BFU910FX sourcing guide: Obsolete part alternatives & suppliers

The BFU910FX is an NPN wideband silicon germanium (SiGe) bipolar RF transistor developed by NXP Semiconductors Mouser Lisleapex. Designed for high-frequency, low-noise applications, it is commonly used in RF front-ends, satellite receivers (LNBs), and low-noise amplifiers (LNAs) Mouser.

Key Technical Specifications

* Transistor Type: NPN RF Bipolar Digikey

* Maximum Ratings: 9.5V Collector-Emitter Voltage ($V_{CEO}$), 15mA Collector Current ($I_C$), and 300mW Power Dissipation ($P_{tot}$) Cytechsystems Digikey.

* Performance: Offers a gain of 13.5 dB Cytechsystems Worldictown.

* Package: SOT-343F (4-DFP plastic surface mount) Mouser Alibaba.

Market Trends & Lifecycle Insights

* Obsolescence: The BFU910FX reached its End-of-Life (EOL) status on May 30, 2019, and is no longer in active production by NXP Mouser Digikey.

* Availability: While obsolete at major retailers like Mouser and DigiKey, it remains available in the wholesale secondary market, primarily from suppliers in Shenzhen, China . Pricing for "New Old Stock" ranges significantly from $0.001 to $0.07 per piece depending on the supplier and volume .

* Market Shift: The industry is moving toward integrated RF solutions and next-generation SiGe or Gallium Nitride (GaN) technologies. For new designs, manufacturers recommend substitutes such as:

* onsemi: 2SC5226A-4-TL-E Digikey

* Infineon: BFP193WH6327XTSA1 Mouser

* Diodes Inc: MMBTH10-7-F Digikey

I have identified over 80 active B2B listings for this component, with detailed pricing and supplier info available in the attached file.