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
FSL3276ALRN onsemi AC-DC Controllers And Regulators DIP-7 50kHz300mA
FSL336LRLX onsemi AC-DC Controllers And Regulators LSOP-7 50kHz650V
FSL336LRN onsemi AC-DC Controllers And Regulators DIP-7 50kHz650V
FSL337LRN onsemi AC-DC Controllers And Regulators DIP-7 45kHz~55kHz700V
FSL4110LRLX onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators LSOP-7-2.54mm -40°C~+125°C10Ω
FSL4110LRN onsemi Power Distribution Switches DIP-7 -40°C~+125°C
FSL518APG onsemi AC-DC Controllers And Regulators PDIP-7 100kHz800V
FSL518HPG onsemi AC-DC Controllers & Regulators PDIP-7 122kHz~138kHz800V
FSL538APG onsemi AC-DC Controllers And Regulators PDIP-7 100kHz800V
FSL538HPG onsemi AC-DC Controllers & Regulators PDIP-7 122kHz~138kHz800V
FSLV16211MTDX onsemi Signal Switches, Multiplexers, Decoders TSSOP-56-6.1mm 2.3V~3.6V10uA
KA1H0165RTU onsemi AC-DC Controllers & Regulators TO-220F-4 100kHz650V
KA1M0565RTU onsemi AC-DC Controllers And Regulators TO-220F-4 67kHz650V
KA2142C onsemi Interface - Specialized SIP-10 6mA, 22mA-20°C~+70°C
KA278R12CTU onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220F-4L 2A12V
KA2803B onsemi Power Management - Specialized DIP-8 400uA~580uA-25°C~+80°C
KA2803BDTF onsemi Comparators SOP-8 12V~20V400uA
KA2803CDTF onsemi Power Management - Specialized SOP-8
KA2807DTF onsemi Power Management Specialized - PMIC SOIC-8
KA2902DTF onsemi Operational Amplifier SOP-14 40mA1.5V~13V, -13V~-1.5V
KA2904 onsemi Operational Amplifier DIP-8 60mA1.5V~13V, -13V~-1.5V
KA2904DTF onsemi Operational Amplifier SOIC-8 20mA1.5V~13V, -13V~-1.5V
KA317MRTM onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-252-3(DPAK) 500mA1.2V~37V
KA337TU onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1.5A1.25V~37V
KA34063A onsemi DC-DC Converters DIP-8 100kHz1.5A
KA3525A onsemi DC-DC Converters DIP-16 500mA5V~5.2V
KA358 onsemi General Purpose Amplifiers DIP-8 30mA-16V~-1.5V, 1.5V~16V
KA358A onsemi Operational Amplifier DIP-8 20mA-16V~-1.5V, 1.5V~16V
KA358ADTF onsemi Operational Amplifier SOIC-8 30mA-16V~-1.5V, 1.5V~16V
KA358DTF onsemi Operational Amplifier SOIC-8 40mA-16V~-1.5V, 1.5V~16V
KA3843B onsemi DC-DC Controllers DIP-8 52kHz14mA
KA3883CDTF onsemi DC-DC Converters SOP-8 500kHz1A
KA431ADTF onsemi Voltage Reference TO-92-3 100mA2.47V~36V
KA431AZBU onsemi Voltage Reference TO-92-3 100mA2.495V~36V
KA431AZTA onsemi Voltage Reference TO-92 100mA2.5V~36V
KA431DTF onsemi Voltage References TO-92-3 2.5V~36V450uA
KA431LZTA onsemi Voltage Reference TO-92-3 100mA2.495V~36V
KA431SAMF2TF onsemi Voltage Reference SOT-23F-3 100mA2.495V~36V
KA431SAMFTF onsemi Voltage Reference SOT-23F-3L 100mA2.495V~36V
KA431SLMF2TF onsemi Voltage Reference SOT-23F-3 100mA2.495V~36V
KA431SLMFTF onsemi Voltage Reference SOT-23F-3 100mA2.495V~36V
KA431SMFTF onsemi Voltage Reference SOT-23 100mA2.5V~36V
KA5H0165RYDTU onsemi AC-DC Controllers & Regulators TO-220F-4 100kHz650V
KA5H0380RTU onsemi Power Distribution Switches TO-220F-4 90kHz~110kHz3A
KA5H0380RYDTU onsemi AC-DC Controllers & Regulators TO-220F-4 100kHz800V
KA5L0380RYDTU onsemi AC-DC Controllers And Regulators TO-220F-4 50kHz800V
KA5L0565RYDTU onsemi AC-DC Controllers And Regulators TO-220F-4 50kHz650V
KA5M0265RYDTU onsemi AC-DC Controllers & Regulators TO-220F-4 -25°C~+85°C5Ω
KA5M0365RTU onsemi AC-DC Controllers & Regulators TO-220F-4 67kHz650V
KA5M0365RYDTU onsemi AC-DC Controllers And Regulators TO-220F-4 67kHz650V
KA5M0380RTU onsemi AC-DC Controllers & Regulators TO-220F-4 67kHz3A
KA5M0380RYDTU onsemi AC-DC Controllers & Regulators TO-220F-4 61kHz~73kHz800V
KA7500B onsemi AC-DC Controllers & Regulators DIP-16 1kHz~300kHz250mA
KA7500C onsemi DC-DC Converters DIP-16 1kHz~200kHz200mA
KA7500CDTF onsemi AC-DC Controllers And Regulators SO-16 1kHz~200kHz200mA
KA75330ZTA onsemi Supervisor And Reset ICs TO-92-3 1-25°C~+85°C
KA7552A onsemi DC-DC Converters DIP-8 5kHz~600kHz1.5A
KA7553A onsemi DC-DC Converters DIP-8 5kHz~600kHz1.5A
KA7805AETU onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A5V
KA7806ETU onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A6V

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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.