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DIOTEC(德欧泰克) 2N3906
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DIOTEC 2N3906
- Type
- DIOTEC
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DIOTEC
- Electronic Component
- 2N3906
- Electronic Component
- 1
- Package
- TO-92
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.315g
- Electronic Component
- 1
- Electronic Component
- BM0226506823
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- PNP
- Frequency(f T)
- 250MHz
- Power Dissipation(Pd)
- 625mW
- Electronic Component
- Electronic Component
- Electronic Component
- 4000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
2N3906 产品概述
一、概述
2N3906 是一款通用型 PNP 小信号三极管，采用 TO‑92 封装，适用于低功耗开关与小信号放大场合。该器件由 DIOTEC（德欧泰克）出品，具有稳定的直流电流增益和较高的频率特性，适合在消费电子、仪表和信号处理电路中作为通用 PNP 器件使用。
二、主要电气参数
- 晶体管类型：PNP（小信号双极型晶体管）
- 直流电流增益 (hFE)：约 100 @ Ic = 10 mA, VCE = 1 V
- 集电极电流 (Ic) 最大值：200 mA
- 集电极—射极击穿电压 (VCEo)：40 V
- 耗散功率 (Pd)：625 mW（TO‑92 封装，参考值，受环境温度与散热条件影响）
- 特征频率 (fT)：约 250 MHz，适合高达射频前端的小信号放大
- 集电极截止电流 (ICBO)：约 50 nA（小电流漏电）
- 射基极击穿电压 (VEBO)：5 V
- 集—射极饱和电压 (VCE(sat))：约 400 mV（受驱动电流影响）
三、典型应用场景
- 低电流开关与驱动：作为 PNP 开关用于高侧开关、接口反相等场合。
- 小信号放大：前置放大器、音频低功率放大与交流耦合放大电路。
- 温度与传感器接口：与 NPN（如 2N3904）配合形成互补对，完成简单放大或推挽结构。
- 信号级别移位与缓冲：在电平转换、反相缓冲通道中表现良好。
四、封装与热管理
2N3906 常见为 TO‑92 直插封装，便于手工焊接与面包板试验。由于 Pd 仅为 625 mW，长时高电流工作时需注意热量积累：
- 在印刷电路板上为器件预留适当铜箔散热面积；
- 对于 Ic 接近最大值或高占空比开关，需考虑降额使用或采用外部散热措施；
- 工作结温范围宽（-55°C 至 +150°C），但在高温下应按厂商规定进行功耗降额。
五、选型与使用注意
- 确认电路中最大 VCE 与 IC 不超过 40 V 与 200 mA，避免 VEBO（5 V）反向基极过压；
- 设计驱动（基极电阻）时考虑在饱和开关时所需的基极电流，避免长期过驱动导致结温升高；
- 高频应用注意寄生电容与布局，fT≈250 MHz，但在实际放大倍数与频率响应上受封装与电路布线影响明显。
六、常见替代型号
在需要同等电气特性的情况下，可考虑功能等价或互补型号（选型时仍需核对参数）：
- 2N3906（标准品）
- MMBT3906（SMD 封装，功能相近）
- 对应互补 NPN：2N3904（用于互补对比配）
总结：2N3906 是一款性能均衡、应用广泛的 PNP 小信号晶体管，适用于低功耗开关及小信号放大领域。合理的热管理与正确的偏置设计可以确保器件在长期应用中的可靠性与稳定性。
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