{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM7812CT/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM7812CT-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM7812CT-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM7812CT%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM7812CT/NOPB, fixed 12V output, 1A, positive linear voltage regulator, TO-220-3 through-hole package, PSRR 72dB at 120Hz, 35V max input, 0°C~125°C operating temperature.","salesMarkdown":"## 12 V fixed rail for analog and control boards The Texas Instruments LM7812CT/NOPB is a classic 12 V fixed-output linear regulator in the 78xx family, delivering up to 1 A continuous in a TO-220-3 through-hole package. It's the go-to part when you need a clean, regulated 12 V rail from an unregulated DC supply — think op-amp supplies, sensor excitation, relay coil power, or the analog front-end on a motor drive board. ## 72 dB ripple rejection — why it matters for sensitive loads The 72 dB PSRR at 120 Hz is the spec that separates this part from a generic 78xx. That 120 Hz ripple is exactly what you get from a full-wave rectified AC supply. ## Input voltage range and dropout headroom Maximum input is 35 V. The dropout voltage is 2 V max at 1 A load. ## Built-in protection — the part that survives a short Overcurrent, overtemperature, and short-circuit protection are all on-chip. The thermal shutdown cycles the regulator if the junction hits the limit — the part gets hot, shuts off, cools down, and restarts. On a repair bench, that's the signature of a 78xx that's still alive after a downstream fault. The scorch mark on the board tells you something else died, not the regulator. ## Active lifecycle — no LTB planning needed No last-time-buy notice, no end-of-life risk for current production runs. The TO-220-3 package is a standard footprint that's been in the catalog for decades — no surprise obsolescence coming.","metaTitle":"LM7812CT/NOPB 12V 1A Linear Regulator, TO-220-3, Active","metaDescription":"Texas Instruments LM7812CT/NOPB fixed 12V output, 1A linear regulator in TO-220-3. PSRR 72dB at 120Hz. Overcurrent, overtemperature, short-circuit protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"72dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1A","Base Product Number":"LM7812","Protection Features":"Over Current, 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":"TO-220-3","Current - Quiescent (Iq)":"8 mA","Voltage - Output (Min/Fixed)":"12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f3872e5e42c11c356e800e32f2654004.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM7812CT%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Does LM7812CT/NOPB have overcurrent and short-circuit protection?","answer":"Yes, it includes overcurrent, overtemperature, and short-circuit protection on-chip."},{"question":"Is LM7812CT/NOPB RoHS compliant?","answer":"The NOPB suffix indicates lead-free (RoHS-compliant) construction. No lead in the solder plating or device terminations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM7812CT-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/LM7812CT-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}