2SC3940AQA

Single Bipolar Transistors Overview

The Panasonic 2SC3940AQA is a small signal NPN silicon bipolar transistor housed in a TO-92 package. It features a collector current rating of 1 A and a collector-emitter breakdown voltage of 25 V. The device has a minimum DC current gain (hFE) of 170 and supports a maximum junction temperature of 150 °C. Designed for low-frequency output and driver amplification, it is complementary to the 2SA1534 series.

Single Bipolar Transistors Feature Summary

• Low collector-emitter saturation voltage
• Radial taping supply compatibility

Single Bipolar Transistors Applications

• Low-frequency output amplification
• Driver amplification

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'QA' against official Panasonic documentation to confirm if it denotes a distinct tape-and-reel variant or packaging specification compared to standard retail units. Ensure compliance with RoHS standards as indicated for the base model. Cross-reference the manufacturer's latest datasheet to validate pinout configurations and absolute maximum ratings before integration.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring moderate current handling within a compact TO-92 form factor. The high current gain facilitates efficient driver stage design. Consider thermal management requirements given the 150 °C junction limit. Verify that the 25 V voltage rating aligns with the circuit's operational headroom needs.

Single Bipolar Transistors Part Context

This NPN transistor belongs to Panasonic's lineup of epitaxial planar devices intended for general-purpose amplification. It serves as the complementary counterpart to the 2SA1534 PNP transistor, enabling push-pull amplifier configurations. The product line emphasizes reliability and performance in consumer electronics and industrial control circuits.

Single Bipolar Transistors Replacement Considerations

The 2SC3940S is a verified equivalent part number within the same family. Designers should verify that the alternative package or suffix does not alter electrical characteristics or mounting requirements.