{"product_id":"national-semiconductor-lm338k-steel-5a-adjustable-voltage-regulator-to-3-nos","title":"National Semiconductor LM338K STEEL 5A Adjustable Voltage Regulator TO-3 NOS","description":"ITEM SPECIFICS\u003cbr\u003eBrand: National Semiconductor\u003cbr\u003eMPN: LM338K STEEL\u003cbr\u003eModel: LM338K\u003cbr\u003eType: 3-Terminal Adjustable Positive Linear Voltage Regulator\u003cbr\u003eOutput Voltage: Adjustable, 1.2 V to 32 V\u003cbr\u003eOutput Current: 5 A continuous (7 A peak)\u003cbr\u003eInput-Output Differential: 40 V max\u003cbr\u003eReference Voltage: 1.24 V typical\u003cbr\u003ePackage: TO-3 Steel Metal Can (K suffix)\u003cbr\u003eMounting: Chassis \/ Heatsink (2-hole flange)\u003cbr\u003eOperating Junction Temperature: 0 °C to +125 °C\u003cbr\u003eDate Code: 8512\u003cbr\u003eQuantity: 1\u003cbr\u003eCondition: New (New Old Stock)\u003cbr\u003e\u003cbr\u003eDESCRIPTION\u003cbr\u003eThis is one National Semiconductor LM338K STEEL 5-amp adjustable positive voltage regulator in a TO-3 steel can. It's new old stock and has never been installed. The case is marked with the National logo, \":H8512\", \"LM338K\" and \"STEEL.\" The can and flange show light surface wear, tarnish and handling marks from storage. The pins are intact. Please see the photos.\u003cbr\u003e\u003cbr\u003eFeatures:\u003cbr\u003eAdjustable output from 1.2 V to 32 V with two external resistors\u003cbr\u003e5 A guaranteed output current, 7 A peak\u003cbr\u003eLine regulation 0.005 %\/V typical; load regulation 0.1 % typical\u003cbr\u003e1.24 V typical reference voltage\u003cbr\u003eRipple rejection 60 dB, or about 75 dB with a 10 µF capacitor on the adjust pin\u003cbr\u003eInternal current limiting, thermal overload protection and safe-area protection\u003cbr\u003eTO-3 steel package, rated up to 50 W with proper heatsinking (1 °C\/W junction-to-case)\u003cbr\u003eThe case is the output terminal, so insulate it from the heatsink if needed\u003cbr\u003e\u003cbr\u003eCompatibility:\u003cbr\u003eDirect replacement for the LM338K in bench and lab power supplies, battery chargers, audio amplifier supplies, and industrial and test equipment. It's the 5 A, TO-3 counterpart of the LM338T (TO-220) and the higher-current sibling of the LM317K and LM350K adjustable regulators. The LM138K is the military-temperature version. Check pinout and heatsink requirements before installing.\u003cbr\u003e\u003cbr\u003eQ\u0026amp;A\u003cbr\u003eQ: What output current can the LM338K deliver?\u003cbr\u003eA: 5 A continuous and 7 A peak, per the National Semiconductor datasheet, with adequate heatsinking.\u003cbr\u003eQ: What's the output voltage range?\u003cbr\u003eA: Adjustable from 1.2 V to 32 V, set by two external resistors.\u003cbr\u003eQ: Is the case connected to a terminal?\u003cbr\u003eA: Yes. On the TO-3 package, the case is the output. Use an insulator kit if the heatsink isn't at output potential.\u003cbr\u003eQ: Is this new?\u003cbr\u003eA: Yes. It's new old stock and has never been installed. There's some light storage wear on the case.\u003cbr\u003e\u003cbr\u003eDISCLAIMER\u003cbr\u003eThe item shown in the photos is the exact item you will receive. Please review all photos and the description carefully before purchasing. Specifications are given for reference; verify compatibility with your equipment before installation.\u003cbr\u003e\u003cbr\u003eLEGAL DISCLAIMER\u003cbr\u003eAmerican Industrial Parts Group is not an authorized distributor or affiliate of National Semiconductor or Texas Instruments. Brand names, trademarks and part numbers are used for identification purposes only. Electrical components should be installed by qualified personnel in accordance with applicable codes.\u003cbr\u003e\u003cbr\u003elm338k, lm338k steel, LM338K STEEL, lm338k voltage regulator, lm338k replacement, lm338k equivalent, lm338k pinout, lm338k power supply, lm338 TO-3, LM338, National Semiconductor LM338K, NSC LM338K, 5 amp adjustable voltage regulator, TO-3 voltage regulator, adjustable power supply regulator, LM317K alternative, LM350K alternative, vintage National Semiconductor IC, power supply not regulating, NOS voltage regulator\u003cbr\u003e\u003cbr\u003eThank you for shopping with American Industrial Parts Group!","brand":"National Semiconductor","offers":[{"title":"Default Title","offer_id":49888755089563,"sku":"NS-LM338K-N","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/0857\/7435\/files\/national-semiconductor-lm338k-steel-5a-adjustable-voltage-regulator-to-3-1-american-industrial-parts-group.png?v=1792689524","url":"https:\/\/americanindustrialpartsgroup.com\/products\/national-semiconductor-lm338k-steel-5a-adjustable-voltage-regulator-to-3-nos","provider":"American Industrial Parts Group","version":"1.0","type":"link"}