{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM285BXZ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM285BXZ","canonicalUrl":"https://icboms.com/texas-instruments/LM285BXZ","factsUrl":"https://icboms.com/api/mcp/products/LM285BXZ","rawCanonicalId":null},"summary":{"shortDescription":"onsemi LM285BXZ, Shunt Voltage Reference, Adjustable, ±1% Tolerance, 1.24V to 5.3V Output, 20mA Output, 45µA Cathode, 30ppm/°C, TO-226-3/TO-92-3, Through Hole, -40°C to 85°C.","salesMarkdown":"## Shunt reference in a TO-92 — what it does and where it fits The LM285BXZ: The shunt-mode design lets you set the output between 1.24 V and 5.3 V with two external resistors, covering ADC bias and op-amp rails. ±1% tolerance and 30 ppm/°C tempco keep drift predictable across the -40°C to 85°C range. ## Package and assembly — through-hole reality The TO-92-3 is a three-lead through-hole package. It is hand-inserted or wave-soldered onto the board. No SMT reflow profile applies. The supplier device package is also TO-92-3. ## Lifecycle and compliance RoHS compliance is listed as non-compliant, so verify whether your project allows lead-bearing parts.","metaTitle":"LM285BXZ Voltage Reference, Shunt, Adjustable, ±1%, TO-92-3","metaDescription":"LM285BXZ adjustable shunt voltage reference from onsemi. ±1% tolerance, 1.24V to 5.3V output, 30ppm/°C tempco, TO-92-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Tolerance":"±1%","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"20 mA","Current - Cathode":"45 µA","Noise - 10Hz to 10kHz":"50µVrms","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Output (Max)":"5.3 V","Supplier Device Package":"TO-92-3","Temperature Coefficient":"30ppm/°C","Voltage - Output (Min/Fixed)":"1.24V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.41","stockQuantity":0,"priceTiers":[{"qty":213,"price":"$1.41000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/683e465fd23b876225177888a9c9d134.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM285BXZ a shunt or series voltage reference?","answer":"It is a shunt reference — it operates like a programmable Zener diode, requiring a series resistor from the supply to the cathode to set the bias current."},{"question":"What is the tolerance and temperature stability of LM285BXZ?","answer":"Initial tolerance is ±1%. The temperature coefficient is 30 ppm/°C over the -40°C to 85°C operating range."},{"question":"Can LM285BXZ replace LM285Z?","answer":"The LM285BXZ is a higher-tolerance version of the base LM285Z. The B-suffix indicates ±1% tolerance versus the standard ±2% or ±3% grades. Pinout and package are the same TO-92-3, so it is a drop-in replacement where tighter accuracy is needed."},{"question":"When sourcing LM285BXZ, what is the closest functional alternative?","answer":"A surface-mount alternative with tighter specs is the LM4132AMF-4.1/NOPB, a series reference with ±0.05% tolerance, 20 ppm/°C tempco, and fixed 4.096 V output in SOT-23. It is not pin-compatible — different package and topology — but serves a similar voltage-reference role where higher accuracy and SMT assembly are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM285BXZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM285BXZ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}