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Fairchild Semiconductor

Fairchild Semiconductor is a semiconductor manufacturer producing Linear Regulators (LDO), Gate Drivers, DC-DC Switching Regulators, AC-DC Converters & Offline Switchers, PFC Controllers. FPGACenter stocks 928 Fairchild Semiconductor products with global sourcing capabilities, quality inspection, and competitive pricing. All Fairchild Semiconductor components sourced through FPGACenter are 100% original with full traceability documentation.

928
Total Parts
360
In Stock
33
Categories
360
Active
563
EOL/Obsolete

Key Product Lines

Linear Regulators (LDO)Gate DriversDC-DC Switching RegulatorsAC-DC Converters & Offline SwitchersPFC Controllers

✅ Why Source Fairchild Semiconductor from FPGACenter

FPGACenter carries 928 Fairchild Semiconductor part numbers. Submit an RFQ for volume pricing and lead time on any Fairchild Semiconductor component.

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Fairchild Semiconductor Product Categories

Linear Regulators (LDO) (204)Gate Drivers (130)DC-DC Switching Regulators (107)AC-DC Converters & Offline Switchers (78)PFC Controllers (63)EEPROM (58)Power Supply Controllers & Monitors (36)Specialized Power Management (26)LED Drivers (25)Battery Chargers (24)Op Amps & Instrumentation Amplifiers (24)Power Distribution Switches (20)Special Purpose ICs (18)Voltage References (16)Signal Switches, MUX & Decoders (16)DC-DC Switching Controllers (11)Analog Comparators (11)Supervisors & Reset ICs (9)Motor Drivers & Controllers (9)Programmable Timers & Oscillators (8)Gates & Inverters (6)Buffers, Drivers, Receivers & Transceivers (5)Lighting & Ballast Controllers (5)Audio Amplifiers (5)EPROM (4)Current Regulation & Management (2)V/F and F/V Converters (2)Battery Management ICs (1)Drivers, Receivers & Transceivers (1)Linear & Switching Controllers (1)Full & Half-Bridge Drivers (1)ROM & NVRAM (1)Audio Special Purpose ICs (1)

