JANSD2N4449

Single Bipolar Transistors Overview

The JANSD2N4449 is a military-grade small signal switching diode manufactured by Microchip Technology. It utilizes the DO-35 axial leaded package and is qualified to MIL-PRF-19500/144 standards. The device features a maximum repetitive peak reverse voltage of 75 V and an average forward rectified current of 200 mA. Key electrical characteristics include a maximum DC reverse current of 5 nA at 75 V, a maximum forward voltage drop of 1.2 V at 10 mA, and a maximum reverse recovery time of 4 ns. It operates within a junction temperature range of -65°C to +175°C.

Single Bipolar Transistors Feature Summary

• Military qualification compliant with MIL-PRF-19500/144 specifications for high reliability applications.
• Fast switching capability with a maximum reverse recovery time of 4 ns for high-speed digital circuits.
• Wide thermal operating range supporting junction temperatures from -65°C to +175°C.

Single Bipolar Transistors Applications

• High-reliability aerospace and defense electronic systems
• Military-grade computer logic and switching circuits
• Harsh environment signal processing interfaces

Single Bipolar Transistors Procurement Notes

Verify that the component bears the correct JANSD2N4449 marking and conforms to MIL-PRF-19500/144. Confirm the presence of required test reports and traceability documentation. Ensure the supplier provides valid certification of compliance with all specified military standards before finalizing acquisition.

Single Bipolar Transistors Selection Notes

Select this component when strict military reliability standards are mandatory. It is suitable for designs requiring fast switching speeds and wide temperature tolerance in critical infrastructure. Verify that the DO-35 package dimensions fit the target PCB layout and that the 200 mA current rating meets the circuit requirements.

Single Bipolar Transistors Part Context

This part belongs to the JAN series of discrete semiconductors produced by Microchip Technology. It serves as a ruggedized alternative to commercial switching diodes, designed specifically for environments where standard components may fail due to extreme conditions or radiation exposure.

Single Bipolar Transistors Replacement Considerations

Direct replacements must be sourced from manufacturers offering parts fully compliant with MIL-PRF-19500/144. Verify pinout compatibility and ensure that any substitute meets or exceeds the 75 V reverse voltage and 4 ns recovery time specifications.

Single Bipolar Transistors FAQ

What is the maximum reverse recovery time for this diode?

The maximum reverse recovery time is 4 ns, making it suitable for high-speed switching applications.

Does this component meet military standards?

Yes, the JANSD2N4449 is qualified to MIL-PRF-19500/144 for military use.

What is the maximum forward voltage drop?

The maximum forward voltage drop is 1.2 V when tested at a forward current of 10 mA.