UNR52A8G0L

Overview

The Panasonic UNR52A8G is a silicon NPN epitaxial planar transistor with built-in resistors, designed for digital circuits. It features an SMini3-F2 package with three pins: Base (1), Emitter (2), and Collector (3). The internal circuit includes a base resistor R1 of 0.51 kΩ and a collector-base resistor R2 of 5.1 kΩ. Key electrical ratings include a maximum collector current of 80 mA, collector-emitter voltage of 50 V, and total power dissipation of 150 mW at 25°C. The forward current transfer ratio (hFE) is guaranteed to be a minimum of 20 at IC = 5 mA. Transition frequency reaches 150 MHz.

Feature Summary

• Integrates two resistors within the transistor package to reduce component count and board space.
• Utilizes the SMini3-F2 surface-mount package for automated insertion and compact design.

Applications

• Digital logic circuits
• General electronic equipment
• Office equipment
• Communications equipment

Procurement Notes

Verify the current lifecycle status on the manufacturer's official website before procurement, as the datasheet indicates potential maintenance or discontinuation stages. Confirm that the required RoHS compliance meets specific regional directives. Ensure the ordering suffix matches the exact tape packing pitch and quantity specifications required for your assembly line equipment.

Selection Notes

Select this component when a standard NPN switching transistor requires integrated biasing or pull-down networks to simplify circuit topology. Verify that the 80 mA collector current limit and 150 mW power dissipation are sufficient for the intended load conditions. Consider the 0.51 kΩ input resistance value to ensure proper drive current compatibility with the controlling logic source.

Part Context

This device belongs to the Panasonic series of transistors with built-in resistors, specifically engineered for digital applications. The SMini3-F2 package provides a compact footprint suitable for high-density mounting. The inclusion of both base and collector-base resistors allows for versatile configuration in switching and logic interface roles without external passive components.

Replacement Considerations

Consult the manufacturer's official replacement guide for verified substitute part numbers. Do not assume functional equivalence based solely on pinout or generic NPN specifications. Verify that any alternative component matches the specific internal resistance values and package dimensions to ensure mechanical and electrical compatibility.