UNR222400L

Overview

The Panasonic UNR222400L is a silicon NPN epitaxial planar pre-biased transistor designed for digital circuits. It integrates an internal resistor network consisting of R1 (2.2 kΩ) and R2 (10 kΩ). The device features a Mini3-G1 package with a collector-emitter voltage rating of 50 V, a maximum collector current of 500 mA, and a total power dissipation of 200 mW at 25°C. It exhibits a transition frequency of 200 MHz and a DC current gain of 60 at IC = 100 mA.

Feature Summary

• Integrates dual resistors to reduce component count and equipment size
• Miniature surface-mount package suitable for automatic insertion
• Optimized for digital circuit switching applications

Applications

• Digital logic interface circuits
• Switching applications in general electronic equipment
• Driver stages for low-power loads

Procurement Notes

Verify the specific lifecycle status as the datasheet indicates maintenance or discontinued classifications. Confirm RoHS compliance requirements against EU Directive 2002/95/EC. Ensure the ordering suffix matches the required tape-and-reel packaging format. Validate that the internal resistance values align with the design specifications before finalizing procurement.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for digital switching. The UNR2224 variant specifically provides a 2.2 kΩ base resistor and a 10 kΩ emitter resistor. Ensure the operating ambient temperature remains within the specified range to maintain the 200 mW power dissipation rating without derating.

Part Context

This part belongs to the UNR222x series of pre-biased transistors manufactured by Panasonic Industry. The series includes variants with different internal resistor configurations to suit various drive requirements. These components are designed to replace discrete transistor-resistor combinations in space-constrained designs.

Replacement Considerations

Direct substitutes include other UNR2224 equivalents from different manufacturers offering identical 2.2 kΩ and 10 kΩ internal resistance values. Verify pinout compatibility and package dimensions (Mini3-G1/SC-59) to ensure mechanical fit during replacement.

FAQ

What are the internal resistance values for the UNR2224?

The UNR2224 contains a base resistor (R1) of 2.2 kΩ and an emitter resistor (R2) of 10 kΩ.

What is the maximum collector current rating?

The absolute maximum collector current (IC) is rated at 500 mA.

Is this component suitable for high-frequency applications?

Yes, it has a transition frequency (fT) of 200 MHz, making it suitable for standard digital switching frequencies.