2SA07940R

Single Bipolar Transistors Overview

The Panasonic 2SA0794 is a silicon PNP epitaxial planar power transistor designed for low-frequency output driver applications. It operates in a TO-126B-A1 package with a collector-emitter voltage (VCEO) of -100 V and a continuous collector current (IC) rating of -0.5 A. The device features a peak collector current capability of -1 A and a maximum collector power dissipation of 1.2 W at 25°C ambient temperature. It has a transition frequency (fT) of 120 MHz and a forward current transfer ratio (hFE) ranging from 90 to 220 depending on the specific rank classification.

Single Bipolar Transistors Feature Summary

• Optimized for use as a driver stage in low-frequency audio amplifiers delivering 40 W to 100 W output power.
• Utilizes a TO-126B package design that eliminates the need for an electrical insulation plate during heat sink installation.
• Engineered as a complementary pair to the NPN 2SC1567 series transistors.

Single Bipolar Transistors Applications

• Low-frequency output amplifier driver stages
• General-purpose electronic equipment
• Household appliances

Single Bipolar Transistors Procurement Notes

Verify the exact lifecycle status, as the datasheet indicates potential maintenance or discontinued classifications. Confirm compliance with RoHS Directive (EU 2002/95/EC). Ensure final specifications match the most recent product standards before mass production. Consult official channels for availability updates.

Single Bipolar Transistors Selection Notes

Select based on required VCEO ratings (-100 V standard, -120 V for 'A' variant) and hFE gain requirements. Consider thermal management capabilities given the 1.2 W dissipation limit. Verify compatibility with complementary NPN drivers like the 2SC1567. Evaluate safe operating area constraints under varying pulse widths and temperatures.

Single Bipolar Transistors Part Context

This component belongs to the family of silicon PNP epitaxial planar transistors manufactured by Panasonic Electronic Components. It serves as a discrete power switching and amplification element within general-purpose electronic circuits, specifically targeting audio output stages where moderate power handling and high voltage tolerance are necessary.

Single Bipolar Transistors Replacement Considerations

The 2SA794 is listed as a conventional equivalent part number. For direct replacement, verify pinout compatibility and ensure the substitute meets the -100 V / -0.5 A specifications. Check if the application requires the higher voltage rating provided by the 2SA0794A variant.

Single Bipolar Transistors FAQ

What is the maximum collector-emitter voltage for the 2SA0794?

The maximum collector-emitter voltage (VCEO) with the base open is -100 V.

Does this transistor require an insulating pad for mounting?

No, the TO-126B package is designed to be installed directly onto a heat sink without requiring an additional insulation plate.

What is the complementary NPN transistor for this component?

The 2SA0794 is complementary to the 2SC1567 and 2SC1567A NPN transistors.