{"title":"Fairchild","description":"\u003cp\u003eFairchild Semiconductor vintage power transistors, including the 2N4398 PNP TO-3 power transistor. New old stock and surplus inventory for power electronics and legacy equipment repair. Fast shipping from American Industrial Parts Group.\u003c\/p\u003e","products":[{"product_id":"fairchild-2n4398-pnp-40v-30a-power-transistor-to-3-nos-vintage-semiconductor","title":"Fairchild 2N4398 PNP 40V 30A Power Transistor TO-3 NOS Vintage Semiconductor","description":"ITEM SPECIFICS\u003cbr\u003eBrand: Fairchild Semiconductor\u003cbr\u003eModel: 2N4398\u003cbr\u003eMPN: 2N4398\u003cbr\u003eType: Bipolar Junction Transistor (BJT)\u003cbr\u003eTransistor Type: PNP\u003cbr\u003eApplication: Power\u003cbr\u003eCollector-Emitter Voltage: 40 V\u003cbr\u003eMaximum Collector Current: 30 A\u003cbr\u003ePower Dissipation: 200 W at TC = 25°C\u003cbr\u003eTransition Frequency: 4 MHz Minimum\u003cbr\u003ePackage \/ Case: TO-3\u003cbr\u003eMounting Style: Through-Hole \/ Chassis Mount\u003cbr\u003eNumber of Terminals: 2 Leads plus Case\u003cbr\u003eComplementary NPN: 2N5301\u003cbr\u003eCountry\/Region of Manufacture: Hong Kong\u003cbr\u003eComponent Marking: F 927 \/ 2N4398 \/ HONGKONG\u003cbr\u003eCondition: New Old Stock\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eFairchild Semiconductor 2N4398 PNP silicon power transistor in the classic metal TO-3 power package.\u003cbr\u003e\u003cbr\u003eThe 2N4398 was designed for high-current power applications and is documented in Fairchild's original semiconductor catalogs as a 40-volt, 30-amp PNP power transistor.\u003cbr\u003e\u003cbr\u003e• Genuine vintage Fairchild Semiconductor component\u003cbr\u003e• Part number 2N4398\u003cbr\u003e• PNP silicon bipolar power transistor\u003cbr\u003e• 40 V collector-emitter voltage rating\u003cbr\u003e• 30 A maximum collector current\u003cbr\u003e• 200 W power dissipation at TC = 25°C\u003cbr\u003e• 4 MHz minimum transition frequency\u003cbr\u003e• TO-3 metal power package\u003cbr\u003e• Complementary NPN device: 2N5301\u003cbr\u003e• Marked HONGKONG\u003cbr\u003e• Vintage \/ obsolete semiconductor\u003cbr\u003e• New Old Stock\u003cbr\u003e\u003cbr\u003eThe additional marking “F 927” is reproduced exactly as shown on the component and is not being represented as a verified manufacturing date code.\u003cbr\u003eThis vintage device is suitable for repair, restoration, replacement, industrial electronics, power-control equipment, legacy equipment, laboratory use, and vintage electronics applications where the original 2N4398 specification is required.\u003cbr\u003e\u003cbr\u003eCOMPATIBILITY \u0026amp; CROSS-REFERENCE\u003cbr\u003eThe complementary NPN device for the Fairchild 2N4398 is the 2N5301. Verify polarity, pinout, and suitability for your circuit before installation.\u003cbr\u003e\u003cbr\u003eQ: What are the 2N4398 ratings?\u003cbr\u003eA: 40 V collector-emitter, 30 A collector current, and 200 W at TC = 25°C.\u003cbr\u003e\u003cbr\u003eQ: What is its complementary NPN device?\u003cbr\u003eA: The 2N5301.\u003cbr\u003e\u003cbr\u003eQ: What package is it?\u003cbr\u003eA: TO-3 metal case.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eNew old stock component. Item may show normal cosmetic evidence of long-term storage and handling consistent with its age. No testing has been performed unless specifically stated. Please review the photographs carefully for the exact physical condition and markings of the item being offered. Buyer is responsible for verifying specifications, suitability, circuit requirements, and compatibility before installation.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eFairchild Semiconductor is a trademark or trade name of its respective owner. American Industrial Parts Group is not an authorized distributor, dealer, or representative of Fairchild Semiconductor or its successor companies. All trademarks, manufacturer names, product names, and part numbers are used solely for identification and reference purposes. No affiliation with or endorsement by the manufacturer is implied.