JANS2N2946A-Transistor NPN Power Transistor in TO-39 Metal Can Package – Fairchild

JANS2N2946A-Transistor Overview

The JANS2N2946A is a high-performance NPN bipolar junction transistor designed for reliable switching and amplification in industrial and military-grade applications. Featuring robust voltage and current ratings, this transistor offers stable operation under demanding conditions, including elevated temperatures and high power dissipation. Its hermetic TO-18 metal can package ensures durability and long-term reliability, making it ideal for aerospace, defense, and other mission-critical environments. Sourced from a trusted IC Manufacturer, this transistor provides consistent performance for precision analog and switching circuits requiring superior gain and ruggedness.

JANS2N2946A-Transistor Technical Specifications

JANS2N2946A-Transistor Key Features

• High voltage tolerance: Supports collector-emitter voltages up to 60 V, enabling operation in medium-power switching and amplification circuits.
• Robust collector current capacity: Handles up to 0.8 A continuous current, suitable for moderate load-driven applications.
• Wide DC current gain range: Offers h_FE between 40 and 300, which allows flexibility in gain optimization for various analog stages.
• Hermetic TO-18 packaging: Provides excellent environmental protection and thermal conduction, increasing reliability in harsh conditions.
• High transition frequency: At 50 MHz, it supports fast switching speeds, beneficial for high-frequency amplification and signal processing.
• Low power dissipation: Rated for 1 W, balancing performance and thermal management in compact designs.
• Military specification compliance: Ensures consistent quality and performance under stringent operational requirements.

Typical Applications

• Signal amplification in aerospace and defense electronics, where ruggedness and reliability are critical for mission success.
• Switching circuits in industrial control systems requiring stable operation under fluctuating environmental conditions.
• Analog signal processing in instrumentation and measurement devices, benefiting from wide gain range and low noise.
• General-purpose amplification in medium-voltage circuits where hermetic packaging prevents moisture and contaminants.

JANS2N2946A-Transistor Advantages vs Typical Alternatives

This transistor delivers superior reliability and environmental resistance due to its hermetic metal can package, outperforming typical plastic-encapsulated alternatives in harsh conditions. Its broad gain range and high voltage ratings provide design flexibility, while the military-grade specification ensures consistent quality and longevity. The combination of robust current handling and high transition frequency makes it a balanced solution for both switching and amplification tasks, offering engineers precise control with dependable performance.

JANS2N2946A-Transistor Brand Info

The JANS2N2946A is a military-grade variant of the standard 2N2946 transistor, produced under stringent quality controls to meet MIL-STD requirements. This device is typically manufactured by established semiconductor companies specializing in defense and aerospace components, ensuring compliance with strict reliability and performance standards. The ??JAN?? prefix indicates Joint Army-Navy qualification, confirming its suitability for government and industrial applications where long-term stability and ruggedness are essential. Its TO-18 metal can packaging is a hallmark of high-reliability transistor designs widely employed in