{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N5819-1","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N5819-1","canonicalUrl":"https://icboms.com/microchip/1N5819-1","factsUrl":"https://icboms.com/api/mcp/products/1N5819-1","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N5819-1 Schottky rectifier, 45 V reverse, 1 A forward, 340 mV Vf, DO-204AL (DO-41) axial through-hole, Bulk.","salesMarkdown":"## Schottky rectifier for low-voltage rails The Microchip Technology 1N5819-1 is a 45 V, 1 A Schottky barrier rectifier in a through-hole DO-204AL (DO-41) axial package. Its 340 mV forward voltage drop at 1 A is the key selection parameter — that low Vf cuts conduction loss in rectification and freewheeling circuits where every millivolt of drop eats into the output rail margin. The 70 pF junction capacitance at 5 V and fast recovery (≤ 500 ns above 200 mA) mean it handles switching frequencies well beyond 50/60 Hz line rectification — suitable for DC-DC converter output rectification and flyback snubber clamping where the Schottky's lack of stored charge avoids reverse-recovery losses. ## Thermal and leakage profile Reverse leakage is 50 µA at the 45 V rated reverse voltage — this leakage doubles with temperature, so at 100 °C junction the standing loss through the diode in a reverse-biased OR-ing application needs to be budgeted. The DO-204AL (DO-41) axial-lead package is a standard through-hole footprint — it inserts into 0.040-inch diameter plated-through holes on a 0.100-inch pitch. The copper lead frame conducts heat to the PCB traces; for 1 A continuous duty, a 1-inch trace on each anode and cathode pad keeps the junction rise within the 125 °C limit.","metaTitle":"Microchip 1N5819-1 Schottky Diode, 45V 1A DO-41","metaDescription":"Microchip Technology 1N5819-1 Schottky rectifier, 45 V reverse, 1 A forward, 340 mV Vf. DO-204AL (DO-41) through-hole. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Bulk","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"DO-204AL, DO-41, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N5819","Capacitance @ Vr, F":"70pF @ 5V, 1MHz","Supplier Device Package":"DO-204AL (DO-41)","Current - Reverse Leakage @ Vr":"50 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Current - Average Rectified (Io)":"1A","Operating Temperature - Junction":"-65°C~125°C","Voltage - Forward (Vf) (Max) @ If":"340 mV @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.6950","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1N5819-1 come in?","answer":"Through-hole DO-204AL (DO-41) axial-lead package, supplied in Bulk. The anode is the banded end; the cathode is the unbanded lead."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N5819-1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N5819-1 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}}