{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM7812SX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM7812SX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM7812SX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM7812SX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM7812SX/NOPB, positive fixed linear regulator, 12 V output, 1.5 A, TO-263-4 D²Pak surface-mount package, 72 dB PSRR at 120 Hz.","salesMarkdown":"## 12 V fixed rail, 1.5 A continuous — surface-mount 7812 The LM7812SX/NOPB is a positive fixed-output linear regulator delivering 12 V at up to 1.5 A from a maximum input of 35 V. The 72 dB PSRR at 120 Hz means it cleans up rectified mains ripple well enough for sensitive analog loads without a post-filter. ## Dropout headroom and quiescent current Maximum dropout is 2 V at 1 A load — the input rail must stay above 14 V to maintain regulation at full current. Quiescent current runs 8 mA, which is typical for a 1.5 A linear regulator and factors into standby power on always-on rails. ## Active lifecycle, surface-mount package","metaTitle":"LM7812SX/NOPB – 12V 1.5A Positive Fixed Regulator, TO-263","metaDescription":"Texas Instruments LM7812SX/NOPB: 12V fixed output, 1.5A, 72dB PSRR at 120Hz, DDPAK/TO-263-3. Active lifecycle, ROHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"72dB (120Hz)","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-4, D²Pak (3 Leads + Tab), TO-263AA","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","Base Product Number":"LM7812","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C~125°C","Voltage - Input (Max)":"35V","Voltage Dropout (Max)":"2V @ 1A","Voltage - Output (Max)":"-","Supplier Device Package":"DDPAK/TO-263-3","Current - Quiescent (Iq)":"8 mA","Voltage - Output (Min/Fixed)":"12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9700","priceTiers":[{"qty":1,"price":"$1.97000","currency":"USD"},{"qty":10,"price":"$1.76700","currency":"USD"},{"qty":25,"price":"$1.66680","currency":"USD"},{"qty":100,"price":"$1.42020","currency":"USD"},{"qty":250,"price":"$1.33348","currency":"USD"},{"qty":500,"price":"$1.16680","currency":"USD"},{"qty":1000,"price":"$0.96677","currency":"USD"},{"qty":2500,"price":"$0.94350","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f3872e5e42c11c356e800e32f2654004.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM7812SX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is LM7812SX/NOPB a direct replacement for the through-hole LM7812CT?","answer":"Electrically yes — same 12 V fixed output, 1.5 A rating, same protection features. The difference is the package: LM7812CT is TO-220 through-hole; LM7812SX/NOPB is TO-263 surface-mount. The tab on both carries the output voltage, but the TO-263 footprint is different and requires a reflow profile, not a solder iron."},{"question":"Does LM7812SX/NOPB include overcurrent and thermal protection?","answer":"Yes — the datasheet lists over-temperature shutdown and short-circuit current limiting as built-in protection features. No external sense resistor or crowbar needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM7812SX-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM7812SX-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}