JANSR2N2221AL-Transistor NPN Amplifier Transistor in TO-18 Metal Can Package

JANSR2N2221AL-Transistor Overview

The JANSR2N2221AL is a robust NPN bipolar junction transistor (BJT) widely used in low-power switching and amplification applications. Designed for reliable operation at collector currents up to 800mA and voltages reaching 40V, it offers a versatile solution for engineers seeking a balance of performance and durability. Its complementary gain and switching speed make it suitable for signal amplification, driver circuits, and general-purpose switching tasks. The device’s standardized JEDEC TO-18 metal can package ensures excellent thermal dissipation and mechanical stability. For sourcing and design integration, the JANSR2N2221AL transistor is a dependable choice from IC Manufacturer.

JANSR2N2221AL-Transistor Technical Specifications

JANSR2N2221AL-Transistor Key Features

• High Collector Current Capacity: Supports up to 800 mA, enabling efficient switching and amplification in moderate power circuits.
• Wide Voltage Range: Withstand voltages up to 40 V (collector-emitter), suitable for diverse industrial and instrumentation applications.
• Fast Switching Speed: Transition frequency near 250 MHz facilitates high-frequency signal processing and rapid switching operations.
• Reliable Package Design: The TO-18 metal can package enhances thermal dissipation and mechanical durability, improving long-term reliability.

Typical Applications

• General-purpose switching and signal amplification in industrial control and automation systems, where consistent performance under varying load conditions is critical.
• Driver stage for relay, LED, or small motor controls requiring moderate current handling and fast response.
• Low-noise amplification in audio and instrumentation circuits, benefiting from its stable gain and frequency characteristics.
• Prototyping and educational electronics projects that demand a widely recognized and well-documented transistor type.

JANSR2N2221AL-Transistor Advantages vs Typical Alternatives

This transistor delivers a reliable combination of current capacity, voltage rating, and switching speed that outperforms many generic low-power transistors. Its metal can packaging provides superior thermal management compared to plastic alternatives, enhancing stability under continuous operation. The device??s consistent gain range and fast transition frequency make it a preferred choice for precision switching and amplification tasks in industrial electronics. Additionally, its JEDEC standard footprint simplifies integration and replacement in established circuit designs.

JANSR2N2221AL-Transistor Brand Info

The JANSR2N2221AL transistor is a military-grade or industrial-grade variant of the widely used 2N2221 transistor family. Manufactured and qualified according to stringent standards, it often comes from established semiconductor suppliers recognized for high reliability and performance consistency in harsh environments. The ??JAN?? prefix indicates compliance with the Joint Army-Navy (JAN) standard, certifying suitability for defense and aerospace applications. This certification ensures enhanced durability, extended temperature range, and rigorous screening compared to commercial-grade equivalents.

FAQ

What is the maximum collector current rating of the JANSR2N2221AL transistor?

The maximum collector current for this transistor is 800 mA continuous, which allows it to handle moderate power loads in switching and amplification applications without risk of damage when operated within specified limits.

What package does the transistor come in, and why is it important?

This transistor is supplied in a