{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ4732E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ4732E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ4732E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ4732E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ4732E3/TR13 Zener diode, 4.7 V, 2 W, ±10% tolerance, DO-214AC SMA package, tape and reel.","salesMarkdown":"## 4.7 V Zener — thermal and tolerance budget The SMAJ4732E3/TR13 is a 4.7 V Zener diode rated for 2 W continuous power dissipation in the DO-214AC (SMA) surface-mount package. The ±10% tolerance on the nominal voltage means the actual zener voltage across a reel of parts falls between 4.23 V and 5.17 V at the test current — a factor to account for when setting a shunt regulator's output or a protection clamp's threshold. ## Package and reflow compatibility Supplied in Tape & Reel packaging, this part is ready for automated pick-and-place assembly. The DO-214AC (SMA) footprint is a standard JEDEC outline with a single cathode-band polarity mark — the pad layout matches the common SMA diode land pattern, so no footprint adjustment is needed for most designs. At the 2 W power limit, junction temperature rise must be calculated against the board's copper area and airflow — a 2 W Zener on a standard FR-4 pad without thermal vias can exceed 150°C junction in still air.","metaTitle":"Microchip SMAJ4732E3/TR13 Zener Diode, 4.7 V, 2 W, DO-214AC","metaDescription":"Microchip Technology SMAJ4732E3/TR13 Zener diode, 4.7 V nominal, 2 W, ±10% tolerance, DO-214AC SMA package. Active production, tape and reel. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Series":"-","Package":"Tape & Reel (TR)","Tolerance":"±10%","Power - Max":"2 W","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"SMAJ473","Impedance (Max) (Zzt)":"8 Ohms","Operating Temperature":"-55°C~150°C","Supplier Device Package":"DO-214AC","Voltage - Zener (Nom) (Vz)":"4.7 V","Current - Reverse Leakage @ Vr":"10 µA @ 1 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6150","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ebad8f820d8ea0d9e07e6ed7b505adea.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ4732E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ4732E3-TR13 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}}