2SD21780RA

Single Bipolar Transistors Overview

The Panasonic 2SD2178 is a silicon NPN epitaxial planar power transistor designed for low-frequency output amplification. It features a low collector-emitter saturation voltage and supports a large collector current of up to 2A, with a peak rating of 3A. The device operates with a maximum collector-emitter voltage of 50V and a collector-base voltage of 50V. It has a collector power dissipation of 1.5W at 25°C ambient temperature and a junction temperature limit of 150°C. The component utilizes an MT-3-A1 package.

Single Bipolar Transistors Feature Summary

• Low collector-emitter saturation voltage
• Large collector current capability

Single Bipolar Transistors Applications

• Low-frequency output amplification

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against official documentation to confirm exact binning or packaging specifications. Confirm the current lifecycle status directly with the manufacturer, as maintenance and discontinuation schedules are subject to change without notice. Ensure compliance with RoHS directives and standard application guidelines before procurement.

Single Bipolar Transistors Selection Notes

Select this component for circuits requiring high DC current gain and efficient switching at low frequencies. Consider the thermal resistance characteristics when designing heat dissipation strategies, particularly if operating near the maximum power dissipation limits. Verify that the required forward current transfer ratio aligns with the available rank classifications.

Single Bipolar Transistors Part Context

This component belongs to the category of discrete semiconductor transistors manufactured by Panasonic Electronic Components. It is classified as a medium-power NPN transistor intended for general electronic equipment applications such as office equipment, communications gear, and household appliances.

Single Bipolar Transistors Replacement Considerations

Consult the manufacturer's official replacement list for verified substitutes. Cross-reference pinouts and electrical ratings carefully when considering alternative components from other manufacturers.

Single Bipolar Transistors FAQ

What is the maximum collector current rating?

The absolute maximum collector current (IC) is rated at 2A, with a peak collector current (ICP) of 3A.

What is the typical forward current transfer ratio?

The forward current transfer ratio (hFE) varies by rank, typically ranging from 120 to 340 depending on the specific classification and collector current conditions.

Is the device compliant with environmental directives?

Yes, the product complies with the RoHS Directive (EU 2002/95/EC).