\u003cbr\u003e\u003cbr\u003eFairchild 2N4398 Fairchild Semiconductor 2N4398 2N 4398 PNP transistor PNP power transistor silicon power transistor 40V transistor 30A transistor TO-3 transistor TO3 power transistor bipolar transistor BJT transistor vintage transistor vintage semiconductor obsolete transistor legacy semiconductor NOS transistor new old stock transistor Fairchild power transistor 2N5301 complementary transistor high current transistor power electronics transistor industrial electronics component vintage electronics repair component replacement transistor legacy equipment semiconductor TO-3 metal can power device 2N4398 replacement 2N4398 PNP power transistor failed replacement high current PNP transistor replacement\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"Fairchild","offers":[{"title":"Default Title","offer_id":49712615260315,"sku":"FAI-2N4398-N","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/fairchild-2n4398-pnp-power-transistor-to-3-1-american-industrial-parts-group.png?v=1791042329"},{"product_id":"lot-of-3-fairchild-74ls74a-pc-dual-d-type-flip-flop-14-pin-dip-nos","title":"Lot of 3 Fairchild 74LS74A PC Dual D-Type Flip-Flop 14-Pin DIP NOS","description":"ITEM SPECIFICS\u003cbr\u003eBrand: Fairchild Semiconductor\u003cbr\u003eModel: 74LS74A PC\u003cbr\u003eMPN: 74LS74A PC\u003cbr\u003eSeries: 74LS\u003cbr\u003eType: Dual D-Type Positive-Edge-Triggered Flip-Flop\u003cbr\u003eFunction: Dual D-Type Flip-Flop with Preset and Clear\u003cbr\u003ePackage: 14-Pin Plastic DIP\u003cbr\u003eMarking: 8438A\u003cbr\u003eCountry\/Region of Manufacture: West Germany\u003cbr\u003eQuantity: 3\u003cbr\u003eCondition: New old stock\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eLot of three Fairchild Semiconductor 74LS74A PC integrated circuits.\u003cbr\u003eThese are dual positive-edge-triggered D-type flip-flops with preset and clear functions in 14-pin plastic DIP packages. The devices are marked with the Fairchild logo, 74LS74A PC, 8438A, and W. Germany.\u003cbr\u003e\u003cbr\u003eThe chips are new old stock and show original vintage Fairchild markings. They are suitable for vintage electronics restoration, TTL logic repairs, digital logic projects, computer hardware repair, test equipment, and replacement applications requiring the 74LS74A part number.\u003cbr\u003e\u003cbr\u003eNo electrical testing has been performed. Please review all photos for exact markings, pin condition, and cosmetic condition. The lot includes the three integrated circuits shown.\u003cbr\u003e\u003cbr\u003eCOMPATIBILITY \u0026amp; CROSS-REFERENCE\u003cbr\u003eThe Fairchild 74LS74A PC is a 74LS74A-family dual D-type flip-flop with preset and clear in a 14-pin DIP for 5V TTL logic. Other 74LS74A and 74LS74AN devices share the same function and package, so they can serve as cross-references in 74LS74 sockets. It is not a drop-in for 74HC74 or 74S74 devices, which have different electrical characteristics. Use it to replace a failed 74LS74 in vintage computers, arcade boards, and TTL logic repair, and confirm the pinout against your board before installing.\u003cbr\u003e\u003cbr\u003eQ: What does the Fairchild 74LS74A PC replace?\u003cbr\u003eA: Other 74LS74A dual D flip-flops in 14-pin DIP sockets, including SN74LS74AN devices.\u003cbr\u003e\u003cbr\u003eQ: How many flip-flops are in each chip?\u003cbr\u003eA: Two independent D-type positive-edge-triggered flip-flops, each with preset and clear.\u003cbr\u003e\u003cbr\u003eQ: Is it tested?\u003cbr\u003eA: No. It is new old stock, untested and sold as shown.