Bfr90a
Overview
Product sourcing insights & recommendations
The BFR90A is a legacy silicon bipolar NPN RF transistor designed for low-noise amplification and wide-band antenna applications up to the GHz range. FreeRf-Microwave While it remains a "workhorse" for repairs and simple VHF/UHF designs, the market is shifting toward modern Silicon Germanium (SiGe) alternatives that offer significantly lower noise floors and higher gain. Reddit
Technical Analysis
- Frequency & Gain: Features a transition frequency ($f_T$) of 6 GHz and a power gain of ~18 dB at 500 MHz. Rf-MicrowaveRf-Microwave
- Noise Performance: Typically offers a noise figure of 1.6 to 2.0 dB at 800 MHz. Rf-Microwave
- Physical Profile: Encapsulated in a plastic SOT-37 package with a maximum collector current of 30 mA. Rf-MicrowaveRf-Microwave
Market Trends (2026 Outlook)
- Growth reset: The broader consumer tech and durable goods market is projected to flatten in 2026 (-0.4% YoY) as demand normalizes after the 2025 government trade-in policies in regions like China. NielseniqBusinesswire
- Premiumization: Demand is shifting toward high-performance components (like BFU530) driven by AI-native PCs and 5G smartphone replacement cycles, which may further push legacy parts like the BFR90A into "maintenance-only" status. NielseniqBusinesswire
Strategic Alternatives
- BFR193: A modern SOT-23 alternative offering a lower noise figure (~1.0 dB) and higher current handling (80 mA), providing a balance of performance and stability. Reddit
- BFU530: The top choice for high-performance LNAs, utilizing SiGe technology for noise figures < 1.0 dB, though it requires careful PCB layout to avoid oscillation. Reddit
Pricing for BFR90A and its direct equivalents (like BFR91A) typically ranges from $0.60 to $1.90 depending on the quantity and supplier. I have compiled a list of available BFR90A-series products and suppliers for your review in the attached file.
Based on the technical specs and market data, you may want to explore:
Bfr90a Transistor Npn Rf Amplifier Sot 37
Products · Top picks & verified manufacturers
BFR91A RF Transistor NPN High Frequency SOT-23
Shenzhen Anterwell Technology Ltd🇨🇳CN13 yrs
High Quality Silicon NPN Planar RF Transistor TO-50 BFR91A
Shenzhen Jeking Electronic Corp.verified🇨🇳CN11 yrs
NFQC 2SC1971 RF Transistor NPN Silicon for FM RF Amplifier Circuit Radio Application TO-220
Shenzhen Nanfeng Quancheng Electronics Co., Ltd.🇨🇳CN4 yrs
MRF340 NPN Silicon RF Power Transistor VHF Radio Amplifier AM signal
Shenzhen Keyongbang Electronic Co., Ltd.🇨🇳CN4 yrs
10 Pcs/lot NPN Transistor 40 V 25 MA 550 MHz 150 MV/0.15 V SOT-23 NB Common Emitter IF/RF Amplifier
BGY925N UHF Amplifier Module SOT-365 NPN Silicon Planar Transistor Silicon MOSFET UHF Amplifier Module BGY925N
Shenzhen Oufade Electronics Co., Ltd.verified🇨🇳CN5 yrs
2SC3324-GR Screen Printing CBG NPN Transistor SOT23 Audio Amplifier SMD Electronic Component Chip IC BOM Quote Fast Delivery
Shenzhen Hainayu Electronics Co., Ltd.verified🇨🇳CN6 yrs
BF423 BF423PBF Through Hole Transistor | High-Frequency NPN TO-92 Low-Noise RF Amplifier Chip B891
2SC3356 SOT-23 NPN RF Transistor 7GHz Low Noise Microwave Amplifier Original Brand Surface Mount R23 R24 R25
BF599 NPN Transistors 40V 25mA 550MHz 150mV/0.15V SOT-23 NB Common emitter IF/RF amplifier 10pcs/lot
Shenzhen Goldeleway Electronics Technology Co., Ltd.verified🇨🇳CN17 yrs
Transistors SC-101, SOT-883 BFR 705L3RH E6327 Electronic Chips Component Authorized Distributor
Shenzhen Cico Technology Co., Ltd.🇨🇳CN10 yrs
