WMSIC Electronic Components

FOSAN BC848C

ModelBC848C
PackageSOT-23
BrandFOSAN
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+

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Technical data

Product details

19 specifications

Core information

Product name
FOSAN BC848C
Type
FOSAN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FOSAN
Electronic Component
BC848C
Electronic Component
1
Package
SOT-23
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0264886276
Transistor Type
NPN
Frequency(f T)
100MHz
Power Dissipation(Pd)
225mW
Electronic Component
Electronic Component
Electronic Component
3000
Collector Current(Ic)
100mA

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

富信FOSAN BC848C NPN型三极管产品概述

一、核心器件类型与基本定位

BC848C是富信(FOSAN)推出的一款NPN型小信号三极管,针对通用信号放大与低速小负载开关场景优化设计,以「高增益、低损耗、紧凑封装」为核心特点,广泛适配便携电子、小型家电、传感器调理等领域的电路需求,是替代同类进口器件的高性价比选择。

二、关键电性能参数详解

BC848C的参数经过针对性优化,平衡了增益、损耗与可靠性,核心参数如下:

2.1 直流特性

  • 集电极最大电流(Ic):100mA,满足小负载(如LED、微型继电器)的驱动需求;
  • 集射极击穿电压(Vceo):30V,可承受中等电压波动,避免电路过压损坏;
  • 饱和压降(VCE(sat)):600mV(测试条件:100mA Ic、5mA Ib),开关状态下损耗极低,减少发热;
  • 截止电流(Icbo):5μA,漏电流小,静态功耗低,适合低功耗电路;
  • 射基极击穿电压(Vebo):5V,基极-发射极反向耐压稳定,避免反向偏置损坏。

2.2 交流与增益特性

  • 直流电流增益(hFE):典型值达800(测试条件:2mA Ic、5V Vce),是同类器件中较高的增益水平,可高效放大微弱信号;
  • 特征频率(fT):100MHz,支持中等频率信号处理,覆盖音频、中频等应用频段。

2.3 功率特性

  • 最大耗散功率(Pd):225mW,属于小功率器件范畴,无需额外散热结构即可稳定工作,适配便携设备的低功耗要求。

三、封装形式与物理特性

BC848C采用SOT-23标准表面贴装封装,具有以下优势:

  • 体积紧凑:引脚数3,尺寸约2.9×1.6×1.1mm,节省电路板空间,适配高密度布局;
  • 焊接便捷:表面贴装工艺兼容自动化生产,引脚布局符合行业标准(通常1脚为基极、2脚为发射极、3脚为集电极),便于电路设计与焊接;
  • 环保合规:无铅封装符合RoHS标准,适配现代电子制造的环保要求。

四、典型应用场景

结合参数特点,BC848C的核心应用场景包括:

4.1 便携电子信号放大

如智能手机、蓝牙耳机的音频前置放大电路,利用高hFE特性将微弱音频信号放大至驱动耳机的电平,同时小封装节省设备内部空间。

4.2 小负载开关控制

  • 小型家电(加湿器、台灯)的LED指示灯驱动;
  • 微型继电器、低功耗执行器的开关控制,低饱和压降减少开关损耗,延长电池续航(若为电池供电设备)。

4.3 传感器信号调理

如温度传感器(PT100)、压力传感器的输出信号放大,将μV级别的微弱信号放大至mV级,便于后续MCU准确采集。

4.4 中频信号辅助电路

如收音机的中频放大环节、调制解调电路的辅助放大,100MHz特征频率满足中频信号(通常455kHz~10MHz)的处理需求。

五、品牌与可靠性说明

富信(FOSAN)作为国内知名半导体器件制造商,BC848C具有以下可靠性优势:

  • 参数一致性:批量生产时hFE、饱和压降等关键参数波动小,适配量产需求;
  • 长期稳定性:截止电流Icbo控制在5μA以内,漏电流低,长期工作无明显性能衰减;
  • 应用覆盖广:通过消费电子、工业控制等领域的兼容性测试,可满足不同场景的可靠性要求。

综上,BC848C以高性价比、紧凑封装与稳定性能,成为通用小信号放大与低速开关场景的优选器件,适配从便携设备到小型家电的多元电路需求。

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