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eThese items are new old stock. They may show minor cosmetic marks, oxidation, storage wear, or age-related appearance from long-term storage. Electrical performance has not been tested.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eAmerican Industrial Parts Group is not an authorized distributor, reseller, or representative of Fairchild Semiconductor. Fairchild Semiconductor and all related trademarks are the property of their respective owners. These items are sold as new old stock and are not covered by any manufacturer warranty.\u003cbr\u003e\u003cbr\u003eFairchild 74LS74A PC 74LS74A 7474 dual D-type flip-flop positive edge triggered flip-flop preset clear TTL logic IC integrated circuit 14-pin DIP PDIP 74LS series vintage electronics NOS West Germany 8438A digital logic replacement semiconductor computer repair test equipment restoration 74LS74 not working arcade board logic chip failed flip-flop replacement TTL logic IC replacement\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"Fairchild","offers":[{"title":"Default Title","offer_id":49751721672859,"sku":"FAI-74LS74A-PC-N","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/fairchild-74ls74a-pc-dual-d-flip-flop-dip-14-lot-of-3-1-american-industrial-parts-group.png?v=1791488069"},{"product_id":"lot-of-10-fairchild-ua711hc-711hc-ecg-911-dual-differential-comparators-nos","title":"Lot of 10 Fairchild UA711HC 711HC ECG-911 Dual Differential Comparators NOS","description":"ITEM SPECIFICS\u003cbr\u003eBrand: Fairchild\u003cbr\u003eModel: UA711HC \/ 711HC\u003cbr\u003eMPN: 711HC\u003cbr\u003eType: Dual high-speed differential comparator\u003cbr\u003ePackage: Hermetic metal can\u003cbr\u003eCross-Reference: ECG-911\u003cbr\u003eQuantity: 10\u003cbr\u003eCondition: New Old Stock\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eLot of 10 New Old Stock Fairchild UA711HC \/ 711HC dual high-speed differential comparators.\u003cbr\u003eMarked FUA 711HC\u003cbr\u003eECG-911 cross-reference\u003cbr\u003eDual comparator design\u003cbr\u003eHigh-speed differential comparator\u003cbr\u003eHermetic metal-can package\u003cbr\u003eGold-plated leads\u003cbr\u003eVintage electronic components\u003cbr\u003eLoose components; no original retail packaging included\u003cbr\u003eNot electrically tested\u003cbr\u003ePlease review all photographs carefully for markings and physical condition.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eThese are vintage New Old Stock electronic components. They have not been electrically tested and are sold for replacement, repair, restoration, experimental, or parts use. Buyer is responsible for confirming electrical compatibility before installation.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eAmerican Industrial Parts Group is not an authorized distributor or representative of Fairchild Semiconductor, ECG, or any referenced manufacturer. Brand names and cross-reference numbers are used for identification purposes only.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCOMPATIBILITY \u0026amp; CROSS-REFERENCE\u003c\/strong\u003e\u003cbr\u003eMarked UA711HC \/ 711HC, these are dual high-speed differential comparators in a hermetic metal can, with an ECG-911 cross-reference per the label. NTE describes its NTE911 as a dual differential comparator in a 10-lead metal can with 40ns typical response, 5mV maximum offset voltage, and absolute maximum supplies of +14V and -7V. No Fairchild datasheet for this exact device was located, so verify pinout and ratings against the original equipment's documentation before substituting.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eQ\u0026amp;A\u003c\/strong\u003e\u003cbr\u003eQ: What is the UA711HC? A: A dual high-speed differential comparator in a hermetic metal-can package.\u003cbr\u003eQ: What is the ECG cross-reference? A: ECG-911, per the label on these parts.\u003cbr\u003eQ: How many are included? A: Ten.