UNR521WG0L

Overview

The UNR521WG0L is a Silicon NPN epitaxial planar transistor with built-in resistors, designed for digital circuits. It features a maximum collector-emitter voltage of 50 V and a continuous collector current rating of 100 mA. The device dissipates up to 150 mW of power at 25°C ambient temperature. It utilizes an SMini3-F2 package (S-Mini type) with three pins: Base, Emitter, and Collector. The component complies with the RoHS Directive (EU 2002/95/EC).

Feature Summary

• Integrates internal biasing resistors to reduce external component count.
• Utilizes compact S-Mini surface-mount packaging for automated insertion.

Applications

• Digital logic circuits
• General electronic equipment
• Office equipment

Procurement Notes

Verify the specific resistance values for R1 and R2 against official Panasonic documentation before procurement, as these parameters vary significantly across the UNR521xG series. Confirm that the intended application falls within standard general electronics usage, as the datasheet explicitly restricts use in aerospace, automotive, or life-support systems without prior consultation.

Selection Notes

Select this component when space constraints require a single package solution combining an NPN transistor and biasing resistors. Ensure the required resistance ratios align with available part numbers in the UNR521xG family. Verify that the 50 V voltage rating and 100 mA current limit are sufficient for the target circuit design.

Part Context

This component belongs to the UNR521xG Series manufactured by Panasonic Electronic Components. The series consists of various models differentiated primarily by their internal resistor configurations. These devices are engineered specifically for digital switching applications where board space optimization is a priority.

Replacement Considerations

Consult the official Panasonic semiconductor database for verified substitute part numbers. Cross-referencing requires matching the specific internal resistance values and the SMini3-F2 package dimensions to ensure functional compatibility.

FAQ

What is the transition frequency (fT) of the UNR521WG0L?

The datasheet does not provide a specific transition frequency value for the UNR521WG0L model; it only lists typical values for other variants in the series.

Is the UNR521WG0L suitable for automotive applications?

No. The datasheet specifies that the product is intended for standard applications such as office equipment and communications instruments, and advises consulting sales staff for automotive or safety-critical uses.

What is the pin configuration for the SMini3-F2 package?

Pin 1 is the Base, Pin 2 is the Emitter, and Pin 3 is the Collector.