UNR32AT00L

Overview

The UNR32AT00L is a single NPN pre-biased bipolar junction transistor (BJT) manufactured by Panasonic Industry. It integrates internal biasing resistors within an SSS Mini3 (SOT-723) surface-mount package, designed for compact circuit layouts. The device features a maximum collector-emitter voltage of 50V and a continuous collector current rating of 80mA. Key electrical characteristics include a DC current gain (hFE) of at least 80 at 5mA and 10V, with a maximum saturation voltage of 250mV at 300µA base current and 10mA collector current. The transition frequency is specified at 150MHz, supporting high-speed switching applications while dissipating up to 100mW of power.

Feature Summary

• Integrated dual-resistor network simplifies PCB design by reducing component count and board space requirements.
• Optimized low-voltage saturation performance ensures efficient switching in digital logic interfaces.
• High-frequency response capability supports signal processing in RF and communication circuits.

Applications

• Digital logic level shifting and interface circuits
• Switching applications in portable consumer electronics
• Driver stages for small-signal amplification

Procurement Notes

Verify the specific suffix '00L' against the manufacturer's official datasheet to confirm resistor values and pinout configuration, as suffixes often denote specific resistance tolerances or packaging variations. Confirm end-of-life status through authorized distributors, as this part number may be discontinued. Request batch-specific test reports to ensure compliance with initial electrical parameters if used in critical designs.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for low-power switching. Compare hFE and Vce(sat) specifications against alternative pre-biased transistors to ensure compatibility with existing drive circuits. Ensure the SSS Mini3 footprint matches the target PCB layout constraints. Verify thermal dissipation capabilities relative to the application's duty cycle and ambient temperature conditions.

Part Context

This component belongs to Panasonic's UNR series of pre-biased transistors, which are engineered for miniaturization in modern electronic devices. The UNR32AT00L specifically utilizes the SSS Mini3 package, a standard form factor for space-constrained applications. It serves as a direct replacement for discrete BJT and resistor combinations in legacy designs seeking reduced assembly complexity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult Panasonic's official cross-reference guides or equivalent manufacturers for compatible NPN pre-biased transistors with matching SSS Mini3 footprints and similar electrical ratings.