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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

Page 39 of 47
Part NumberCategoryDescriptionPackageStockPriceStatus
KA431SLMF2TFVoltage ReferencesThe KA431SLMF2TF is a voltage reference manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°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 Surface Mount component is supplied in an SOT-23-3 Flat Leads package and is rated for operation across -25°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA431SLMF2TF is currently in active production through Fairchild Semiconductor's standard distribution channels.SOT-23-3 Flat Leads35.968 In Stock$0.1414ACTIVERFQ
KA431SLMFTFVoltage ReferencesThe KA431SLMFTF is a voltage reference manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°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 Surface Mount component is supplied in an SOT-23-3 Flat Leads package and is rated for operation across -25°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA431SLMFTF is currently in active production through Fairchild Semiconductor's standard distribution channels.SOT-23-3 Flat Leads16.238 In Stock$0.0967ACTIVERFQ
KA431SMFTFVoltage ReferencesThe KA431SMFTF is a voltage reference manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°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 Surface Mount component is supplied in an SOT-23-3 Flat Leads package and is rated for operation across -25°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA431SMFTF is currently in active production through Fairchild Semiconductor's standard distribution channels.SOT-23-3 Flat Leads23.028 In Stock$0.0867ACTIVERFQ
KA431ZTFVoltage ReferencesThe KA431ZTF is a voltage reference manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°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 -25°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA431ZTF 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 sourcing$0.1697OBSOLETERFQ
KA4558Op Amps & Instrumentation AmplifiersThe KA4558 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 KA4558 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$0.1658OBSOLETERFQ
KA4558IOp Amps & Instrumentation AmplifiersThe KA4558I 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 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 audio systems, instrumentation, and medical devices applications, the KA4558I 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
KA5532Op Amps & Instrumentation AmplifiersThe KA5532 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 KA5532 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$1.58OBSOLETERFQ
KA555Programmable Timers & OscillatorsThe KA555 is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, 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 industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA555 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$0.5038OBSOLETERFQ
KA555DProgrammable Timers & OscillatorsThe KA555D is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, 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 0°C ~ 70°C. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA555D 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$0.0713OBSOLETERFQ
KA555DTFProgrammable Timers & OscillatorsThe KA555DTF is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, 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 0°C ~ 70°C. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA555DTF 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$0.5038OBSOLETERFQ
KA555IProgrammable Timers & OscillatorsThe KA555I is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, 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 -40°C ~ 85°C. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA555I 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
KA555IDProgrammable Timers & OscillatorsThe KA555ID is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, 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 industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA555ID 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$0.1546OBSOLETERFQ
KA556Programmable Timers & OscillatorsThe KA556 is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, and operating temperature limits. This Through Hole component is supplied in a 14-DIP (0.300", 7.62mm) package and is rated for operation across 0°C ~ 70°C. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA556 is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.14-DIP (0.300", 7.62mm)RFQ for sourcing$14.28OBSOLETERFQ
KA556DTFProgrammable Timers & OscillatorsThe KA556DTF is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, 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 industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA556DTF 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$1.24OBSOLETERFQ
KA556IProgrammable Timers & OscillatorsThe KA556I is a clock/timing IC manufactured by Fairchild Semiconductor. Technical highlights include 4.5V ~ 16V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm clock frequency, PLL configuration, jitter budget, output type, and operating temperature limits. This Through Hole component is supplied in a 14-DIP (0.300", 7.62mm) package and is rated for operation across -40°C ~ 85°C. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the KA556I is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.14-DIP (0.300", 7.62mm)RFQ for sourcing$0.9284OBSOLETERFQ
KA5H0165RNAC-DC Converters & Offline SwitchersThe KA5H0165RN is an AC-DC converter manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal 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 (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA5H0165RN 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$0.2709OBSOLETERFQ
KA5H0165RTUAC-DC Converters & Offline SwitchersThe KA5H0165RTU is an AC-DC converter manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-4 Full Pack package and is rated for operation across -25°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA5H0165RTU is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-4 Full PackRFQ for sourcing$3.34OBSOLETERFQ
KA5H0280RTUAC-DC Converters & Offline SwitchersThe KA5H0280RTU is an AC-DC converter manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-4 Full Pack package and is rated for operation across -25°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA5H0280RTU is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-4 Full PackRFQ for sourcingRFQOBSOLETERFQ
KA5H0280RYDTUAC-DC Converters & Offline SwitchersThe KA5H0280RYDTU is an AC-DC converter manufactured by Fairchild Semiconductor. Technical highlights include -25°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-4 Full Pack, Formed Leads package and is rated for operation across -25°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA5H0280RYDTU is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-4 Full Pack, Formed LeadsRFQ for sourcingRFQOBSOLETERFQ
KA5H0365RTUAC-DC Converters & Offline SwitchersThe KA5H0365RTU is an AC-DC converter manufactured by Fairchild Semiconductor. Technical highlights include -40°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits. This Through Hole component is supplied in a TO-220-4 Full Pack package and is rated for operation across -40°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the KA5H0365RTU is no longer produced by Fairchild Semiconductor; FPGACenter maintains verified stock sourced through certified supply chain partners.TO-220-4 Full PackRFQ for sourcing$1.30OBSOLETERFQ

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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