BC817-40 NPN Triode Transistor 45V 0.5A 200mW SOT-323 SC-70 Package for Signal Amplification and Low Power Switch
Shenzhen Chipsrsun Technology Co., Ltd.🇨🇳CN1 yr
2SC3807 C3807 NPN 25V 2A High Hfe Low Frequency Amplifier Transistor
Shenzhen Boruijintong Technology Co., Ltd.🇨🇳CN5 yrs
Components Electronic BFR 360F E6327 SOT-723 Transistors Authorized Distributor
Bipolar Rf Transistors Other Ics RF TRANS NPN 12V 6GHZ SOT-23 BFR93AE6327HTSA1
Authorized Distributor Buy Online Electronic Components BFR 380T E6327 SC-75, SOT-416 Transistors
Shenzhen Wisdtech Technology Co., Ltd.🇨🇳CN4 yrs
RF Small Signal Bipolar Transistor NPN 2SC3357-T1-A RF
Shenzhen M&h Electronic Technology Co., Ltd.🇨🇳CN8 yrs
2N2222 2222 Bipolar (BJT) Transistor NPN 40V 600mA 300MHz 625mW Through Hole TO-92 IC Chip Original and New
Shenzhen Quanyuantong Electronics Co., Ltd.verified🇨🇳CN17 yrs
Buy Electronics Components Online SOT-723 BFR 360F E6765 Transistors In Stock
Shenzhen Gangfasheng Technology Co., Ltd.🇨🇳CN5 yrs
RF Transistor NPN 15V 150mA 6GHz 1W Surface Mount PG-SOT223-4 BFG135A SOT-223 BFG135
Shenzhen King Joining Tech Co., Ltd.🇨🇳CN16 yrs
BFG591 SOT-23 SMD High Frequency Transistor NPN 7GHz Broadband RF Transistor
Ali Kaisheng Century (shenzhen) Electronics Co., Ltd.🇨🇳CN1 yr
Transistor 2N3055 TO-3 15A 60V NPN AF Amp Audio Power new and original IC
Shenzhen Junhao Yunxin Technology Co., Ltd.🇨🇳CN1 yr
New Original MRF581 TO-59 RF Bipolar Transistors NPN Silicon Power Supply Transistor 200 MA MRF171A MRF172 MRF173 MRF175
Shenzhen Mjl Technology Co., Ltd.🇨🇳CN7 yrs
BFG591 SOT-23 SMD High Frequency Transistor NPN 7GHz Broadband RF Transistor
Shenzhen XMS Technology Co., Ltd.🇨🇳CN8 yrs
Original RF TRANS NPN 4.7V 46GHZ SOT-343 Transistors SC-82A, SOT-343 Electronic Components And Parts BF776H6327XTSA1
RF Transistor NPN 15V 150mA 6GHz 1W Surface Mount PG-SOT223-4 BFG135A SOT-223 BFG135
BFG591 SOT-23 SMD High Frequency Transistor NPN 7GHz Broadband RF Transistor
Transistor 2N3055 TO-3 15A 60V NPN AF Amp Audio Power new and original IC
New Original MRF581 TO-59 RF Bipolar Transistors NPN Silicon Power Supply Transistor 200 MA MRF171A MRF172 MRF173 MRF175
BFG591 SOT-23 SMD High Frequency Transistor NPN 7GHz Broadband RF Transistor
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Sources & References
25 sources cited · Verified industry data & reports
BFR90A
cdn-reichelt.de
Observe precautions for handling. Silicon NPN Planar RF Transistor. Features. • High power gain. • Low noise figure.
BFR90A
Arrow Electronics
Parameter. Test condition. Symbol. Value. Unit. Collector base voltage. VCBO. 20. V. Collector emitter voltage. VCEO. 15. V. Emitter base voltage.
BFR90 Datasheet | Motorola Semiconductor
Datasheet4U
BFR90 FREQUENCY TRANSISTOR Datasheet | Motorola Semiconductor · Package : TO-50 · Pins : 3 · Max Collector Current : 25mA · Collector Emitter Voltage : 15V · Max ...
BFR90A Datasheet PDF and Equivalents Search
AllTransistors
Type Designator: BFR90A. Material of Transistor: Si. Polarity: NPN. Absolute Maximum Ratings. Maximum Collector Power Dissipation (Pc): 0.2 W.
BFR90A - Silicon bipolar NPN RF transistor, SOT-37
RF Microwave
Specifications · Polarity: NPN · Collector-emitter voltage (Vce max):. 15 V · Transition frequency (fT):. 6 GHz · Collector current (Ic max):. 30 mA · Dissipated ...
BFR90A Datasheet(PDF) - Vishay Siliconix
ALLDATASHEET.COM
Features • High power gain • Low noise figure • High transition frequency • Lead (Pb)-free component • Component in accordance to RoHS 2002/95/EC