{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM385LPRE3-1-2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM385LPRE3-1-2","canonicalUrl":"https://icboms.com/texas-instruments/LM385LPRE3-1-2","factsUrl":"https://icboms.com/api/mcp/products/LM385LPRE3-1-2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM385 series, Shunt Voltage Reference, Fixed, 1.235 V, ±2%, 20 mA output, TO-226-3 / TO-92-3 (TO-226AA) Formed Leads, Through Hole, 0°C~70°C.","salesMarkdown":"## 1.235 V fixed shunt reference — active and in production It delivers a stable output with a typical temperature coefficient of 20 ppm/°C and an initial tolerance of ±2%. ## Output current and cathode current — bias design limits Rated for 20 mA maximum output current, the LM385LPRE3-1-2 can supply moderate loads. The minimum cathode current is 15 µA, which sets the lower bound for the bias resistor in a shunt configuration — design the bias current above this floor to maintain regulation. The 60 µVrms noise spec (10 Hz to 10 kHz) gives a baseline for low-noise analog paths; the shunt topology itself adds no series noise, so the reference's own noise floor is the limit.","metaTitle":"LM385LPRE3-1-2 Shunt Voltage Reference, 1.235 V Fixed, ±2%","metaDescription":"Texas Instruments LM385LPRE3-1-2 shunt voltage reference: 1.235 V fixed output, ±2% tolerance, 20 mA output, 20 ppm/°C tempco.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±2%","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"20 mA","Current - Supply":"-","Current - Cathode":"15 µA","Base Product Number":"LM385","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"60µVrms","Operating Temperature":"0°C~70°C(TA)","Supplier Device Package":"TO-92-3","Temperature Coefficient":"20ppm/°CTypical","Voltage - Output (Min/Fixed)":"1.235V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2432","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM385LPRE3-1-2/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of LM385LPRE3-1-2?","answer":"The initial tolerance is ±2% at 25°C. This sets the uncalibrated accuracy floor for the reference voltage; system calibration can tighten the effective error budget."},{"question":"Is LM385LPRE3-1-2 equivalent to LM385Z?","answer":"Both are part of the LM385 family of shunt references. The LM385LPRE3-1-2 is a specific tape-and-reel variant in the TO-92-3 package with formed leads. Electrical equivalence depends on the exact tolerance and temperature grade of the LM385Z variant being compared — verify the suffix against your BOM's required specs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM385LPRE3-1-2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM385LPRE3-1-2 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}}