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DIOTEC BC547CBK
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DIOTEC BC547CBK
- Type
- DIOTEC
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DIOTEC
- Electronic Component
- BC547CBK
- Electronic Component
- 1
- Package
- TO-92
- Electronic Component
- 1 NPN
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.214g
- Electronic Component
- 1
- Electronic Component
- BM0265262257
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- NPN
- Frequency(f T)
- 300MHz
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BC547CBK 产品概述
一、概述
BC547CBK 是一款通用型 NPN 双极结晶体管，适用于小信号放大和低功率开关场合。由 DIOTEC（德欧泰克）提供的该型号在 TO-92 封装下具有可靠的电气特性，兼顾高电流增益与较高的截止电压，适用于音频前级、传感器放大和逻辑接口等电路。
二、主要电气参数
- 直流电流增益 (hFE)：420（典型，Ic=2mA，Vce=5V，C 增益组 C）
- 最大集电极电流 (Ic)：100mA
- 集电极-射极击穿电压 (Vceo)：45V
- 集电极截止电流 (Icbo)：15nA（典型）
- 射基极击穿电压 (Vebo)：5V
- 特征频率 (fT)：约 300MHz（小信号高频性能良好）
- 饱和电压 VCE(sat)：约 600mV（典型，具体取决于驱动电流）
- 耗散功率 (Pd)：500mW（TO-92 封装，注意散热与环境温度限制）
- 工作结温范围 (Tj)：-55°C ~ +150°C
三、封装与引脚
BC547CBK 常见为 TO-92 塑封三引脚封装。常见引脚排列（面向平坦面，左→右）为 C‑B‑E，但不同厂家封装顺序可能存在差异，实际使用前请以厂商数据手册或实物标识为准。
四、典型应用
- 小信号放大器（音频前级、射频前置放大在适当偏置下）
- 低电流开关与驱动（继电器小电流驱动、指示灯驱动）
- 信号整形与接口缓冲（传感器接口、逻辑电平转换）
- 教学与原型电路，替代常见的通用 NPN 管
五、使用建议与注意事项
- 虽然 hFE 在低电流点极高，但增益随温度与电流显著变化，设计时应考虑最坏情况（使用较低增益或配合反馈稳定）。
- 不要超过 Ic=100mA 与 Vceo=45V 的额定值；长时间靠近耗散功率上限会导致结温升高，影响可靠性。TO-92 的 Pd 为 500mW，实际允许功耗受环境温度和印制板散热影响较大。
- Vebo 仅 5V，基极对射极施加反向电压时应避免超出该值以防击穿。
- 在高频或射频应用中，需关注寄生电容与布线引起的性能下降。
六、总结
BC547CBK（DIOTEC）是一款性能均衡的高增益 NPN 小信号晶体管，适合多种低功耗放大与开关场合。选型时兼顾 hFE、最大电流与功耗限制，并参考厂家完整数据手册进行电气与热设计，可在通用电子与工业控制等领域发挥良好性能。
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