BF 5030 E6327

Overview

The BF5030 is a silicon N-channel MOSFET tetrode designed for UHF and VHF tuner input stages with AGC functionality. It supports 5 V and 3 V operations, featuring integrated ESD gate protection diodes. Key electrical parameters include a drain-source voltage of 8 V, continuous drain current of 25 mA, and forward transconductance of 41 mS at 10 mA drain current. The device exhibits low noise figures, ranging from 0.9 dB at 45 MHz to 1.3 dB at 800 MHz. Power gain reaches 34 dB at 45 MHz and 24 dB at 800 MHz under specified bias conditions.

Feature Summary

• Designed for input stages of UHF and VHF tuners with automatic gain control function
• Integrated electrostatic discharge (ESD) gate protection diodes
• Supports both 5 V and power-saving 3 V operational modes
• Qualified according to AEC Q101 standards

Applications

• UHF tuner input stages
• VHF tuner input stages
• RF amplification circuits requiring AGC

Procurement Notes

Verify the specific package variant (SOT143, SOT143R, or SOT343) required for your design, as pin configurations differ between packages. Confirm RoHS compliance and Pb-free status during sourcing. Ensure handling precautions are observed due to ESD sensitivity. Check thermal resistance values against your board's thermal management capabilities to ensure total power dissipation limits are not exceeded at operating temperatures.

Selection Notes

Select the appropriate package based on PCB layout constraints and thermal requirements. The BF5030W offers lower thermal resistance compared to BF5030 and BF5030R variants. Consider the operating frequency range when evaluating noise figure and power gain specifications. Ensure the biasing circuitry aligns with the specified gate voltages for optimal performance in either 3 V or 5 V systems.

Part Context

The BF5030 series includes variants BF5030, BF5030R, and BF5030W, differing primarily in package type and thermal characteristics. These components are part of Infineon's portfolio of RF MOSFETs optimized for tuner applications. The series is engineered to provide high gain and low noise while maintaining robust cross-modulation performance during gain reduction.

Replacement Considerations

No official substitute part numbers are documented in the datasheet. When considering alternatives, verify compatibility with UHF/VHF tuner input stage requirements, including matching pin configurations for SOT143, SOT143R, or SOT343 packages. Ensure replacement devices meet similar electrical specifications for drain-source voltage, forward transconductance, and noise figure.