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JSMSEMI 2N3906
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JSMSEMI 2N3906
- Type
- JSMSEMI
- Minimum package
- 1000
Technical parameters
- Electronic Component
- JSMSEMI
- Electronic Component
- 2N3906
- Electronic Component
- 1
- Package
- TO-92
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.165g
- Electronic Component
- 1
- Electronic Component
- BM0229961333
- Transistor Type
- PNP
- Frequency(f T)
- 250MHz
- Power Dissipation(Pd)
- 625mW
- Electronic Component
- 1000
- Collector Current(Ic)
- 200mA
- Current (h FE)
- 100
- Voltage(Vebo)
- 5V
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、主要特性
2N3906 是一款常用的 PNP 小信号晶体管，适合放大与开关应用。基于提供的规格参数，其主要特性包括：
- 直流电流增益 hFE ≈ 100（测试条件：Ic = 10mA，VCE = 1V）
- 集电极电流 Ic 最大 200mA
- 集电极—发射极击穿电压 Vceo = 40V
- 射极—基极击穿电压 Vebo = 5V
- 集电极截止电流 Icbo ≈ 100nA（在规定工况下）
- 特征频率 fT ≈ 250MHz，适合中高频放大
- 集电极饱和电压 VCE(sat) ≈ 400mV（条件：IC=50mA 或 5mA 时典型值）
- 最大耗散功率 Pd ≈ 625mW（TO-92 封装，需按环境温度降额使用）
- 封装：TO-92（适合通孔安装）
- 品牌示例：JSMSEMI（杰盛微）
二、功能与应用场景
2N3906 以其良好的增益、较低的饱和压和中等频率响应，被广泛用于：
- 小信号放大器（前置放大、音频级、开关放大）
- 高端（正极）开关、电平转换与负载驱动（PNP 常用于高侧开关）
- 通用开关电路、脉冲驱动、电路保护和复合放大电路
- 与其互补的 NPN 为 2N3904，可构成推挽对或差分对
三、封装与热管理
TO-92 小塑封封装体积小、易于手工焊接与通孔板装配。注意：
- 额定耗散 625mW 为器件在规定环境温度下的最大值，实际电路中应考虑散热、PCB 铜箔面积与环境温度，必要时降额使用或增加散热措施。
- 长时间大电流工作时需关注结温上升，避免超过最大结温导致性能退化或损坏。
四、使用要点与注意事项
- 控制基极-射极电压：Vebo = 5V，切勿在电路调试或浪涌时超过此限制，以免损伤基极结。
- 饱和区驱动时确保基极电流充足，否则会出现较高的 VCE(sat) 与发热增加。
- 高频应用中，注意电路布局和寄生电容，利用合理的偏置和旁路电容以保证稳定性。
- 替换选型时确认封装引脚排列（TO-92 版在不同厂家可能有差异），以免接错脚位。
五、典型电路参考
- 高侧开关：将 2N3906 的发射极接至正电源，集电极驱动负载，基极通过限流电阻接至控制信号（控制信号相对于发射极需能拉低以打开晶体管）。
- 共射放大：常规偏置网络提供稳定的静态工作点，输出自集电极采样并加负载电阻。
总结：2N3906（TO-92，JSMSEMI 等厂商提供）是一款性能均衡的 PNP 小信号晶体管，适合多种低功率放大与开关场合。选用时应关注耗散能力、热管理和基极耐压，以保证长期可靠工作。
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