UNR32A700L

Overview

The Panasonic UNR32A700L is a silicon NPN epitaxial planar pre-biased transistor designed for digital circuits. It integrates a single internal base resistor (R1) with a nominal value of 22 kΩ, housed in an SSSMini3-F1 surface-mount package. Key electrical parameters include a collector-emitter breakdown voltage (VCEO) of 50 V, a maximum collector current (IC) of 80 mA, and a total power dissipation (PT) of 100 mW at 25°C. The device features a transition frequency (fT) of 150 MHz and a DC current gain (hFE) ranging from 160 to 460 at IC = 5 mA.

Feature Summary

• Integrates a built-in base resistor to simplify circuit design and reduce component count.
• Optimized for high-density mounting and equipment downsizing.
• Designed to contribute to low power consumption in digital applications.

Applications

• General-purpose digital logic circuits
• Switching applications in office equipment
• Communications equipment signal processing
• Household appliance control boards

Procurement Notes

Verify the specific lifecycle status directly with Panasonic Industry, as the datasheet indicates maintenance or discontinuation categories. Confirm that the SSSMini3-F1 package dimensions align with your PCB footprint requirements. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Request the latest Product Standards before final purchasing decisions.

Selection Notes

Select this component when a compact NPN switching solution with integrated biasing is required. The 22 kΩ internal resistor simplifies drive circuitry compared to discrete transistors. Verify that the 50 V collector-emitter voltage rating meets the system's supply voltage headroom. Consider the 100 mW power dissipation limit relative to ambient temperature derating curves for thermal management.

Part Context

This part belongs to the UNR32 series of pre-biased bipolar junction transistors manufactured by Panasonic Industry. These components are specifically engineered for digital switching tasks where space constraints and assembly efficiency are priorities. The SSSMini3-F1 package provides a small form factor suitable for modern surface-mount technology (SMT) production lines.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Panasonic cross-reference guides or distributor databases for equivalent SSSMini3-F1 packaged NPN pre-biased transistors with similar 50V/80mA ratings.