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ST BC807-40 transistor BC807
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ST BC807-40
- Type
- ST
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ST
- Electronic Component
- BC807-40
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.028g
- Electronic Component
- 1
- Electronic Component
- BM0226493309
- Transistor Type
- PNP
- Frequency(f T)
- 80MHz
- Power Dissipation(Pd)
- 300mW
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Collector Current(Ic)
- 500mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BC807-40 产品概述
一、主要特性
BC807-40 为 PNP 型小信号晶体管，适用于开关与放大电路。器件具备较高的直流电流增益和较低的漏电流，工作频率可满足中高频应用需求。封装为 SOT-23，体积小，便于表面贴装与空间受限的电路板设计。品牌标注为 ST(先科)。
主要特性摘要：
- 晶体管类型：PNP
- 直流电流增益 hFE：250 @ 100 mA, VCE=1 V
- 特征频率 fT：80 MHz
- 集电极最大电流 Ic：500 mA
- 集射击穿电压 Vceo：45 V
- 射基击穿电压 Vebo：5 V
- 集电极截止电流 Icbo：约 100 nA
- 集射饱和电压 VCE(sat)：约 700 mV
- 耗散功率 Pd：300 mW（SOT-23 封装）
二、电气性能要点
BC807-40 在中等电流工作点（如数十至百毫安级）仍能保持良好增益，hFE 在 100 mA 条件下可达约 250，利于电流放大与驱动应用。低的 Icbo 值（约 100 nA）使其在高阻抗电路或偏置网络中保持较低漏电。fT 约 80 MHz，支持一定带宽的信号放大与快速开关。
器件的 Vceo=45 V 提供了较宽的电压余量，适合低至中压电源系统；Vebo=5 V 则提示基极对发射极的反向耐压有限，布线和测试时需注意基极反向应力。
三、典型应用场景
- 低功耗便携设备中的信号放大与驱动
- 逻辑级或模拟开关、反相器与缓冲级
- 小型继电器或小电流负载的驱动（在额定电流和散热条件下）
- 通用放大器、偏置电路与电平移位电路
四、封装与引脚信息
封装：SOT-23，适合自动贴装与高密度 PCB 布局。SOT-23 的热性能和耗散能力有限，Pd 标称约 300 mW，实际使用中需考虑 PCB 的铜箔散热、环境温度以及器件热阻对功耗的降额影响。
引脚使用请参照厂商封装图，布线时注意基极和发射极的保护以及避免在基极上施加超过 Vebo 的反向电压。
五、设计与使用注意事项
- 功率与热管理：SOT-23 的 Pd 为 300 mW，长时间接近额定耗散会导致结温升高并影响可靠性。建议在 PCB 设计中使用散热铜箔并进行热降额设计。
- 饱和与开关性能：VCE(sat) 约 700 mV，驱动低电压负载时需考虑饱和压降带来的功率损耗与电压损耗。
- 极限参数遵循：在靠近 Ic=500 mA 或 Vce=45 V 的极限条件下，器件应短时使用并避免持续工作以保障寿命。
- 静电与基极保护：基极对发射极的击穿电压较低（Vebo=5 V），在调试和装配过程中应采取 ESD 防护与避免反向电压过高。
六、包装与品牌信息
BC807-40 以 SOT-23 小封装提供，适合表面贴装生产流程。品牌标注为 ST(先科)。实际采购与设计时建议参阅厂商最新版规格书以获取完整引脚图、典型电路、最大额定值、热阻及典型特性曲线，确保设计满足器件工作条件。
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