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ON PN2222ABU
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ON PN2222ABU
- Type
- ON
- Minimum package
- 10000
Technical parameters
- Electronic Component
- ON
- Electronic Component
- PN2222ABU
- Electronic Component
- 1
- Package
- TO-92-3
- Electronic Component
- 1 NPN
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.21g
- Electronic Component
- 1
- Electronic Component
- BM0263558249
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- NPN
- Frequency(f T)
- 300MHz
- Power Dissipation(Pd)
- 625mW
- Electronic Component
- 10000
- Collector Current(Ic)
- 1A
- Current (h FE)
- 35
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PN2222ABU 产品概述
一、产品简介
PN2222ABU 是安森美（ON Semiconductor）推出的一款通用 NPN 小信号/开关型晶体管，封装为常见的 TO-92-3。该器件适用于低功率开关、驱动以及小信号放大场合，器件稳健、性价比高，便于手工焊接与批量贴装。
二、主要电气参数
- 晶体管类型：NPN
- 最大集电极电流 (Ic)：1 A
- 集-射极击穿电压 (Vceo)：40 V
- 最大耗散功率 (Pd)：625 mW
- 直流电流增益 (hFE)：35（额定值，实际随工作点变化）
- 特征频率 (fT)：300 MHz
- 集电极截止电流 (Icbo)：10 μA
- 集-射极饱和电压 (VCE(sat))：300 mV（典型，依驱动条件而定）
- 射-基极击穿电压 (Vebo)：6 V
- 工作温度范围：-55 ℃ 至 +150 ℃
- 数量：1 个 NPN（单只器件）
三、封装与引脚
封装：TO-92-3，适合通孔安装与原型板开发。不同厂家在引脚排列上可能存在差异，建议在设计及焊接前查阅具体封装资料或器件数据手册以确认引脚定义与引脚顺序。
四、典型应用
- 低压直流开关与负载驱动（继电器、LED、低功率电机）
- 小信号放大（前置放大、音频级放大）
- 驱动电路、缓冲级与电平转换
- 高频小信号处理（fT=300 MHz 使其在射频前端或高速开关中表现良好，注意功率与线性限制）
五、使用注意事项与选型建议
- 在接近 Ic=1 A 工作点时，需关注耗散与热管理，TO-92 封装散热能力有限，建议降低占空比或采用外部散热、换用功率封装。
- 饱和导通时 VCE(sat) 与基极驱动电流密切相关，设计开关电路时应保证足够基极电流（考虑在饱和区时放大系数显著下降）。
- 集电极截止电流 Icbo 在高温下会上升，长时间高温工作会影响漏电与噪声。
- 若需要更大电流或更低饱和压降，可选用功率级晶体管或场效应管；若注重高频增益、低噪声，可参照器件数据手册校核工作点。
六、小结
PN2222ABU（TO-92-3）是一款通用、耐用且易于使用的 NPN 晶体管，适合各类低功耗开关与小信号放大应用。设计时请结合上述电气参数与封装散热特性，按照实际工况选择合适的偏置和热管理方案，以保证长期可靠性。
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