Fairchild Semiconductor part numbers

Fairchild Semiconductor (FDS/FQP MOSFETs, FAN power ICs, FSA switches, FOD optocouplers, NC7 TinyLogic) was acquired by ON Semiconductor (now onsemi) in 2016.

Fairchild Semiconductor is now onsemi (2016). We quote Fairchild Semiconductor parts — current, obsolete and end-of-life — and parts that carry older Fairchild Semiconductor markings. See also all onsemi part numbers.

1,029 Fairchild Semiconductor heritage part numbers

Part-number families from Fairchild Semiconductor, listed under their current manufacturer.

Part numberManufacturerTypePackageKey specs
FMS6141S5X onsemi Video Interface ICs SC-70-5 4.75V~5.25V-40°C~+85°C
FMS6143CSX onsemi Video Amplifiers SOIC-8 4.75V~5.25V3
FMS6363CSX onsemi Video Amplifiers SOIC-8 4.75V~5.25VDriver
FMS6364AMTC14X onsemi Video Interface ICs TSSOP-14 3.14V~5.25VDriver
FMS6501MSA28X onsemi Analog Switches - Special Purpose SSOP-28-208mil 3.3V, 5V9
FMS6502MTC24X onsemi Analog Switches, Multiplexers TSSOP-24 3.135V~5.25V6
FOD3120S onsemi Digital Isolators SMD-8P 2.5A5kV
FOD3180SD onsemi Gate Drive ICs SOIC-8-6.6mm
FOD8332V onsemi LED Drivers SOP-16-300mil 2.5A1
FOD8333 onsemi LED Drivers SO-16-300mil 1
FOD8333V onsemi LED Drivers SO-16-300mil
FSA1153UCX onsemi Analog Switches, Multiplexers WLCSP-12(1.4x1.6) 2.7V~5.5V-40°C~+85°C
FSA1156P6X onsemi Analog Switches, Multiplexers SOT-363 1.65V~5.5V1
FSA1157P6X onsemi Analog Switches, Multiplexers SC-70-6 1.65V~5.5V1
FSA1256L8X onsemi Analog Switches, Multiplexers QFN-8 1.65V~5.5V2
FSA1257L8X onsemi Signal Switches, Multiplexers, Decoders MicroPak-8 1.65V~5.5V1uA
FSA1259AK8X onsemi Analog Switches, Multiplexers VFSOP-8-2.3mm 1.65V~5.5V2
FSA2147K8X onsemi Analog Switches, Multiplexers VFSOP-8-2.3mm 2.7V~4.3V-40°C~+85°C
FSA221L10X onsemi Analog Switches - Special Purpose MicroPak-10(1.6x2.1)
FSA221UMX onsemi Analog Switches - Special Purpose UFQFN-10(1.4x1.8) 720MHzUSB
FSA2257L10X onsemi Analog Switches, Multiplexers MicroPak-10 1.65V~5.5V2
FSA2257MUX onsemi Analog Switches, Multiplexers MSOP-10 1.65V~5.5V2
FSA2259UMX onsemi Analog Switches, Multiplexers UQFN-10 1.65V~4.4V2
FSA2267AL10X onsemi Interface - Specialized MicroPak-10(1.6x2.1) 2.3V~4.3V-40°C~+85°C
FSA2267AMUX onsemi Analog Switches, Multiplexers MSOP-10 2.3V~4.3V2
FSA2267L10X onsemi Analog Switches, Multiplexers MicroPak-10 1.65V~3.6V-40°C~+85°C
FSA2269L10X onsemi Interface - Specialized MicroPak-10(1.6x2.1) 500nA-40°C~+85°C
FSA2269TSUMX onsemi Analog Switches, Multiplexers UMLP-10(1.4x1.8) 1.65V~4.5V2
FSA2269UMX onsemi Analog Switches, Multiplexers UFQFN-10(1.4x1.8) 1.65V~4.5V2
FSA2275AUMX onsemi Analog Switches, Multiplexers UMLP-12(1.8x1.8) 2.5V~5.5V2
FSA2275UMX onsemi Analog Switches, Multiplexers UMLP-12(1.8x1.8) 2.5V~5.5V2
FSA2276UMX onsemi Analog Switches, Multiplexers UMLP-12(1.8x1.8) 1.65V~5.5V2
FSA2457UMX onsemi Analog Switches, Multiplexers UMLP-16(1.8x2.6) 2.7V~3.6V4
