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DIOTEC BC327-40BK BC327
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DIOTEC BC327-40BK
- Type
- DIOTEC
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DIOTEC
- Electronic Component
- BC327-40BK
- Electronic Component
- 1
- Package
- TO-92
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.215g
- Electronic Component
- 1
- Electronic Component
- BM0227699749
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- PNP
- Frequency(f T)
- 100MHz
- Power Dissipation(Pd)
- 625mW
- 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.
BC327-40BK 产品概述
一、概述
BC327-40BK 是 DIOTEC（德欧泰克）推出的一款通用 PNP 晶体管，采用 TO-92 塑封封装，面向低功耗开关与放大应用。器件在集电极电压耐受、直流增益和频率响应之间取得良好平衡，适合音频前级、低压驱动、电平转换及一般信号放大场合。
二、主要电气参数
- 晶体管类型：PNP（双极型晶体管）
- 直流电流增益 hFE：250 @ Ic=100mA, Vce≈1V（典型）
- 最大集电极电流 Ic：800mA（峰值能力）
- 集电极-发射极击穿电压 Vceo：45V
- 特征频率 fT：100MHz（高频特性良好，适用于中频放大）
- 集电极截止电流 Icbo：10μA（小泄漏电流，有利于静态精密电路）
- 发射极-基极击穿电压 Vebo：5V
- 集—射极饱和电压 VCE(sat)：约700mV（在典型工作点下）
- 耗散功率 Pd：625mW（在规定环境条件下器件最大耗散）
- 工作结温范围：-55℃ ~ +150℃（Tj）
以上参数体现了 BC327-40BK 在中低压、较大电流下仍保持较高增益和较好频率响应的特性。
三、热设计与可靠性注意事项
TO-92 塑封的热阻较大，额定耗散功率 625mW 表示在无额外散热的条件下，器件适合中等功率工作。设计时应注意：
- 在连续大电流（接近 Ic 上限）工况下，需限制功率耗散或采取降低结温的措施（例如减小占空比、增加导热路径或在 PCB 上留大铜箔作为散热片）。
- 确认在最大结温范围内运行以保证长期可靠性；避免持续高结温和大电流同时出现。
- 发射极-基极击穿电压为 5V，基极偏置电压设计要谨慎，避免基极反向过压。
四、典型应用场景
- 低压音频放大器的前级或驱动级（得益于较高 hFE 与良好 fT）。
- 作为小信号开关或电平转换器，用于逻辑接口或继电器驱动的前置驱动。
- 电流放大/缓冲电路，例如在传感前端或电流镜路中作为有源负载。
- 通用电子教育、样机验证与小批量设计中替换常见 PNP 器件。
五、封装与使用建议
BC327-40BK 采用 TO-92 三脚直插封装，便于穿孔安装与手工焊接。使用时建议：
- 在 PCB 布局上为该器件留足铜面积以改善散热。
- 焊接热量不可过大，以免损伤塑封体或内部结构。
- 设计电路时结合器件的饱和电压和最大功率限制，适当留有安全余量。
六、总结
BC327-40BK 是一款针对通用放大与开关场景优化的 PNP BJT，具有 45V 耐压、800mA 峰值电流、约 250 的中等直流增益和 100MHz 的特征频率，适合中低功率电子设计。配合规范的热设计和正确的偏置方法，可在多种消费类与工业控制电路中可靠工作。若需更详细的定量测试条件或应用电路图，建议参考 DIOTEC 官方完整数据手册或直接联系供应商获取样片与评估资料。
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