\u003cbr\u003e\u003cbr\u003eFairchild UA711HC 711HC ECG-911 ECG911 dual high-speed differential comparator voltage comparator analog comparator hermetic metal can comparator IC vintage semiconductor integrated circuit replacement parts legacy electronics test equipment industrial control NOS New Old Stock lot of 10 comparator IC failed replacement\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"Fairchild","offers":[{"title":"Default Title","offer_id":49772318294171,"sku":"FCH-UA711HC-N-2","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/fairchild-ua711hc-ecg-911-dual-differential-comparator-lot-of-10-1-american-industrial-parts-group.png?v=1791664095"},{"product_id":"fairchild-ua711hc-711hc-ecg-911-dual-high-speed-differential-comparator-nos","title":"Fairchild UA711HC 711HC ECG-911 Dual High-Speed Differential Comparator NOS","description":"ITEM SPECIFICS\u003cbr\u003eBrand: Fairchild\u003cbr\u003eModel: UA711HC \/ 711HC\u003cbr\u003eMPN: 711HC\u003cbr\u003eType: Dual high-speed differential comparator\u003cbr\u003ePackage: Hermetic metal can\u003cbr\u003eCross-Reference: ECG-911\u003cbr\u003eCondition: New Old Stock\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eNew Old Stock Fairchild UA711HC \/ 711HC dual high-speed differential comparator in a hermetic metal-can package.\u003cbr\u003eMarked FUA 711HC\u003cbr\u003eECG-911 cross-reference label\u003cbr\u003eDual comparator design\u003cbr\u003eHigh-speed differential comparator\u003cbr\u003eGold-plated leads\u003cbr\u003eVintage electronic component\u003cbr\u003eLoose component; no original retail packaging included\u003cbr\u003eNot electrically tested\u003cbr\u003ePlease review all photographs carefully for markings and physical condition.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eThis is a vintage New Old Stock electronic component. It has not been electrically tested and is sold for replacement, repair, restoration, experimental, or parts use. Buyer is responsible for confirming electrical compatibility before installation.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eAmerican Industrial Parts Group is not an authorized distributor or representative of Fairchild Semiconductor, ECG, or any referenced manufacturer. Brand names and cross-reference numbers are used for identification purposes only.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCOMPATIBILITY \u0026amp; CROSS-REFERENCE\u003c\/strong\u003e\u003cbr\u003eMarked UA711HC \/ 711HC, this is a dual high-speed differential comparator in a hermetic metal can, with an ECG-911 cross-reference per the label. NTE describes its NTE911 as a dual differential comparator in a 10-lead metal can with 40ns typical response, 5mV maximum offset voltage, and absolute maximum supplies of +14V and -7V. No Fairchild datasheet for this exact device was located, so verify pinout and ratings against the original equipment's documentation before substituting.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eQ\u0026amp;A\u003c\/strong\u003e\u003cbr\u003eQ: What is the UA711HC? A: A dual high-speed differential comparator in a hermetic metal-can package.\u003cbr\u003eQ: What is the ECG cross-reference? A: ECG-911, per the label on this part.\u003cbr\u003eQ: How many are included? A: One.\u003cbr\u003e\u003cbr\u003eFairchild UA711HC 711HC ECG-911 ECG911 dual high-speed differential comparator voltage comparator analog comparator hermetic metal can comparator IC vintage semiconductor integrated circuit replacement part legacy electronics test equipment industrial control NOS New Old Stock comparator IC failed replacement\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"Fairchild","offers":[{"title":"Default Title","offer_id":49772318556315,"sku":"FCH-UA711HC-N","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/fairchild-ua711hc-ecg-911-dual-differential-comparator-1-american-industrial-parts-group.png?v=1791664094"},{"product_id":"fairchild-9n23-7423-dual-4-input-nor-gate-strobe-ttl-ic-16-dip-vintage-1973-nos","title":"Fairchild 