2SD22490RA

Single Bipolar Transistors Overview

The Panasonic 2SD22490RA is a silicon NPN epitaxial planar transistor designed for low-frequency power amplification. It features a collector-emitter voltage of 20 V and a continuous collector current rating of 5 A, with a peak current capacity of 8 A. The device dissipates up to 1 W of power at 25°C ambient temperature. Electrical characteristics include a minimum forward current transfer ratio (hFE) of 230 at 0.5 A and a transition frequency of 150 MHz. It utilizes the MT-2-A1 through-hole package.

Single Bipolar Transistors Feature Summary

• Low collector-emitter saturation voltage for high efficiency
• Optimized operation with low-voltage power supplies
• Radial taping supply option available

Single Bipolar Transistors Applications

• Low-frequency power amplification circuits
• General electronic equipment
• Household appliances

Single Bipolar Transistors Procurement Notes

Verify the exact ordering suffix against the official Panasonic datasheet to confirm pinout and packaging specifications. Confirm compliance with RoHS directives as stated in the documentation. Check the manufacturer's website for the latest lifecycle status, as this component may be subject to maintenance or discontinuation plans.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring moderate power handling with a 20 V collector-emitter limit. Ensure the design accommodates the 1 W power dissipation requirement using an appropriate heatsink or copper foil area. Verify that the required hFE gain falls within the specified R or S rank classifications for the target operating current.

Single Bipolar Transistors Part Context

This part belongs to the Panasonic 2SD2249 series of small signal bipolar transistors. It is manufactured by Panasonic Electronic Components and is classified as a silicon NPN epitaxial planar type. The component is intended for standard commercial applications rather than specialized automotive or aerospace environments.

Single Bipolar Transistors Replacement Considerations

Consult the official Panasonic replacement guide for verified substitute part numbers. Do not assume direct compatibility with other manufacturers' components without verifying absolute maximum ratings and electrical characteristics.