JANSD2N2221A-Transistor NPN Amplifier, TO-18 Metal Can Package by JAN Semiconductor

JANSD2N2221A-Transistor Overview

The JANSD2N2221A-Transistor is a widely used NPN bipolar junction transistor (BJT) designed for general purpose switching and amplification in industrial and commercial electronics. This device offers reliable performance with moderate current and voltage handling capabilities, making it suitable for a broad range of low to medium power applications. Its robust construction ensures stable operation under varying temperature and load conditions. Engineers and sourcing specialists will appreciate its compatibility with standard circuit designs and its availability through IC Manufacturer, providing a dependable solution for prototyping and production.

JANSD2N2221A-Transistor Technical Specifications

JANSD2N2221A-Transistor Key Features

• High current gain: Enables amplification of weak signals, improving circuit sensitivity and overall performance.
• Moderate voltage ratings: Supports reliable switching in circuits operating up to 40 V collector-emitter voltage, suitable for many industrial control applications.
• Robust power dissipation: With 625 mW power handling, it supports continuous operation under moderate load without thermal stress.
• Fast switching speed: Transition frequency of 300 MHz ensures suitability for high-frequency switching and amplifier stages.

Typical Applications

• General purpose amplification and switching in analog and digital electronic circuits, including signal processing and driver stages.
• Low to medium power switching applications such as relay drivers and LED drivers in industrial control systems.
• Audio amplifier circuits where moderate gain and frequency response are required.
• Test and measurement equipment circuits requiring stable and reliable transistor operation under varying loads.

JANSD2N2221A-Transistor Advantages vs Typical Alternatives

This transistor offers a balanced combination of moderate voltage and current ratings with a high current gain, providing reliable operation in industrial electronics. Its metal TO-18 package enhances thermal conductivity and mechanical durability compared to plastic alternatives. The device??s fast switching capability and wide availability make it a preferred choice over generic transistors where consistent performance and quality are critical.

JANSD2N2221A-Transistor Brand Info

The JANSD2N2221A is a variant of the classic 2N2221 transistor, which has been a staple component in the semiconductor industry for decades. It is manufactured by various reliable semiconductor producers under military and industrial standards, ensuring high reliability and consistent performance. The “JANS” prefix denotes compliance with military specifications, indicative of enhanced quality and testing. This product is trusted in both legacy and modern electronic designs for its dependable switching and amplification characteristics.

FAQ

What is the maximum collector current rating of this transistor?

The maximum collector current is rated at 800 milliamps (mA), allowing the transistor to handle moderate loads without damage, suitable for many switching and amplification tasks.

Can this transistor be used for high-frequency applications?

Yes, with a transition frequency of approximately 300 MHz, this device supports high-frequency switching and amplification, making it appropriate for RF and fast digital signal circuits.

What package type does this transistor come in?

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