UP0421300L

Overview

The UP0421300L is a composite transistor from the Panasonic UP0421x series, featuring two NPN silicon epitaxial planar transistors integrated into a single SSMini6-F package. It includes built-in base resistors to reduce mounting area and assembly costs. Key electrical ratings include a collector-emitter voltage of 50 V, a collector current of 100 mA, and a total power dissipation of 125 mW at 25°C. The device incorporates a 47 kΩ resistor (R1) with a tolerance of ±30%. Transition frequency is specified at 150 MHz under standard test conditions.

Feature Summary

• Dual NPN transistors integrated into a compact surface-mount package
• Built-in base resistors designed to minimize circuit board space
• Optimized for switching and digital logic applications

Applications

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

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status against the latest manufacturer documentation. Ensure storage conditions remain within specified limits to prevent degradation. Validate pinout alignment during PCB assembly to avoid connection errors.

Selection Notes

Select this component when dual NPN switching functionality with integrated biasing is required in a minimal footprint. Evaluate thermal management requirements as power dissipation decreases linearly with ambient temperature. Verify that the internal resistance values match the specific logic gate drive requirements of the target application.

Part Context

This part belongs to the UP0421x family of composite transistors manufactured by Panasonic Electronic Components. The series provides various configurations of dual NPN transistors with different internal resistor combinations. These components are engineered to simplify circuit design by reducing the number of discrete components needed for basic switching tasks.

Replacement Considerations

Direct substitutes include other models within the UP0421x series such as the UP04210 or UP04211, provided their internal resistance values align with the circuit design. Cross-brand replacements require verification of pin compatibility and matching electrical characteristics.