BFU530XAR

Overview

The BFU530XAR is an NPN silicon RF transistor designed for high-speed, low-noise applications in a plastic SOT143B package. It belongs to the BFU5 family, suitable for small signal to medium power operations up to 2 GHz. Key electrical parameters include a maximum collector-emitter voltage of 12 V (open base) or 24 V (shorted base), a collector current limit of 40 mA, and a total power dissipation of 450 mW. The device features a transition frequency of 11 GHz and achieves a minimum noise figure of 0.7 dB at 900 MHz with a maximum stable gain of 22 dB at the same frequency.

Feature Summary

• AEC-Q101 qualified for automotive reliability requirements
• High breakdown voltage capability supporting high supply voltages
• Low noise performance optimized for sensitive receiver front-ends
• Broadband operation extending up to 2 GHz

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 'AR' against official documentation to confirm tape and reel packaging details. Ensure the component matches the SOT143B package outline dimensions. Confirm AEC-Q101 qualification status if automotive compliance is required for the final design.

Selection Notes

Select this transistor when high breakdown voltage and low noise are critical simultaneously. The 11 GHz transition frequency supports broadband designs. Consider the 450 mW power dissipation limit and thermal resistance when designing heat management solutions for continuous operation.

Part Context

The BFU530X is part of the BFU5 series of wideband silicon RF transistors. This family includes variants like the BFU520X and BFU550X, offering different trade-offs between noise figure and gain. The BFU530X specifically targets applications requiring higher breakdown voltages compared to other members of the series.

Replacement Considerations

Direct substitutes within the BFU5 family include the BFU520X and BFU550X. Verify pin compatibility and specific electrical parameter overlaps before substitution. Other NPN RF transistors may require circuit redesign due to differing impedance and noise characteristics.