9N23\/7423 Dual 4-Input NOR Gate Strobe TTL IC 16-DIP Vintage 1973 NOS","description":"ITEM SPECIFICS\u003cbr\u003eBrand: Fairchild Semiconductor\u003cbr\u003eModel: 9N23\/7423\u003cbr\u003eMPN: 9N23\/7423\u003cbr\u003eType: Dual 4-Input Positive-NOR Gate with Strobe\u003cbr\u003eLogic Family: Standard TTL (7400 series)\u003cbr\u003eNumber of Gates: 2\u003cbr\u003eInputs per Gate: 4\u003cbr\u003ePackage: 16-Pin Plastic DIP\u003cbr\u003eMounting: Through-Hole\u003cbr\u003eSupply Voltage: 5V nominal\u003cbr\u003eOperating Temperature: 0°C to 70°C\u003cbr\u003eDate Code: 7304\u003cbr\u003eCondition: New\u003cbr\u003eQuantity: 1\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eNew old stock Fairchild Semiconductor 9N23\/7423 dual 4-input positive-NOR gate with strobe in a 16-pin plastic DIP. Marked \"9N23\/7423\" and \"PC F 7304.\" Date code 7304 places manufacture in 1973. Never installed. Leads show light storage discoloration, as pictured.\u003cbr\u003e\u003cbr\u003eFairchild sold its 7400-series equivalents under its own 9N numbering, so this part carries both the Fairchild 9N23 number and the industry-standard 7423 number.\u003cbr\u003e\u003cbr\u003eFeatures:\u003cbr\u003eTwo 4-input NOR gates, each with a strobe input\u003cbr\u003eStandard 7400-series TTL, 5V logic\u003cbr\u003e16-pin plastic DIP, through-hole\u003cbr\u003eOriginal Fairchild manufacture, 1973 date code\u003cbr\u003eCommercial temperature range, 0°C to 70°C\u003cbr\u003eCompatibility: Direct replacement for 7423, SN7423, and Fairchild 9N23 in 16-pin DIP sockets. The 7425 performs the same dual 4-input NOR-with-strobe function but is a 14-pin part, so it is not a drop-in substitute.\u003cbr\u003e\u003cbr\u003eQ\u0026amp;A\u003cbr\u003eQ: What is the 9N23\/7423?\u003cbr\u003eA: A Fairchild dual 4-input NOR gate with strobe, in standard TTL, packaged in a 16-pin plastic DIP.\u003cbr\u003eQ: What replaces a 7423?\u003cbr\u003eA: This part is a direct replacement for 7423, SN7423, and Fairchild 9N23.\u003cbr\u003eQ: Is the 7423 the same as the 7425?\u003cbr\u003eA: Same logic function, different package. The 7423 is 16-pin; the 7425 is 14-pin. They are not pin-compatible.\u003cbr\u003eQ: How old is this part?\u003cbr\u003eA: The date code is 7304, which places manufacture in 1973.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eItem is new old stock, sold as pictured. Ships fast with tracking. 30-day returns accepted; buyer pays return shipping.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eWe are not an authorized distributor, reseller, or representative of Fairchild Semiconductor. All product names, trademarks, brands, and logos are the property of their respective owners. Products are sourced from surplus inventory and are not covered by manufacturer warranties.\u003cbr\u003e\u003cbr\u003e9N23, 9N23\/7423, 7423, SN7423, SN7423N, 7423PC, Fairchild 9N23, Fairchild 7423, dual 4-input NOR gate with strobe, 4-input NOR gate IC, NOR gate strobe DIP-16, TTL logic IC, 7400 series TTL, vintage Fairchild IC, 1973 vintage IC, NOS Fairchild TTL, obsolete TTL replacement, vintage computer repair IC, minicomputer repair TTL, test equipment repair logic IC, arcade board repair TTL, circuit board not working logic gate replacement\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"Fairchild","offers":[{"title":"Default Title","offer_id":49804628164763,"sku":"FSC-9N23\/7423-N","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/fairchild-9n23-7423-dual-nor-gate-dip-16-1-american-industrial-parts-group.jpg?v=1791933997"},{"product_id":"lot-of-10-fairchild-9n23-7423-dual-4-input-nor-gate-strobe-ttl-16-dip-1973-nos","title":"Lot of 10 Fairchild 9N23\/7423 Dual 4-Input NOR Gate Strobe TTL 16-DIP 1973 NOS","description":"ITEM SPECIFICS\u003cbr\u003eBrand: