JANTX2N3811L

Overview

The JANTX2N3811L is a dual PNP silicon bipolar junction transistor manufactured by Microchip Technology, formerly Microsemi. It belongs to the 2N3811 series and is designed for high-reliability applications requiring radiation hardness. The component features a hermetically sealed metal can package, specifically TO-77, ensuring durability in harsh environments. It operates with a maximum collector-emitter voltage of 60V and supports a continuous collector current of 50mA. The device is rated for operation up to a maximum junction temperature of 200°C. This part is classified as an end-of-life product, indicating it is no longer in active production but remains available through limited stock or last-time buy channels.

Feature Summary

• Hermetically sealed metal can construction for environmental protection
• Radiation hardened design suitable for space and military use
• Dual PNP configuration within a single package
• High thermal stability with extended operating temperature range

Applications

• Aerospace and satellite electronic systems
• Military communication equipment
• High-reliability industrial control circuits
• Radiation-hardened signal processing modules

Procurement Notes

Verify authenticity through authorized Microchip distributors due to the component's end-of-life status. Request lot traceability and radiation testing certificates if required for mission-critical designs. Confirm packaging integrity upon receipt, as hermetic seals are vital for performance. Check for potential obsolescence notices or alternative sourcing options from certified surplus suppliers.

Selection Notes

Select this component when radiation tolerance and long-term reliability are primary design constraints. Ensure the circuit design accommodates the dual PNP topology and TO-77 package dimensions. Consider the thermal management requirements given the 200°C maximum junction temperature rating. Evaluate supply chain stability due to discontinued manufacturing status before finalizing the bill of materials.

Part Context

The JANTX2N3811L is part of Microsemi's extensive portfolio of radiation-hardened discrete semiconductors. It serves as a robust alternative to standard commercial transistors in environments where ionizing radiation could cause latch-up or degradation. The 'JANTX' suffix typically denotes a specific quality level within the MIL-spec framework, emphasizing strict screening and testing protocols compared to commercial variants.

Replacement Considerations

No direct public substitute part numbers are confirmed for immediate replacement. Designers should consult Microchip for any updated equivalents or consider redesigning with currently supported radiation-hardened BJT families if new production is required.