XN0121F00L

Overview

The XN0121F00L 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 SC-74A (Mini5-G1) package. The component features a collector-emitter voltage rating of 50 V and a maximum collector current of 100 mA per element. Total power dissipation is rated at 300 mW. Electrical characteristics include a minimum forward current transfer ratio (hFE) of 30 at 5 mA, an input resistance of 4.7 kΩ, and a transition frequency of 150 MHz.

Feature Summary

• Integrates two emitter-coupled transistors with built-in resistors into one package to reduce mounting area and assembly costs.

Applications

• Switching circuits
• Digital logic circuits

Procurement Notes

Verify the specific ordering suffix F00L against official Panasonic documentation to confirm package type and compliance status. Check the manufacturer's lifecycle status page for maintenance or discontinuation notices before finalizing procurement plans.

Selection Notes

Select this component when space-constrained designs require dual NPN transistors with integrated biasing. Ensure the 50 V collector-emitter voltage and 100 mA current ratings meet circuit requirements. Verify that the 4.7 kΩ input resistance aligns with the driving source impedance.

Part Context

This part belongs to the XN0121 series of composite transistors from Panasonic. These devices are silicon NPN epitaxial planar types intended for general-purpose electronic equipment such as office machines, communications gear, and measuring instruments.

Replacement Considerations

The datasheet identifies UNR221F (UN221F) x 2 elements as the basic part number equivalent. Verify pinout compatibility and electrical parameters before substituting.