BFU520X: NPN wideband silicon RF transistor

NPN silicon RF transistor for high speed, low noise applications in a plastic, 4-pin dual-emitter SOT143B package.

The BFU520X is part of the BFU5 family of transistors, suitable for small signal to medium power applications up to 2 GHz.

Outline 3d SOT143b
Data Sheets (1)
Name/DescriptionModified Date
NPN wideband silicon RF transistor (REV 2.0) PDF (301.0 kB) BFU520X05 Mar 2014
Application Notes (2)
Name/DescriptionModified Date
BFU520X ISM 433 MHz LNA design (REV 1.0) PDF (945.0 kB) AN1143305 Feb 2014
BFU520X ISM 866 MHz LNA design (REV 1.0) PDF (797.0 kB) AN1143405 Feb 2014
Users Guides (1)
Name/DescriptionModified Date
User Manual BFU5xx series starter kits (REV 1.0) PDF (2.2 MB) UM1077222 Jan 2014
Brochures (1)
Name/DescriptionModified Date
Design with confidence using our latest RF discrete (REV 1.0) PDF (782.0 kB) 7501750107 Jan 2014
Package Information (1)
Name/DescriptionModified Date
plastic surface-mounted package; 4 leads (REV 1.0) PDF (225.0 kB) SOT143B08 Feb 2016
Packing (2)
Name/DescriptionModified Date
Tape reel SMD; standard product orientation 12NC ending 215 (REV 1.0) PDF (187.0 kB) SOT143B_21507 Nov 2012
Tape reel SMD; standard product orientation 12NC ending 235 (REV 1.0) PDF (187.0 kB) SOT143B_23507 Nov 2012
Supporting Information (2)
Name/DescriptionModified Date
Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE30 Sep 2013
Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE30 Sep 2013
Design Support
SPICE model
S-Parameters
Ordering Information
ProductStatusPackage versionPackage nameGenerationgenerationfT [typ] (GHz)VCEO [max] (V)IC [max] (mA)Ptot [max] (mW)PolarityNF (dB)@f (MHz)@IC (mA)@VCE (V)
BFU520XActiveSOT143BSOT143B5th10.51230450NPN0.790018
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateMSLMSL LF
BFU520XSOT143BReflow_Soldering_Profile Wave_Soldering_Profile
Reflow_Soldering_Profile Wave_Soldering_Profile
Reel 7" Q3/T4ActiveBFU520XAR (9340 677 06215)%TEBFU520XAlways Pb-free11
Reel 11" Q3/T4, LargePackActiveBFU520XVL (9340 677 06235)%TEBFU520XAlways Pb-free11
NPN wideband silicon RF transistor bfu520x
BFU520X ISM 433 MHz LNA design bfu520x
BFU520X ISM 866 MHz LNA design bfu520x
User Manual BFU5xx series starter kits bfu550xr
Design with confidence using our latest RF discrete bfu590q
BFU5XX family ADS design kit v2 BFU590Q
Installation manual for NXP BFU5XX family ADS_design kit v2 BFU590Q
BFU5xx family SPICE GP model v2 BFU590Q
BFU520X: S-parameter and Noise Figure 400 MHz - 2 GHz BFU520X
BFU520X: S-parameter 40 MHz - 6 GHz BFU520X
plastic surface-mounted package; 4 leads prtr5v0u2x
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
Tape reel SMD; standard product orientation 12NC ending 215 prtr5v0u2x
Tape reel SMD; standard product orientation 12NC ending 235 prtr5v0u2ax
BF996S