BFU520AVL

Overview

The BFU520AVL is an NPN silicon RF transistor from the BFU5 family, designed for small signal to medium power applications up to 2 GHz. It features a plastic SOT23 package with three terminals. Key electrical parameters include a collector-base voltage of 24 V and a collector-emitter voltage of 12 V (open base) or 24 V (shorted base). The device exhibits a minimum noise figure of 0.7 dB at 900 MHz and a maximum stable gain of 18 dB at the same frequency. Transition frequency is typically 10 GHz. Total power dissipation is rated at 450 mW with a solder point temperature limit of 87 °C.

Feature Summary

• Low noise performance suitable for sensitive receiver front-ends
• High breakdown voltage capability for robust operation
• Automotive Electronics Council AEC-Q101 qualification

Applications

• Broadband amplifiers operating up to 2 GHz
• Low noise amplifiers for ISM band applications
• ISM band oscillators

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging orientation and reel specifications. Ensure the component matches the required automotive qualification standards if deployed in vehicle systems. Cross-reference the marking code on the physical device with official datasheet tables to validate authenticity and manufacturing origin before integration into production circuits.

Selection Notes

Select this component when designing circuits requiring high supply voltages combined with low noise characteristics in the sub-2 GHz range. Evaluate thermal management requirements carefully, as total power dissipation is limited to 450 mW. Consider the SOT23 package constraints for PCB layout and heat transfer properties relative to the application's ambient temperature conditions.

Part Context

This part belongs to the BFU5 series of wideband silicon RF transistors manufactured by NXP Semiconductors. The series includes variants such as the BFU520YX and BFU530A, which share similar technological foundations but differ in specific electrical characteristics and package types like SOT363. The BFU520A variant specifically targets general-purpose RF amplification with defined automotive reliability standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.