{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1009IZ#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1009IZ~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LT1009IZ~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LT1009IZ%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Linear Technology LT1009IZ#PBF precision shunt voltage reference, fixed 2.5 V output, ±0.2% initial tolerance, 35 ppm/°C temperature coefficient, 10 mA output current, through-hole TO-92-3 package, -40°C to 85°C operating range.","salesMarkdown":"## Precision 2.5 V shunt reference for industrial bias and ADC references The LT1009IZ#PBF from Linear Technology is a precision shunt voltage reference delivering a fixed 2.5 V output with ±0.2% initial tolerance and a temperature coefficient of 35 ppm/°C. Designed as a shunt (two-terminal) reference, it requires only an external resistor to set the bias current, simplifying the BOM for generating a stable voltage rail in mixed-signal and control circuits. The ±0.2% tolerance and 35 ppm/°C temperature coefficient keep the output stable over temperature. ## Shunt topology — bias resistor sets the operating point As a shunt reference, the LT1009IZ#PBF regulates by sinking current from the supply through an external resistor. The cathode current must stay above 400 µA to maintain regulation. ## Through-hole TO-92-3 — legacy footprint, easy retrofit The TO-92-3 through-hole package mates with standard prototyping boards and existing PCB layouts. For procurement teams freezing a BOM, this part is safe to specify into production without an imminent discontinuation risk.","metaTitle":"LT1009IZ#PBF Shunt Voltage Reference, 2.5V ±0.2%, TO-92-3","metaDescription":"Linear Technology LT1009IZ#PBF precision 2.5V shunt reference, ±0.2% tolerance, 35ppm/°C drift, TO-92-3 through hole. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Bulk","Tolerance":"±0.2%","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Cathode":"400 µA","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"TO-92-3","Temperature Coefficient":"35ppm/°C","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.8","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.80000","currency":"USD"},{"qty":10,"price":"$7.04200","currency":"USD"},{"qty":25,"price":"$6.71440","currency":"USD"},{"qty":100,"price":"$5.83020","currency":"USD"},{"qty":250,"price":"$5.56816","currency":"USD"},{"qty":500,"price":"$5.07688","currency":"USD"},{"qty":1000,"price":"$4.63500","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How to use LT1009IZ#PBF in a circuit?","answer":"Connect the cathode to the load and the anode to ground. Place a resistor from the positive supply to the cathode to bias the reference above 400 µA cathode current. The output voltage is fixed at 2.5 V. No output capacitor is needed for stability."},{"question":"Is LT1009IZ#PBF compatible with 3.3V systems?","answer":"Yes. With a 2.5 V output and a minimum cathode current of 400 µA, a 3.3 V supply leaves 0.8 V across the bias resistor. For a 1 mA total current (load + cathode), a 680 Ω resistor works. The 10 mA output current limit is sufficient for most 3.3 V ADC reference inputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1009IZ~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1009IZ~4PBF 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}}