Fairchild Semiconductor\u003cbr\u003eModel: 9N23\/7423\u003cbr\u003eMPN: 9N23\/7423\u003cbr\u003eType: Dual 4-Input Positive-NOR Gate with Strobe\u003cbr\u003eLogic Family: Standard TTL (7400 series)\u003cbr\u003eNumber of Gates: 2\u003cbr\u003eInputs per Gate: 4\u003cbr\u003ePackage: 16-Pin Plastic DIP\u003cbr\u003eMounting: Through-Hole\u003cbr\u003eSupply Voltage: 5V nominal\u003cbr\u003eOperating Temperature: 0°C to 70°C\u003cbr\u003eCondition: New\u003cbr\u003eQuantity: 10\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eLot of 10 new old stock Fairchild Semiconductor 9N23\/7423 dual 4-input positive-NOR gates with strobe in 16-pin plastic DIP. Each is marked \"9N23\/7423\" with Fairchild's \"PC F\" marking. Photos show a representative unit with date code 7304, which places manufacture in 1973; date codes may vary within the lot. Never installed. Leads show light storage discoloration, as pictured.\u003cbr\u003e\u003cbr\u003eFairchild sold its 7400-series equivalents under its own 9N numbering, so these parts carry both the Fairchild 9N23 number and the industry-standard 7423 number.\u003cbr\u003e\u003cbr\u003eFeatures:\u003cbr\u003eTwo 4-input NOR gates, each with a strobe input\u003cbr\u003eStandard 7400-series TTL, 5V logic\u003cbr\u003e16-pin plastic DIP, through-hole\u003cbr\u003eOriginal Fairchild manufacture, 1970s vintage\u003cbr\u003eCommercial temperature range, 0°C to 70°C\u003cbr\u003e10 pieces\u003cbr\u003e\u003cbr\u003eCompatibility:\u003cbr\u003eDirect replacement for 7423, SN7423, and Fairchild 9N23 in 16-pin DIP sockets. The 7425 performs the same dual 4-input NOR-with-strobe function but is a 14-pin part, so it is not a drop-in substitute.\u003cbr\u003e\u003cbr\u003eQ\u0026amp;A\u003cbr\u003eQ: What is the 9N23\/7423?\u003cbr\u003eA: A Fairchild dual 4-input NOR gate with strobe, in standard TTL, packaged in a 16-pin plastic DIP.\u003cbr\u003eQ: What replaces a 7423?\u003cbr\u003eA: These parts are a direct replacement for 7423, SN7423, and Fairchild 9N23.\u003cbr\u003eQ: Is the 7423 the same as the 7425?\u003cbr\u003eA: Same logic function, different package. The 7423 is 16-pin; the 7425 is 14-pin. They are not pin-compatible.\u003cbr\u003eQ: How old are these parts?\u003cbr\u003eA: The pictured unit is date coded 7304, which places manufacture in 1973. Date codes may vary within the lot.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eItems are new old stock, sold as pictured. Ships fast with tracking. 30-day returns accepted; buyer pays return shipping.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eWe are not an authorized distributor, reseller, or representative of Fairchild Semiconductor. All product names, trademarks, brands, and logos are the property of their respective owners. Products are sourced from surplus inventory and are not covered by manufacturer warranties.\u003cbr\u003e\u003cbr\u003e9N23 lot, 9N23\/7423 10 pack, 7423 IC lot, SN7423, SN7423N, 7423PC, Fairchild 9N23, Fairchild 7423, dual 4-input NOR gate with strobe, 4-input NOR gate IC, NOR gate strobe DIP-16, TTL logic IC lot, 7400 series TTL, vintage Fairchild IC, 1973 vintage IC, NOS Fairchild TTL, obsolete TTL replacement, vintage computer repair IC, minicomputer repair TTL, test equipment repair logic IC, arcade board repair TTL, circuit board not working logic gate replacement\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"Fairchild","offers":[{"title":"Default Title","offer_id":49804633243803,"sku":"FSC-9N23\/7423-N-2","price":48.