JANS2N2221UB/TR NPN Transistor by JANS | High Gain, TO-18 Metal Can Package

JANS2N2221UB/TR Overview

The JANS2N2221UB/TR is a high-quality NPN bipolar junction transistor designed for low noise and general purpose amplification and switching applications. Featuring a TO-18 hermetic metal can package, it provides enhanced reliability and thermal performance in demanding industrial environments. Its complementary electrical characteristics, such as a maximum collector current of 800mA and a collector-emitter voltage of 40V, ensure robust operation across various circuits. This transistor is well-suited for engineers and sourcing specialists requiring dependable performance with standardized pin configurations. Available in a tape and reel format, it facilitates automated assembly processes. For detailed specifications and sourcing, visit IC Manufacturer.

JANS2N2221UB/TR Key Features

• High Collector Current Capacity: Supports up to 800mA, enabling effective handling of moderate power loads in switching or amplification circuits.
• Low Collector-Emitter Saturation Voltage: Minimizes power dissipation during saturation, improving overall circuit efficiency and thermal management.
• Hermetic TO-18 Metal Can Package: Provides superior environmental protection and mechanical robustness, ensuring reliability in harsh conditions.
• High Transition Frequency (fT): Allows for use in moderate frequency amplification applications, supporting efficient signal processing.

JANS2N2221UB/TR Technical Specifications

JANS2N2221UB/TR Advantages vs Typical Alternatives

This transistor offers superior environmental sealing and mechanical durability due to its TO-18 metal can package, setting it apart from typical plastic-encapsulated alternatives. Its robust collector current rating and low saturation voltage contribute to reliable switching with improved efficiency. Additionally, the device??s consistent gain and transition frequency deliver accurate amplification performance, making it a dependable choice for industrial and aerospace applications requiring long-term stability and precision.

Typical Applications

• Low noise amplifier stages in communication equipment, providing clear signal amplification with minimal distortion.
• Switching circuits in industrial controls where reliable transistor operation under varying loads is critical.
• Driver stages for relay and solenoid control, benefiting from the transistor??s moderate power handling and fast switching.
• General purpose amplification in instrumentation and sensor interfaces, supporting precise signal conditioning.

JANS2N2221UB/TR Brand Info

The JANS2N2221UB/TR is manufactured under stringent military and industrial standards to ensure high reliability in critical applications. Its JANS prefix indicates compliance with Joint Army-Navy specifications, reflecting rigorous testing for performance and durability. This product line is well-regarded among engineers for its consistent electrical characteristics and robust packaging, making it a trusted component in aerospace, defense, and industrial systems.

FAQ

What package type does the JANS2N2221UB/TR use, and why is it important?

This transistor uses a TO-18 hermetic metal can package, which is important because it offers enhanced protection against moisture, contaminants, and mechanical stress. This packaging ensures long-term reliability and stability, especially in harsh industrial or aerospace environments.

What is the maximum collector current rating of this transistor?

The device supports a maximum continuous collector current of 800mA. This rating allows it to handle moderate power levels efficiently in amplification and switching applications without risk of damage due to overcurrent conditions.

How does the low collector-emitter saturation voltage benefit circuit design?

A low collector-emitter saturation voltage reduces power loss during transistor switching, which improves overall efficiency and minimizes heat generation. This characteristic is valuable for power-sensitive and thermally constrained designs.

Can this transistor be used for high-frequency applications?

With a transition frequency (fT) of approximately 250 MHz, the transistor is suitable for moderate frequency amplification tasks. While not ideal for very high-frequency RF applications, it performs well in audio, instrumentation, and low- to mid-frequency signal processing.

What industries commonly use this transistor model?

This transistor is frequently used in aerospace, defense, industrial controls, and instrumentation. Its compliance with JANS military standards and robust packaging make it ideal for applications demanding high reliability and consistent performance under challenging conditions.