WMSIC Electronic Components

HL 20N03

Model20N03
PackageTO-252
BrandHL
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

19 specifications

Core information

Product name
HL 20N03
Type
HL
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HL
Electronic Component
20N03
Electronic Component
1
Package
TO-252
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.481g
Electronic Component
1
Electronic Component
BM0265676884
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
5.5W
Electronic Component
Electronic Component
Electronic Component
2500
Voltage(Vdss)
30V

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

HL富海微20N03 N沟道MOSFET产品概述

HL富海微20N03是一款专为低压大电流场景优化的N沟道增强型MOSFET,采用TO-252贴片封装,具备低导通损耗、高电流容量、宽温度适应等核心优势,可广泛应用于工业控制、消费电子、电池管理等领域的低压功率电路中。

一、核心特性与定位

20N03的设计定位为低压中小功率MOSFET,核心特性可总结为:

  • 覆盖12V/24V典型低压系统的电压需求(Vdss=30V);
  • 支持20A连续漏极电流,满足中等功率负载的稳定驱动;
  • 低导通电阻(15mΩ@10V Vgs)大幅降低导通损耗,减少发热;
  • 栅极电荷低(10nC@10V),开关速度快,适配高频应用;
  • 宽工作温度范围(-55℃~+175℃),适应极端环境;
  • 紧凑TO-252封装,兼顾散热与PCB布局空间。

二、关键电气参数解析

1. 电压与电流基础参数

  • 漏源击穿电压(Vdss=30V):满足12V、24V低压系统的安全余量需求,避免过压击穿风险;
  • 连续漏极电流(Id=20A):25℃环境下可稳定输出20A连续电流,若配合散热设计(如PCB铜箔),功率承载能力可进一步提升;
  • 阈值电压(Vgs(th)=1.5V@250uA):低阈值电压使器件可被3.3V、5V单片机直接驱动,无需额外电平转换电路,简化系统设计。

2. 损耗与开关性能参数

  • 导通电阻(RDS(on)=15mΩ@10V):核心优势之一,导通损耗P=I²×RDS(on),20A电流下损耗仅约6W(接近器件最大耗散功率,结合散热可稳定工作),相比同类产品(18mΩ~20mΩ)损耗降低15%以上;
  • 栅极电荷量(Qg=10nC@10V):低栅极电荷意味着开关驱动能量少、速度快,适合100kHz以上的高频DC-DC转换场景;
  • 电容参数:输入电容Ciss=490pF、反向传输电容Crss=61pF、输出电容Coss=79pF,其中低Crss可减少米勒效应,提升开关稳定性,避免误触发。

3. 功率与温度可靠性参数

  • 耗散功率(Pd=5.5W):25℃环境下最大允许5.5W损耗,若在源极引脚周围铺设10mm×10mm以上铜箔散热,可有效降低结温,延长使用寿命;
  • 工作温度范围:-55℃+175℃宽温,覆盖工业级(-40℃+85℃)、部分汽车级(-40℃~+150℃)场景,适用于户外、高温设备。

三、封装与物理特性

20N03采用TO-252贴片封装(DPAK),物理特性如下:

  • 封装尺寸:长6.5mm×宽4.4mm×高1.6mm,占板面积小,适合小型化产品;
  • 引脚定义:标准TO-252引脚为「漏极(D)、源极1(S1)、源极2(S2)、栅极(G)」,双源极设计分散电流路径,降低导通电阻+提升散热效率;
  • 环保特性:采用RoHS-compliant耐高温塑料封装,支持无铅焊接。

四、典型应用场景

结合参数特性,20N03典型应用包括:

  1. 低压DC-DC转换器:12V转5V/20A、24V转12V/10A同步整流电路,低RDS(on)使转换效率达95%以上;
  2. 电池管理系统(BMS):电动工具、便携式储能的充放电开关,宽温适应户外环境;
  3. 负载开关:服务器、工业控制中的12V负载切换,大电流满足多负载并联;
  4. 小功率电机驱动:直流风扇、步进电机驱动,低Qg实现快速开关调速;
  5. 电源适配器:≤60W低功率适配器的同步整流管,降低待机损耗,提升能效等级。

五、设计注意事项

  1. 栅极驱动:Vgs控制在4V10V,避免超20V(栅极最大耐压),串联10Ω100Ω电阻抑制振铃;
  2. 散热设计:源极需连接≥20mm²铜箔,或加装小型散热片,避免结温超175℃;
  3. ESD防护:栅极对静电敏感,需增加TVS管/ESD二极管,防止静电损坏;
  4. 高频应用:>200kHz场景需缩短功率路径布线,抑制寄生电感影响。

总结

HL富海微20N03是高性价比低压大电流MOSFET,凭借低损耗、宽温、紧凑封装等优势,满足工业、消费电子低压功率需求。其易驱动、低损耗特性简化系统设计、提升能效,是中小功率电路的理想选择。

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