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/fairchild-9n23-7423-dual-nor-gate-dip-16-lot-of-10-1-american-industrial-parts-group.png?v=1791933997"},{"product_id":"lot-of-4-fairchild-ua7812uc-12v-1a-positive-voltage-regulator-to-220-1982-nos","title":"Lot of 4 Fairchild UA7812UC 12V 1A Positive Voltage Regulator TO-220 1982 NOS","description":"ITEM SPECIFICS\u003cbr\u003eBrand: Fairchild Semiconductor\u003cbr\u003eModel: UA7812UC\u003cbr\u003eMPN: UA7812UC\u003cbr\u003eType: 3-Terminal Fixed Positive Linear Voltage Regulator\u003cbr\u003eOutput Voltage: 12V\u003cbr\u003eOutput Current: 1A\u003cbr\u003eInput Voltage: 35V maximum\u003cbr\u003ePackage: TO-220\u003cbr\u003eMounting: Through-Hole\u003cbr\u003eDate Code: 8235\u003cbr\u003eCountry of Origin: Korea\u003cbr\u003eCondition: New\u003cbr\u003eQuantity: 4\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eLot of 4 new old stock Fairchild Semiconductor µA7812UC 3-terminal positive 12V voltage regulators in TO-220 packages. Each is marked \"UA7812UC,\" \"F 8235,\" and \"KOREA.\" Date code 8235 places manufacture in 1982. Never installed. Leads show light storage discoloration, as pictured.\u003cbr\u003eThe µA7812 is Fairchild's original part number in the industry-standard 7812 12V regulator family.\u003cbr\u003e\u003cbr\u003eFeatures:\u003cbr\u003eFixed 12V positive output\u003cbr\u003e1A output current with adequate heatsinking\u003cbr\u003e35V maximum input voltage\u003cbr\u003eTypical 2V dropout at 1A\u003cbr\u003eInternal thermal shutdown and short-circuit current limiting\u003cbr\u003e\u003cbr\u003eOutput transistor safe-area protection\u003cbr\u003eTO-220 package with metal mounting tab\u003cbr\u003eOriginal Fairchild manufacture, 1982 date code\u003cbr\u003e4 pieces\u003cbr\u003e\u003cbr\u003eCompatibility:\u003cbr\u003eDirect replacement for µA7812, UA7812UC, LM7812, MC7812, and L7812 12V TO-220 positive regulators. Standard 78xx TO-220 pinout: Input, Common, Output, with the tab connected to Common.\u003cbr\u003e\u003cbr\u003eQ\u0026amp;A\u003cbr\u003eQ: What is the UA7812UC?\u003cbr\u003eA: A Fairchild 12V, 1A three-terminal positive voltage regulator in a TO-220 package.\u003cbr\u003eQ: What replaces a UA7812UC?\u003cbr\u003eA: These are direct replacements. Any 7812-type 12V TO-220 positive regulator (LM7812, MC7812, L7812) fits the same position.\u003cbr\u003eQ: What input voltage does it need?\u003cbr\u003eA: About 2V above the 12V output at 1A, up to a 35V maximum.\u003cbr\u003eQ: How old are these parts?\u003cbr\u003eA: Date code 8235, which places manufacture in 1982.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eItems are new old stock, sold as pictured. Ships fast with tracking. 30-day returns accepted; buyer pays return shipping.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eWe are not an authorized distributor, reseller, or representative of Fairchild Semiconductor. All product names, trademarks, brands, and logos are the property of their respective owners. Products are sourced from surplus inventory and are not covered by manufacturer warranties.\u003cbr\u003e\u003cbr\u003eUA7812UC, UA7812, uA7812, Fairchild UA7812UC, Fairchild 7812, 7812 voltage regulator, LM7812 replacement, MC7812 replacement, L7812 replacement, 12V voltage regulator, 12V 1A regulator, positive voltage regulator TO-220, 3 terminal regulator 12V, vintage Fairchild regulator, 1982 Fairchild IC, NOS voltage regulator lot, power supply regulator replacement, 12V rail not working, power supply no 12V output, voltage regulator failed replacement, circuit board not powering up regulator\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"Fairchild","offers":[{"title":"Default Title","offer_id":49807156412571,"sku":"FSC-UA7812UC-N","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/fairchild-ua7812uc-12v-1a-voltage-regulator-to-220-lot-of-4-1-american-industrial-parts-group.png?v=1791931690"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/collections\/Industrial-Automation-MRO-Products-American-Industrial-Parts-Group_70ca046e-2344-4d23-8ac3-d052ffb2fc43.png?v=1791043364","url":"https:\/\/americanindustrialpartsgroup.com\/collections\/fairchild.oembed","provider":"American Industrial Parts Group","version":"1.0","type":"link"}