FSA2466UMX onsemi Analog Switches, Multiplexers UFQFN-16(1.8x2.6) 1.65V~4.45V2
FSA2467MPX onsemi Analog Switches, Multiplexers WFQFN-16(3x3) 1.65V~4.3V2
FSA2567MPX onsemi Analog Switches, Multiplexers WFQFN-16(3x3) 1.65V~4.3V4
FSA2567UMX onsemi Analog Switches, Multiplexers UFQFN-16(1.8x2.6) 1.65V~4.3V4
FSA3000L10X onsemi Interface - Specialized MicroPak-10(1.6x2.1) USB4.92Gbps
FSA3000L10X-F131 onsemi Interface - Specialized MicroPak-10(1.6x2.1) USB4.92Gbps
FSA3157L6X onsemi Analog Switches, Multiplexers MicroPak-6 1.65V~5.5V1
FSA321UMX onsemi Analog Switches, Multiplexers UFQFN-10(1.4x1.8) 1.8V~4.3V-40°C~+85°C
FSA3357K8X onsemi Analog Switches, Multiplexers US-8 1.65V~5.5V1
FSA4157AL6X onsemi Analog Switches, Multiplexers MicroPak-6 2.7V~5.5V1
FSA4157AP6X onsemi Analog Switches, Multiplexers SC-70-6 2.7V~5.5V1
FSA4157L6X onsemi Analog Switches / Multiplexers DFN-6(1x1.5) 1.65V~5.5V1
FSA4157P6X onsemi Analog Switches, Multiplexers SC-70-6(SOT-363) 1.65V~5.5V-40°C~+85°C
FSA4159L6X onsemi Signal Switches / Encoders & Decoders / Multiplexers MicroPak-6 1.65V~5.5V1
FSA4159P6X onsemi Analog Switches, Multiplexers SC-70-6 1.65V~5.5V1
FSA4476UCX onsemi Analog Switches / Multiplexers WLCSP-25 2.7V~5.5V, 4V~20V-40°C~+85°C
FSA4480UCX onsemi Analog Switches, Multiplexers WLCSP-25(2.2x2.3) 2.7V~5.5V-40°C~+85°C
FSA5157L6X onsemi Analog Switches, Multiplexers UFDFN-6 1.65V~4.3V-40°C~+85°C
FSA5157P6X onsemi Analog Switches, Multiplexers SC-70-6 1.65V~4.3V-40°C~+85°C
FSA515UCX onsemi Analog Switches, Multiplexers WLCSP-4(0.8x0.8) 2.5V~5.5V1
FSA550BUCX onsemi Analog Switches, Multiplexers WLCSP-12(1.2x1.6) 1.6V~3V4
FSA550UCX onsemi Analog Switches, Multiplexers WLCSP-12(1.2x1.6) 1.6V~3V-40°C~+85°C
FSA551UCX onsemi Analog Switches, Multiplexers WLCSP-9(1.2x1.2) 1.5V~3V2
FSA553UCX onsemi Analog Switches, Multiplexers WLCSP-9(1.2x1.2) 1.5V~3V2
FSA6157L6X onsemi Analog Switches, Multiplexers MicroPak-6 1.65V~4.3V1
FSA634UCX onsemi Analog Switches, Multiplexers WLCSP-36(2.1x2.1) 1.65V~4.5V4
FSA641UMX onsemi Analog Switches, Multiplexers QFN-20-EP(3x3) 2.65V~4.3V2

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Frequently asked questions

Is Fairchild Semiconductor still in business?

Fairchild Semiconductor (FDS/FQP MOSFETs, FAN power ICs, FSA switches, FOD optocouplers, NC7 TinyLogic) was acquired by ON Semiconductor (now onsemi) in 2016.

Can I still buy Fairchild Semiconductor parts?

Yes. PartnerSemi quotes Fairchild Semiconductor part numbers, including obsolete and end-of-life parts and parts with old Fairchild Semiconductor markings. Send the part number and quantity; we reply with price, lead time, date code and origin. We are an independent distributor, not an authorized Fairchild Semiconductor or onsemi distributor.

PartnerSemi is not affiliated with Fairchild Semiconductor or onsemi. Brand names are used to identify parts only.