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Hottech BC848C
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech BC848C
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- BC848C
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 NPN
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0227655805
- Transistor Type
- NPN
- Frequency(f T)
- 100MHz
- Power Dissipation(Pd)
- 200mW
- 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.
BC848C 产品概述
一、产品简介
BC848C 是 Hottech（合科泰）推出的一款低功耗、小尺寸的 NPN 型小信号双极晶体管，封装为 SOT-23。该器件面向通用开关与放大应用，兼顾高直流增益与较宽的频率特性，适合便携与高密度电路板设计。
二、主要电气参数
- 晶体管类型：NPN
- 集电极电流 Ic(max)：100 mA
- 集—射极击穿电压 Vceo：30 V
- 功耗 Pd：200 mW（封装及环境依赖，见数据手册）
- 直流电流增益 hFE：420 @ Ic = 2 mA, VCE = 5 V（C 级别高增益）
- 特征频率 fT：100 MHz
- 集电极截止电流 Icbo：≈100 nA（典型）
- 集电极饱和电压 VCE(sat)：≈500 mV @ Ic = 100 mA, Ib = 5 mA
- 发—基极反向击穿电压 Vebo：6 V
- 封装：SOT-23
三、性能特点
- 高直流增益（hFE 高达 420），在小信号放大场合可减少偏置电流要求，提升灵敏度。
- fT ≈100 MHz，满足一般音频及低中频放大器与缓冲电路的频率需求。
- 低漏电流（Icbo 约100 nA），适合高阻抗输入或传感前端场合。
- SOT-23 小体积，便于表面贴装和高密度布局。
四、封装与热管理
SOT-23 封装便于自动贴装，但散热能力受限，额定耗散功率 Pd = 200 mW（标称值）在实际电路中需考虑环境温度与 PCB 热扩散。建议：
- 在高电流或持续功耗场景下使用较大铜箔散热或增加过孔改善导热；
- 根据应用对功耗进行降额设计，确保结温不超限；
- 参考官方数据手册确定最大结温与热阻参数。
五、典型应用
- 小信号放大器（前置放大、差分放大等）
- 低侧或高侧通用开关（通过合适基极驱动）
- 传感器信号调理、驱动小型继电器或光耦输入（注意功耗与饱和电压）
- 电平转换与缓冲电路
六、使用建议与注意事项
- 避免对基-射极施加超过 Vebo = 6 V 的反向电压，以免损伤极间结。
- 若需要开关 100 mA 级别电流，请保证基极驱动电流足够（参考 VCE(sat) 规格：500 mV @ Ic=100 mA, Ib=5 mA），并注意封装散热限制。
- 在高阻抗或低漏电要求电路中，Icbo 虽小但仍需考虑温度上升对漏电的影响。
- 为保证长期可靠性，应在高温环境中对 Pd 进行降额并按 PCB 进行热设计。
七、结论
BC848C（Hottech 合科泰，SOT-23）是一款性能均衡的高增益 NPN 小信号晶体管，适用于对增益、频率和封装尺寸有综合要求的通用电子应用。在使用时需注意封装散热和基极反向电压限制，按照官方数据手册与电路热设计原则进行选型与布局，可在便携设备、传感与信号处理电路中发挥良好效果。若需引脚定义、温度特性和极限参数的详细数值，请参考合科泰官方数据手册。
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