WMSIC Electronic Components

CJ BC846W

ModelBC846W
PackageSOT-323
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ BC846W
Type
CJ
Minimum package
3000

Technical parameters

Electronic Component
CJ
Electronic Component
BC846W
Electronic Component
1
Package
SOT-323
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0264678767
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
770MHz
Power Dissipation(Pd)
150mW
Electronic Component
3000
Collector Current(Ic)
100mA
Current (h FE)
90

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

BC846W NPN型晶体管产品概述

BC846W是江苏长电(CJ)推出的一款小信号高频NPN型晶体管,采用SOT-323超小型贴片封装,凭借宽电压范围、高频率特性、低功耗及宽温适应性,广泛应用于消费电子、工业控制、无线通信等领域,是小型化、低功耗电路设计的理想选择。

一、产品核心定位与基本属性

BC846W属于通用型小信号晶体管,核心定位为“高频小信号放大+低速开关控制”双功能器件,兼顾电气性能与封装优势:

  • 晶体管类型:NPN(单极性结构,低噪声放大特性突出)
  • 封装形式:SOT-323(3引脚贴片,尺寸约1.6mm×1.0mm×0.8mm,节省PCB空间70%以上)
  • 品牌:江苏长电(国内半导体封装测试龙头,批量一致性与可靠性经市场长期验证)

二、关键电气性能参数解析

BC846W的电气参数针对低功耗、高频、宽温场景优化,核心参数及实际意义如下:

1. 极限电流与电压特性

  • 集电极最大电流(Ic_max):100mA(满足中小功率负载驱动,如小电流LED、微型继电器线圈)
  • 集射极击穿电压(Vceo):65V(高于同类小信号管,支持24V/48V工业控制电路设计)
  • 射基极击穿电压(Vebo):6V(避免基极反向偏置损坏,保障前端信号电路安全)

2. 增益与频率特性

  • 直流电流增益(hFE):90@10μA、5V(小信号下增益稳定,适合微弱信号放大,如麦克风前置、传感器信号调理)
  • 特征频率(fT):770MHz(高频性能优异,支持1GHz以下高频电路,如FM射频放大、蓝牙低功耗前端)

3. 饱和压降与截止电流

  • 集射极饱和电压(VCE(sat)):250mV(低饱和压降,开关时功耗小,适合电池供电设备的开关控制)
  • 集电极截止电流(Icbo):15nA(极低漏电流,信号失真小,适合精密放大电路)

4. 功率与温度适应性

  • 最大耗散功率(Pd):150mW(小功耗,适配智能手机、智能穿戴等便携设备的低功耗设计)
  • 工作温度范围:-55℃~+150℃(工业级宽温标准,覆盖车载、工业仪表等极端环境)

三、封装与可靠性优势

BC846W采用SOT-323超小型贴片封装,具备以下核心优势:

  • 小型化:比传统TO-92插件封装体积缩小70%,适配高密度PCB设计(如蓝牙耳机、智能手表);
  • 贴装高效:兼容自动化SMT生产线,生产效率高,适合批量量产;
  • 环境耐受:封装采用耐高温环氧树脂,抗机械应力、湿度及化学腐蚀,配合宽温设计,长期工作稳定性强。

四、典型应用场景

结合BC846W的参数特性,其核心应用场景包括:

1. 高频小信号放大

  • 无线通信:蓝牙(低功耗模式)、WiFi(2.4GHz前端中频放大)、FM收音机(射频信号放大);
  • 传感器调理:温度传感器、压力传感器的微弱信号放大(利用低漏电流、稳定增益特性)。

2. 低速开关控制

  • 便携设备:智能手机按键检测、蓝牙耳机LED状态指示(低饱和压降减少电池损耗);
  • 工业控制:24V电路中的小负载开关(如小型继电器驱动、指示灯控制)。

3. 宽温环境应用

  • 车载电子:车载中控按键、倒车雷达信号处理(适配-40℃~125℃车载环境);
  • 工业仪表:温度监测仪、小型PLC的输入输出接口(覆盖-55℃极端低温与150℃高温场景)。

五、品牌与品质保障

江苏长电(CJ)作为国内半导体龙头企业,BC846W符合以下品质标准:

  • 环保认证:RoHS、REACH(无铅环保,满足全球市场准入要求);
  • 一致性:批量生产参数偏差≤5%,适合量产稳定性需求;
  • 可靠性:通过高温存储(150℃/1000h)、温度循环(-55℃~150℃)、湿度测试(85℃/85%RH)等验证,长期工作故障率低。

综上,BC846W凭借“小封装、高频率、宽温、低功耗”的综合优势,成为消费电子、工业控制、无线通信领域的高性价比晶体管选择,可有效满足小型化、低功耗电路的设计需求。

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