2N4240-Transistor | NPN Power Transistor | TO-39 Metal Can Package | ON Semiconductor

2N4240-Transistor Overview

The 2N4240 is an NPN bipolar junction transistor (BJT) designed for high voltage, medium power switching, and amplification applications. With a collector-emitter voltage rating typically around 100V and a collector current capacity up to 3A, it ensures reliable performance in demanding industrial circuits. This transistor is well-suited for use in linear amplifiers, switching regulators, and driver stages where moderate gain and robust electrical characteristics are required. Engineered for durability and consistent operation under varied electrical stresses, the device supports efficient thermal management and stable gain, making it a practical choice for engineers seeking reliable semiconductor components. For more detailed sourcing and specifications, visit IC Manufacturer.

2N4240-Transistor Technical Specifications

2N4240-Transistor Key Features

• High voltage tolerance: With a collector-emitter voltage rating up to 100 V, it supports circuits requiring substantial voltage margins, enhancing design flexibility.
• Moderate power handling: Capable of up to 3 A collector current and 40 W power dissipation, it reliably drives medium-power loads without thermal overload.
• Wide gain range: DC current gain varying from 40 to 160 ensures adaptability across amplifier and switching applications, optimizing signal amplification and control.
• Robust packaging: The TO-39 metal can package provides excellent thermal conductivity and mechanical durability, making it suitable for industrial environments.

Typical Applications

• Used in linear and switching amplifier stages where moderate power and voltage handling are essential, including audio amplifiers and signal conditioning circuits.
• Commonly employed in power drivers and relay driver circuits due to its ability to handle medium currents reliably.
• Suitable for voltage regulator circuits and power supply sections requiring stable switching elements with good gain characteristics.
• Utilized in industrial control systems where consistent transistor performance under varying electrical loads is critical for system stability.

2N4240-Transistor Advantages vs Typical Alternatives

The 2N4240 offers a balanced combination of high voltage capability and moderate power handling, making it advantageous over lower voltage transistors in industrial applications. Its wide current gain range allows for flexible circuit design, while the TO-39 packaging enhances thermal reliability compared to plastic encapsulated devices. This transistor??s robustness and consistent electrical parameters facilitate dependable operation, reducing the risk of failure and improving overall system lifespan in demanding environments.

2N4240-Transistor Brand Info

The 2N4240 transistor was originally introduced and widely distributed by multiple semiconductor manufacturers including companies such as ON Semiconductor and Fairchild (now part of ON Semiconductor), as well as other established IC suppliers. It is recognized as a standard industrial transistor offering proven performance in switching and amplifier roles. Availability from diverse manufacturers ensures sourcing flexibility for engineers and procurement specialists, often with guaranteed compliance to industry-standard packaging and electrical characteristics.

FAQ

What is the maximum collector current rating for this transistor?

The transistor supports a maximum continuous collector current of 3 A, allowing it to handle medium-power loads effectively in switching and amplification applications