BFP 405F E6327

Overview

The BFP 405F E6327 is a low noise silicon bipolar RF transistor designed for low current applications. It features a transition frequency of 25 GHz and a minimum noise figure of 1.25 dB at 1.8 GHz. The device operates with a collector-emitter voltage of 4.5 V and a maximum collector current of 25 mA. Total power dissipation is rated at 75 mW, with a junction temperature limit of 150 °C. It utilizes a TSFP-4 package measuring 1.4 x 0.8 x 0.59 mm.

Feature Summary

• Optimized for low current applications with high gain performance
• Low noise figure specification suitable for sensitive RF front ends
• High transition frequency enabling operation in microwave bands
• Halogen-free and Pb-free construction compliant with RoHS standards

Applications

• Low noise amplifier stages in communication systems
• RF signal processing circuits requiring minimal noise contribution
• Microwave receiver front ends operating at 1.8 GHz and above

Procurement Notes

Verify component authenticity through authorized Infineon channels or certified distributors. Confirm the specific ordering suffix matches project requirements. Check for AEC-Q101 qualification reports if automotive reliability is required. Ensure proper ESD handling protocols are followed during storage and assembly to prevent damage to the sensitive semiconductor structure.

Selection Notes

Select this component when low noise performance is critical in low current bias conditions. The 25 GHz transition frequency supports wideband RF applications. Consider the TSFP-4 package dimensions for PCB layout constraints. Evaluate thermal management needs as total power dissipation is limited to 75 mW. Compare against other SiGe options if higher breakdown voltages are necessary.

Part Context

This part belongs to the BFP405 series of low noise silicon bipolar transistors from Infineon Technologies. It shares the core electrical characteristics with variants like the BFP405H and BFP405FH but differs in packaging and specific ordering codes. The series is engineered for cost-effective RF solutions where silicon technology provides sufficient performance metrics.

Replacement Considerations

Direct substitutes include BFP405H6327XTSA1 and BFP405FH6327XTSA1. Verify pin compatibility and thermal resistance values before substitution. Ensure the replacement maintains the required noise figure and transition frequency specifications for the specific circuit design.

FAQ

What is the minimum noise figure specification?

The minimum noise figure (NFmin) is 1.25 dB at a frequency of 1.8 GHz.

What is the maximum collector current rating?

The maximum continuous collector current (IC) is rated at 25 mA.

Is the device qualified for automotive applications?

Yes, a qualification report according to AEC-Q101 is available for this component.