XP0421M00L

Overview

The Panasonic XP0421M is a silicon NPN epitaxial planar composite transistor designed for digital circuits. It integrates two elements into one SMini6-G1 package, effectively halving the required mounting area and assembly cost compared to discrete components. The device features built-in resistors, with an input resistance of 2.2 kΩ. Key electrical ratings include a collector-emitter voltage (VCEO) of 50 V, a collector current (IC) of 100 mA, and a total power dissipation (PT) of 150 mW at 25°C. The transition frequency (fT) is specified at 150 MHz.

Feature Summary

• Integrates two transistors with built-in resistors into a single compact package to reduce board space and assembly costs.

Applications

• Digital circuits
• General electronic equipment such as office equipment and measuring instruments

Procurement Notes

Verify the current lifecycle status directly with Panasonic before procurement, as the datasheet indicates potential maintenance or discontinuation phases. Confirm that the specific application falls within standard general electronics usage, as specialized automotive or life-support applications require separate consultation. Ensure compliance with RoHS directives and verify the latest product standards are obtained prior to final design implementation.

Selection Notes

Select this component when space constraints necessitate dual-transistor configurations in a minimal footprint. The integrated 2.2 kΩ resistor simplifies biasing networks in digital logic interfaces. Verify that the 50 V collector-emitter voltage and 100 mA current limits align with the target circuit requirements. Consider the SMini6-G1 package dimensions for PCB layout compatibility.

Part Context

This part belongs to the XP series of composite transistors manufactured by Panasonic Electronic Components. It serves as a direct replacement for older discrete dual-transistor setups, offering improved density. The internal connection mirrors two UNR221M units within a single housing, maintaining standard pinout conventions for ease of integration into existing designs.

Replacement Considerations

The datasheet explicitly lists the UNR221M as the basic part number equivalent. Designers should verify if the UNR221M meets all absolute maximum rating and electrical characteristic requirements for the specific application context.