2SC3940ARA

Single Bipolar Transistors Overview

The Panasonic 2SC3940ARA is a small signal NPN silicon bipolar transistor housed in a TO-92 package. It features a maximum collector current of 1A and a collector-emitter breakdown voltage of 25V. The device has a minimum DC current gain (hFE) of 170 and supports a maximum operating temperature of 150°C. It is RoHS compliant and designed for low-frequency output and driver amplification.

Single Bipolar Transistors Feature Summary

• Low collector-to-emitter saturation voltage
• Silicon NPN epitaxial planar construction
• Radial taping supply compatibility

Single Bipolar Transistors Applications

• Low-frequency output amplification
• Driver amplification circuits

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'ARA' against official Panasonic documentation to confirm it denotes the standard radial taping packaging variant rather than a distinct electrical specification. Ensure the component matches the TO-92NL-A1 package description found in general datasheets for this series.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring an NPN transistor with a 25V collector-emitter rating and 1A continuous current capability. The high hFE of 170 makes it suitable for driver stages where significant base current control is needed.

Single Bipolar Transistors Part Context

This part belongs to the 2SC3940 series of small signal transistors manufactured by Panasonic. It serves as the NPN counterpart to the PNP 2SA1534 series, forming complementary pairs for push-pull amplifier configurations in consumer electronics and audio equipment.

Single Bipolar Transistors Replacement Considerations

Officially documented complementary parts include the 2SA1534 and 2SA1534A.