All Fairchild Semiconductor Products

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Part NumberCategoryDescriptionPackageStockPriceStatus
KA2903Analog ComparatorsThe KA2903 is an analog comparator manufactured by Fairchild Semiconductor. Design review should confirm ADC or DAC signal-chain requirements, channel count, resolution, supply voltage, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package and is rated for operation across -40°C ~ 85°C. Designed for instrumentation, medical devices, and audio systems applications, the KA2903 is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-DIP (0.300", 7.62mm)RFQ for sourcing$0.0090OBSOLETERFQ
KA2903DMTFAnalog ComparatorsThe KA2903DMTF is an analog comparator manufactured by Fairchild Semiconductor. Design review should confirm ADC or DAC signal-chain requirements, channel count, resolution, supply voltage, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Surface Mount component is supplied in a 8-SOIC (0.154", 3.90mm Width) package and is rated for operation across -40°C ~ 85°C. Designed for instrumentation, medical devices, and audio systems applications, the KA2903DMTF is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-SOIC (0.154", 3.90mm Width)RFQ for sourcing$0.4621OBSOLETERFQ
KA2903MAnalog ComparatorsThe KA2903M is an analog comparator manufactured by Fairchild Semiconductor. Design review should confirm ADC or DAC signal-chain requirements, channel count, resolution, supply voltage, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package and is rated for operation across -40°C ~ 85°C. Designed for instrumentation, medical devices, and audio systems applications, the KA2903M is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-DIP (0.300", 7.62mm)RFQ for sourcing$0.5139OBSOLETERFQ
KA2904DMTFOp Amps & Instrumentation AmplifiersThe KA2904DMTF is an instrumentation amplifier manufactured by Fairchild Semiconductor. Technical highlights include -40°C ~ 85°C operating temperature; design review should confirm amplifier gain, bandwidth, ADC or DAC signal-chain fit, supply voltage, and operating temperature limits. This Surface Mount component is supplied in a 8-SOIC (0.154", 3.90mm Width) package and is rated for operation across -40°C ~ 85°C. Designed for audio systems, instrumentation, and medical devices applications, the KA2904DMTF is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-SOIC (0.154", 3.90mm Width)RFQ for sourcingRFQOBSOLETERFQ
KA301AOp Amps & Instrumentation AmplifiersThe KA301A is an instrumentation amplifier manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm amplifier gain, bandwidth, ADC or DAC signal-chain fit, supply voltage, and operating temperature limits. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package and is rated for operation across 0°C ~ 70°C. Designed for audio systems, instrumentation, and medical devices applications, the KA301A is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-DIP (0.300", 7.62mm)RFQ for sourcing$0.6026OBSOLETERFQ
KA3082BMotor Drivers & ControllersThe KA3082B is a motor driver IC manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 75°C operating temperature; design review should confirm drive current, MOSFET or LED load compatibility, input voltage, package fit, and operating temperature limits. This Through Hole component is supplied in a 10-SIP package and is rated for operation across -25°C ~ 75°C. Designed for motor control, LED lighting, and display backlight applications, the KA3082B is currently in active production through Fairchild Semiconductor's standard distribution channels.10-SIP4.140 In Stock$0.3446ACTIVERFQ
KA311Analog ComparatorsThe KA311 is an analog comparator manufactured by Fairchild Semiconductor. Design review should confirm ADC or DAC signal-chain requirements, channel count, resolution, supply voltage, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package and is rated for operation across 0°C ~ 70°C. Designed for instrumentation, medical devices, and audio systems applications, the KA311 is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-DIP (0.300", 7.62mm)RFQ for sourcing$0.5537OBSOLETERFQ
KA311DTFAnalog ComparatorsThe KA311DTF is an analog comparator manufactured by Fairchild Semiconductor. Design review should confirm ADC or DAC signal-chain requirements, channel count, resolution, supply voltage, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Surface Mount component is supplied in a 8-SOIC (0.154", 3.90mm Width) package and is rated for operation across 0°C ~ 70°C. Designed for instrumentation, medical devices, and audio systems applications, the KA311DTF is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-SOIC (0.154", 3.90mm Width)RFQ for sourcing$0.5537OBSOLETERFQ
KA317Linear Regulators (LDO)The KA317 is an LDO voltage regulator manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 125°C operating temperature; design review should confirm input voltage, output voltage, voltage threshold, LDO or supervisor behavior when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-3 package and is rated for operation across 0°C ~ 125°C. Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA317 is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-3RFQ for sourcing$0.7614OBSOLETERFQ
KA317LZBULinear Regulators (LDO)The KA317LZBU is an LDO voltage regulator manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 125°C operating temperature; design review should confirm input voltage, output voltage, voltage threshold, LDO or supervisor behavior when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-226-3, TO-92-3 (TO-226AA) package and is rated for operation across 0°C ~ 125°C. Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA317LZBU is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-226-3, TO-92-3 (TO-226AA)RFQ for sourcingRFQOBSOLETERFQ
