UP0421000L

Overview

The UP0421000L is a composite transistor from the Panasonic UP0421x Series, featuring two integrated NPN elements within a single SSMini6-F1 package. It is designed for switching and digital circuits with a collector-emitter voltage of 50V and a maximum collector current of 100mA. The device incorporates an internal base resistor (R1) of 47 kΩ to facilitate direct logic interfacing. Key electrical characteristics include a transition frequency of 150MHz and a forward current transfer ratio (hFE) ranging from 160 to 460 at 5mA. Total power dissipation is rated at 125mW.

Feature Summary

• Dual NPN transistors integrated into a single surface-mount package
• Built-in base resistor eliminates external biasing components
• Optimized for reduced mounting area and simplified assembly

Applications

• General-purpose switching circuits
• Digital logic interface applications
• Standard office equipment and communications hardware

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the specific part number matches the required resistance value and package type. Ensure storage conditions comply with moisture sensitivity levels to prevent damage prior to soldering.

Selection Notes

Select this component when space constraints require dual transistors in one footprint. Verify that the 47kΩ internal resistance aligns with the driving logic voltage levels. Check thermal requirements against the 125mW total power dissipation limit under expected operating temperatures.

Part Context

This component belongs to the UP0421x series of composite transistors manufactured by Panasonic Electronic Components. The series provides various configurations of integrated resistors to suit different circuit requirements while maintaining a consistent physical footprint.

Replacement Considerations

Direct substitutes must match the SSMini6-F1 package and 47kΩ internal resistance configuration. Verify pinout compatibility and ensure equivalent electrical ratings for VCEO, IC, and PT.