WMSIC Electronic Components

CJ CJAB25N04S

ModelCJAB25N04S
PackagePDFNWB-8L(3.3x3.3)
BrandCJ
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

19 specifications

Core information

Product name
CJ CJAB25N04S
Type
CJ
Minimum package
5000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
CJAB25N04S
Electronic Component
1
Package
PDFNWB-8L(3.3x3.3)
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.116g
Electronic Component
1
Electronic Component
BM0264603592
Operating Temperature
40℃~+150℃
Power Dissipation(Pd)
3W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
40V
Capacitor(Ciss)
1.2nF

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

CJAB25N04S N沟道MOSFET产品概述

CJAB25N04S是江苏长电科技(CJ)推出的低导通电阻、高电流密度N沟道增强型MOSFET,针对中小功率高密度应用场景优化设计,兼具宽温度范围、小封装尺寸与高性价比特性,可满足便携电子、电源管理、工业控制等领域的核心需求。

一、产品基本定位

该器件属于长电科技中低压MOSFET产品线,聚焦40V耐压、25A连续电流的中等功率区间,通过低导通电阻与紧凑封装的平衡,解决传统同规格器件在“小体积”与“低损耗”之间的矛盾,适合对PCB空间敏感、需控制发热的应用场景。

二、核心电气参数深度解析

1. 电压与电流能力

  • 漏源击穿电压(Vdss):40V,满足单节/多节锂电池组(最大4串16.8V)、低电压DC电源等场景的耐压需求,留有充足余量;
  • 连续漏极电流(Id):25A(@25℃),是器件长期稳定工作的核心指标,可支撑中等功率负载(如小型电机、大电流DC-DC)的持续运行;
  • 脉冲漏极电流(Idp):未明确标注但通常可达到连续电流的2~3倍(如50A以上),满足瞬时大电流需求(如电机启动、电池快充)。

2. 导通损耗特性

  • 导通电阻(RDS(on)):9.4mΩ(@Vgs=10V),属于同封装同规格中的低水平——导通损耗与电流平方成正比(P=I²·RDS(on)),25A时导通损耗仅约5.88W(理论值),可有效降低器件发热,减少散热设计成本。

3. 栅极与开关特性

  • 阈值电压(Vgs(th)):1V(@Id=250μA),低阈值设计使其可被3.3V/5V微控制器直接驱动,无需额外电平转换电路,简化系统设计;
  • 栅极总电荷(Qg):20.3nC(@Vgs=10V),处于同类型器件的适中范围——既保证一定的开关速度(减少开关损耗),又避免过高Qg导致的EMI(电磁干扰)问题;
  • 输入/反向传输电容:Ciss=1.2nF(@Vds=25V)、Crss=58pF(@Vds=25V),电容值稳定,有助于控制开关过程中的电压/电流过冲。

4. 功率与温度范围

  • 耗散功率(Pd):3W(@Tcase=25℃),结合PDFNWB封装的低热阻特性,可支撑器件在实际应用中的功率需求;
  • 工作温度范围:-40℃~+150℃,覆盖工业级与消费级应用的温度场景,可在低温环境(如户外设备)与高温环境(如密闭机箱)中稳定工作。

三、封装与散热设计

CJAB25N04S采用PDFNWB-8L(3.3×3.3mm)封装,属于无铅无卤的小型化封装:

  • 尺寸优势:3.3×3.3mm的紧凑尺寸,相比传统TO-252等封装节省约70%的PCB面积,适合便携设备(如移动电源、智能手表)的高密度布局;
  • 散热特性:PDFNWB封装通过优化引脚设计与热界面,降低热阻(典型θja<50℃/W),可将器件产生的热量快速传导至PCB,配合少量散热贴即可满足散热需求;
  • 可靠性:封装符合AEC-Q101等可靠性标准,可抵御机械应力与环境老化,提升产品寿命。

四、典型应用场景

该器件的特性使其适配以下核心场景:

  1. 便携电子电源:移动电源(大电流充放电)、无线充电器(低损耗减少发热)、智能穿戴设备(小封装节省空间);
  2. 中小功率DC-DC转换器:降压电路(如12V转5V/3A)、升压电路(如3.7V转12V/2A),高电流密度适合紧凑电源模块;
  3. 电池保护电路:锂电池组(4串以内)的过充/过放保护,25A电流支撑大电流放电,40V耐压满足电压波动;
  4. 小型电机驱动:无刷直流电机(BLDC)的H桥驱动端、小型伺服电机的控制级,低导通电阻减少电机损耗;
  5. 工业控制:小型PLC的输出级、传感器模块的电源开关,宽温范围适合工业现场环境。

五、选型对比与价值

与同规格竞品(如某品牌3.3×3.3封装40V/25A MOSFET)相比:

  • 导通损耗更低:9.4mΩ的RDS(on)比部分竞品低10%~15%,发热更少;
  • 驱动更简单:1V阈值电压可直接被3.3V MCU驱动,无需电平转换;
  • 性价比更高:长电科技的国产供应链优势,降低采购成本;
  • 宽温适配:-40℃+150℃比部分消费级竞品(085℃)更适合恶劣环境。

总结

CJAB25N04S是一款平衡导通损耗、开关特性、封装尺寸与成本的N沟道MOSFET,针对中小功率高密度应用场景优化,可满足便携电子、电源管理、工业控制等领域的多样化需求,是国产替代与系统小型化的优选器件。

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