KA317LZTFLinear Regulators (LDO)The KA317LZTF is an LDO voltage regulator manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 125°C operating temperature; design review should confirm input voltage, output voltage, voltage threshold, LDO or supervisor behavior when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-226-3, TO-92-3 (TO-226AA) Formed Leads package and is rated for operation across 0°C ~ 125°C. Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA317LZTF is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-226-3, TO-92-3 (TO-226AA) Formed LeadsRFQ for sourcingRFQOBSOLETERFQ
KA317MRTFLinear Regulators (LDO)The KA317MRTF is an LDO voltage regulator manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 125°C operating temperature; design review should confirm input voltage, output voltage, voltage threshold, LDO or supervisor behavior when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-3 package and is rated for operation across 0°C ~ 125°C. Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA317MRTF is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-3RFQ for sourcing$0.5273OBSOLETERFQ
KA317MTULinear Regulators (LDO)The KA317MTU is an LDO voltage regulator manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 125°C operating temperature; design review should confirm input voltage, output voltage, voltage threshold, LDO or supervisor behavior when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-3 package and is rated for operation across 0°C ~ 125°C. Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA317MTU is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-3RFQ for sourcingRFQOBSOLETERFQ
KA324ADOp Amps & Instrumentation AmplifiersThe KA324AD is an instrumentation amplifier manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm amplifier gain, bandwidth, ADC or DAC signal-chain fit, supply voltage, and operating temperature limits. This Surface Mount component is supplied in a 14-SOIC (0.154", 3.90mm Width) package and is rated for operation across 0°C ~ 70°C. Designed for audio systems, instrumentation, and medical devices applications, the KA324AD is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.14-SOIC (0.154", 3.90mm Width)RFQ for sourcingRFQOBSOLETERFQ
KA324DOp Amps & Instrumentation AmplifiersThe KA324D is an instrumentation amplifier manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm amplifier gain, bandwidth, ADC or DAC signal-chain fit, supply voltage, and operating temperature limits. This Surface Mount component is supplied in a 14-SOIC (0.154", 3.90mm Width) package and is rated for operation across 0°C ~ 70°C. Designed for audio systems, instrumentation, and medical devices applications, the KA324D is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.14-SOIC (0.154", 3.90mm Width)RFQ for sourcing$0.0648OBSOLETERFQ
KA331V/F and F/V ConvertersThe KA331 is a switching converter manufactured by Fairchild Semiconductor. Design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package suitable for both prototyping and production builds. Designed for instrumentation, medical devices, and audio systems applications, the KA331 is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-DIP (0.300", 7.62mm)RFQ for sourcingRFQOBSOLETERFQ
KA331PWDV/F and F/V ConvertersThe KA331PWD is a switching converter manufactured by Fairchild Semiconductor. Design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package suitable for both prototyping and production builds. Designed for instrumentation, medical devices, and audio systems applications, the KA331PWD is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-DIP (0.300", 7.62mm)RFQ for sourcingRFQOBSOLETERFQ
KA334Op Amps & Instrumentation AmplifiersThe KA334 is an instrumentation amplifier manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°C operating temperature; design review should confirm amplifier gain, bandwidth, ADC or DAC signal-chain fit, supply voltage, and operating temperature limits. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package and is rated for operation across -25°C ~ 85°C. Designed for audio systems, instrumentation, and medical devices applications, the KA334 is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.8-DIP (0.300", 7.62mm)RFQ for sourcingRFQOBSOLETERFQ
KA336Z25BUVoltage ReferencesThe KA336Z25BU is a voltage reference manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 70°C (TA) operating temperature; design review should confirm input voltage, output voltage, voltage threshold, LDO or supervisor behavior when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-226-3, TO-92-3 (TO-226AA) Formed Leads package and is rated for operation across 0°C ~ 70°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA336Z25BU is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-226-3, TO-92-3 (TO-226AA) Formed LeadsRFQ for sourcingRFQOBSOLETERFQ
KA337Linear Regulators (LDO)The KA337 is an LDO voltage regulator manufactured by Fairchild Semiconductor. Technical highlights include 0°C ~ 125°C operating temperature; design review should confirm input voltage, output voltage, voltage threshold, LDO or supervisor behavior when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-3 package and is rated for operation across 0°C ~ 125°C. Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA337 is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-3RFQ for sourcing$0.7922OBSOLETERFQ

Frequently Asked Questions

Where can I buy Fairchild Semiconductor electronic components?

FPGACenter stocks 928 Fairchild Semiconductor part numbers with 360 currently in stock. All parts are 100% original with full traceability. No minimum order quantity required. Submit an RFQ for competitive pricing.

Can I still get obsolete Fairchild Semiconductor parts?

Yes. FPGACenter specializes in sourcing hard-to-find and obsolete components. We have 563 end-of-life/obsolete Fairchild Semiconductor part numbers in our database, many available from verified stock or through our global sourcing network.

What types of Fairchild Semiconductor products does FPGACenter carry?

We stock Fairchild Semiconductor products across 33 categories including Linear Regulators (LDO), Gate Drivers, DC-DC Switching Regulators, AC-DC Converters & Offline Switchers. Browse our full catalog or contact our sourcing team for any specific Fairchild Semiconductor part number.

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