BFP405FH6327XTSA1

Overview

The BFP405FH6327XTSA1 is a low noise silicon bipolar RF transistor designed for low current applications. It features a transition frequency (fT) of 25 GHz and a minimum noise figure (NFmin) of 1.25 dB at 1.8 GHz. The device provides an outstanding maximum stable gain (Gms) of 22.5 dB at 1.8 GHz. It is housed in a Pb-free, halogen-free thin small flat package (TSFP-4) with dimensions of 1.4 x 0.8 x 0.59 mm. The component supports a collector-emitter voltage (VCEO) of 4.5 V at 25 °C and a total power dissipation of 75 mW.

Feature Summary

• Optimized for low current applications with high linearity
• Low noise figure suitable for sensitive receiver stages
• High transition frequency enabling operation at microwave frequencies
• Halogen-free and lead-free compliant packaging

Applications

• Low noise amplifier (LNA) stages in communication systems
• RF front-end modules requiring minimal signal degradation
• Wireless infrastructure operating at 1.8 GHz and above

Procurement Notes

Verify the specific ordering suffix H6327XTSA1 against official Infineon documentation to confirm tape and reel packaging details. Confirm AEC-Q101 qualification status if automotive compliance is required for the design. Ensure ESD handling precautions are strictly followed during assembly due to device sensitivity.

Selection Notes

Select this component when designing circuits that require a balance of low noise performance and high transition frequency under low bias currents. Verify that the TSFP-4 package footprint matches the PCB layout constraints. Check thermal resistance values to ensure adequate heat dissipation within the specified junction temperature limits.

Part Context

This part belongs to the BFP405 series of low noise silicon bipolar RF transistors manufactured by Infineon Technologies. The series is characterized by its suitability for low current operations and high-frequency performance. The BFP405F variant specifically targets applications demanding high gain and low noise figures in compact form factors.

Replacement Considerations

Consult official Infineon replacement guides for verified substitutes. Cross-reference electrical parameters such as fT, NFmin, and Gms to ensure functional equivalence in existing designs.