2SD774-T-AZ

Overview

The 2SD774-T-AZ is an NPN silicon epitaxial planar transistor manufactured by Renesas Electronics. It features a collector-emitter breakdown voltage of 50V and a continuous collector current rating of 1A. The device is housed in a TO-92 package with a maximum power dissipation of 625mW. Key electrical characteristics include a minimum DC current gain (hFE) of 135 and a transition frequency (fT) of 50MHz. The component supports a maximum operating junction temperature of 150°C and is designed for general-purpose switching and amplification applications.

Feature Summary

• NPN polarity configuration utilizing silicon epitaxial planar technology
• Capable of handling 1A continuous collector current with 50V breakdown voltage
• High DC current gain ensuring efficient signal amplification
• Robust thermal performance supporting operation up to 150°C

Applications

• General-purpose amplifier circuits
• Low-frequency switching applications
• Audio signal processing stages

Procurement Notes

Verify the specific suffix -T-AZ against the official Renesas datasheet to confirm tape-and-reel packaging and exact binning specifications. Ensure the component matches the required hFE grading and fT classification for your design. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when designing circuits requiring moderate current handling and high voltage tolerance in a compact through-hole package. Consider the 50V breakdown limit and 1A current capacity relative to your load requirements. Evaluate the thermal management needs given the 625mW power dissipation limit. Compare the 50MHz transition frequency against your signal bandwidth requirements to ensure adequate performance.

Part Context

This transistor belongs to Renesas' discrete semiconductor portfolio, specifically within the bipolar junction transistor (BJT) category. It serves as a standard solution for analog and digital switching tasks where reliability and consistent gain are critical. The TO-92 form factor allows for easy integration into prototyping boards and consumer electronics assemblies.

Replacement Considerations

Consult the official Renesas replacement guide for direct equivalents. Verify pinout compatibility and electrical parameter margins before substituting with other NPN transistors from different manufacturers.