BFP640FESDH6327XTSA1

Overview

The BFP640FESDH6327XTSA1 is an NPN Silicon Germanium RF transistor manufactured by Infineon Technologies. It is designed for high-frequency applications, specifically operating within the C-band. The device features a low noise figure and high reliability characteristics suitable for sensitive RF circuits. It is housed in a small outline package with four terminals (R-PDSO-G4). Key electrical parameters include a maximum collector-emitter voltage of 4 V, a maximum DC collector current of 0.05 A, and a minimum DC current gain (hFE) of 110. The component supports operation up to a maximum temperature of 150 °C.

Feature Summary

• Utilizes Silicon Germanium technology for optimized RF performance
• Engineered for low noise and high reliability in signal processing
• Suitable for compact designs requiring small outline packaging

Applications

• C-band radio frequency amplification
• Low noise amplifier stages in communication systems
• High frequency signal processing circuits

Procurement Notes

Verify component authenticity through official Infineon channels or authorized distributors. Confirm package integrity and lead marking accuracy upon receipt. Ensure storage conditions comply with moisture sensitivity level requirements to prevent damage before soldering. Check for end-of-life status as discontinuation may affect long-term supply availability.

Selection Notes

Select this component when designing circuits requiring NPN Silicon Germanium RF transistors with specific C-band performance. Compare minimum DC current gain and collector-emitter voltage limits against circuit requirements. Consider the small outline package dimensions for PCB layout constraints. Evaluate thermal management needs given the 150 °C maximum operating temperature specification.

Part Context

This part belongs to the BFP640 series of RF bipolar transistors from Infineon. It shares the core Silicon Germanium technology with variants like BFP640H6327XTSA1 but differs in specific electrical tolerances and packaging suffixes. The FESD designation typically indicates automotive qualification or specific tape-and-reel packaging configurations distinct from standard commercial versions.

Replacement Considerations

Direct substitutes must match the NPN Silicon Germanium type, 4-terminal SOT-89 or similar small outline package, and 4V Vceo rating. Verify equivalent hFE and frequency response characteristics. Cross-reference with other BFP640 variants if pinout and electrical specs align exactly.