XN0121500L

Overview

The XN0121500L is a composite transistor device manufactured by Panasonic Electronic Components, designed for switching and digital circuits. It integrates two NPN epitaxial planar transistors with built-in bias resistors into a single EIAJ SC-74A Mini5-G1 package. Key electrical parameters include a collector-emitter voltage of 50V, a maximum collector current of 100mA, and a transition frequency of 150MHz. The device features a minimum DC current gain (hFE) of 160 at 5mA/10V, an input resistance of 10kΩ, and a total power dissipation rating of 300mW.

Feature Summary

• Integrates two emitter-coupled NPN transistors with built-in resistors in one package
• Reduces mounting area and assembly costs compared to discrete components
• Designed specifically for switching and digital circuit applications

Applications

• Switching circuits
• Digital logic circuits

Procurement Notes

Verify the component lifecycle status before procurement as this part may be discontinued or subject to maintenance plans. Confirm that the Mini5-G1 package dimensions match the PCB footprint requirements. Ensure the design accounts for the absolute maximum ratings to prevent damage during transient states such as power-on or mode-switching.

Selection Notes

Select this component when space reduction is critical for dual-transistor configurations requiring built-in biasing. Verify that the 50V collector-emitter voltage and 100mA current limits meet the circuit demands. Consider the 150MHz transition frequency for high-speed switching requirements and ensure the thermal management supports the 300mW total power dissipation.

Part Context

The XN0121500L belongs to the XN series of composite transistors from Panasonic. It serves as a dual-element replacement for discrete transistor pairs, effectively halving the required board space. The internal connection utilizes a common emitter configuration with specific pin assignments for collectors, emitters, and bases within the five-terminal Mini5-G1 package.

Replacement Considerations

The datasheet identifies UNR2215 (UN2215) as the basic part number equivalent for the individual elements. Designers replacing discrete components should verify that the combined characteristics of two UNR2215 units align with the integrated performance of the XN01215.