
Transistor/MOSFET
2N4401 NPN Transistor
The 2N4401 is a general-purpose NPN bipolar junction transistor (BJT) in a TO-92 package. It is widely used for low-power switching and amplification applications, supporting up to 600mA collector current and 40V breakdown voltage.
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Category
Transistor/MOSFET
Quality
100% Genuine
About 2N4401 NPN Transistor
The 2N4401 is a widely popular NPN silicon transistor designed for general-purpose low-power switching and amplification applications. It features a TO-92 package, making it easy to use in breadboards and through-hole PCB designs. This transistor is characterized by its high DC current gain, low saturation voltage, and reliable performance in a variety of electronic circuits. Key specifications include a maximum collector-emitter voltage of 40V, a maximum collector current of 600mA, and a power dissipation of 625mW. It is commonly used in driver stages, low-power audio amplifiers, and switching circuits for LEDs and relays. The 2N4401 is a direct equivalent to the more common 2N2222A in many applications, offering a cost-effective solution for hobbyists and professionals alike. Choose this transistor for your next project requiring a dependable and versatile NPN BJT.
Technical Specifications
| Transistor Type | NPN |
|---|---|
| Package/Case | TO-92 |
| Maximum DC Collector Current (Ic) | 600 mA |
| Collector-Emitter Breakdown Voltage (Vceo) | 40 V |
| Collector-Base Breakdown Voltage (Vcbo) | 60 V |
| Emitter-Base Breakdown Voltage (Vebo) | 5 V |
| Power Dissipation (Pd) | 625 mW |
| Operating Temperature Range | -55°C to +150°C |
| Configuration | Single |
| Thermal Resistance, Junction-to-Ambient (RθJA) | 200 °C/W |
Alternative Components
2N2222A
BC547
2N3904
S8050









