JANTX2N3749

Single Bipolar Transistors Overview

The JANTX2N3749 is a military-grade NPN power bipolar junction transistor manufactured by Microchip Technology. It utilizes silicon technology and is housed in a TO-111 through-hole package. The device is rated for a maximum collector-emitter voltage of 80 V, a maximum collector-base voltage of 110 V, and an emitter-base voltage of 8 V. It supports a maximum DC collector current of 2 A with a power dissipation capacity of 5 W. The component operates within a temperature range from -65 °C to +200 °C.

Single Bipolar Transistors Feature Summary

• Designed for high-reliability applications requiring radiation hardness and strict environmental tolerance
• Capable of handling significant power dissipation suitable for robust switching or amplification tasks
• Constructed using silicon planar technology for stable electrical performance

Single Bipolar Transistors Applications

• Military aerospace electronic systems
• High-reliability communication equipment
• Harsh environment industrial control circuits

Single Bipolar Transistors Procurement Notes

Verify the specific revision level and lot traceability documentation upon order confirmation. Ensure that the procurement channel provides valid military qualification certificates. Confirm that the physical marking matches the official datasheet specifications to prevent counterfeit introduction into the supply chain.

Single Bipolar Transistors Selection Notes

Select this component when a standard commercial BJT lacks the necessary radiation tolerance or extended temperature range. Compare the 80 V rating against circuit requirements to ensure adequate headroom. Consider the TO-111 package constraints for thermal management and board space allocation during the design phase.

Single Bipolar Transistors Part Context

This part belongs to the 2N3749 family of power transistors produced under military specifications. It serves as a ruggedized alternative to commercial variants, offering enhanced durability against extreme conditions. The manufacturer maintains specific quality controls for this line to meet defense industry standards.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the 2N3749 commercial grade or other MIL-spec equivalents such as the 2N3749A if tighter gain parameters are required. Verify pinout compatibility and thermal resistance characteristics before substitution.