100 V
  • Id(连续漏极电流):25 A
  • RDS(on)(导通电阻):38 mΩ @ VGS = 3 V
  • Pd(耗散功率):70 W(额定值,具体受 PCB/散热影响)
  • VGS(th)(阈值电压):1.6 V(典型)
  • Qg(总栅极电荷):70.4 nC @ VGS = 10 V(切换损耗相关)
  • Ciss(输入电容):3 nF
  • Crss(逆传输电容,Miller):18.3 pF
  • 工作温度范围:-55℃ ~ +175℃
  • 封装:TO-252(DPAK)

三、封装与引脚(典型)

TO-252(DPAK)常用于中等功率表面贴装场合。典型引脚排列(建议以厂商规格书为准):

  • 引脚1:G(栅极)
  • 引脚2:D(漏极,通常与散热金属舌/散热片连接)
  • 引脚3:S(源极)
  • 散热片/大金属舌:与漏极连接

在实际设计中请以 NCE 官方数据手册为准,防止因封装变体引起接线错误。

四、关键特性与设计考量

  • 低压驱动特性:RDS(on) 在 VGS = 3V 时为 38 mΩ,表明器件具有一定的“低压驱动”能力,适配 3.3V 或 5V 的驱动逻辑用于导通。但在高效率或高电流场合,建议使用更高的门驱电压(如 8–10V)以降低导通损耗(需参考最大 VGS 限值)。
  • 栅极电荷与开关损耗:Qg = 70.4 nC(10V)属于中等偏高水平,切换频率较高时栅极驱动损耗和开关损耗不可忽视,应评估驱动器能力并可能采用合理的栅阻或缓升/缓降策略以兼顾 EMI 与损耗。
  • Miller 效应:Crss = 18.3 pF,对开关瞬态有一定影响,快速切换时需防止误触发或振荡,常配合阻尼电阻与良好布局来控制。
  • Ciss = 3 nF 指示驱动回路的负载能力要求,驱动器需能提供相应瞬态电流以快速充放电栅极。

五、热管理与可靠性

  • 虽标称 Pd = 70 W,但这是基于一定的温度与散热条件(通常以良好散热、铜箔面积或散热器计算)。裸片/PCB 实际可耗散功率远低于该值,设计时应计算 RθJA / RθJC 并进行热仿真。
  • 建议使用大面积铜箔(多层过孔热通道)或外接散热片以降低结-外界温升。关键回路处使用低阻抗的电源平面并优化热过孔布局。
  • 工作温度范围宽,适用于严苛环境,但长期可靠性还应考虑热循环、工艺焊接温度(回流)以及 ESD 防护。

六、典型应用场景

  • 100V 级别的开关电源(中功率 DC-DC、降压拓扑)
  • 电机驱动(半桥/全桥低压侧或中间级)
  • 非隔离电源、负载开关、逆变器辅助开关
  • 电池管理与保护模块(需结合 SOA 与浪涌保护)

七、选型建议与注意事项

  • 如果系统驱动电压仅为 3.3V 且电流需求较大,NCE0125AK 提供了可接受的导通电阻;但为获得更低导通损耗,考虑使用 8–10V 驱动(在器件允许的 VGS 范围内)。
  • 在高开关频率应用中,需重点评估 Qg 导致的驱动损耗与 Crss 引发的开关翻转损耗。
  • 在功率循环或浪涌场景下,查看器件的 SOA、脉冲耐受能力与反向恢复特性(参考完整数据手册)。
  • 始终参照 NCE 官方规格书获取绝对最大额定值、典型热阻、引脚图和推荐焊接曲线。

八、结论

NCE0125AK 是一款面向 100V 等级的通用 N 沟道功率 MOSFET,具有较低的 3V 导通电阻和适中的栅极电荷,适用于多种中等功率开关应用。设计时需平衡导通损耗与开关损耗、并重视散热和 PCB 布局,必要时参考完整数据手册以确保安全与长期可靠性。若需更详细的电气参数、热阻与典型应用电路,请提供或查阅 NCE 官方数据手册。

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