{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ4733E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ4733E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ4733E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ4733E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ4733E3/TR13 Zener Diode, 5.1 V, 2 W, ±10% Tolerance, DO-214AC SMA Package, Tape & Reel.","salesMarkdown":"## 5.1 V, 2 W — active production zener for general-purpose regulation The SMAJ4733E3/TR13 is a 5.1 V zener diode in the DO-214AC (SMA) surface-mount package, rated for 2 W continuous power dissipation. The 5.1 V nominal zener voltage with ±10% tolerance means the regulation point sits between 4.59 V and 5.61 V — wide enough for general-purpose rail clamping or shunt regulation but not precision reference duty. Maximum zener impedance of 7 Ohms at the test current means the output voltage shifts about 7 mV per mA of bias current change; for a shunt regulator this sets the load-regulation floor. Reverse leakage is 10 µA max at 1 V reverse — low enough that in a 5 V rail clamp it draws negligible current below the zener threshold, preserving battery life in portable designs. ## Temperature grade and deployment environment Operating temperature range of -55°C to 150°C covers industrial floor automation, outdoor telecom enclosures, and under-hood automotive electronics where ambient peaks near 125°C. The DO-214AC footprint is a standard JEDEC outline for 2 W surface-mount zeners — reflow profile matches the standard 260°C peak for lead-free solder, no special handling beyond MSL level confirmation.","metaTitle":"Microchip SMAJ4733E3/TR13 Zener Diode, 5.1 V, 2 W, DO-214AC","metaDescription":"Active Microchip SMAJ4733E3/TR13 zener diode, 5.1 V nominal, 2 W, ±10% tolerance, DO-214AC SMA. -55 to 150°C. Quoted to order against RFQ.","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)":"7 Ohms","Operating Temperature":"-55°C~150°C","Supplier Device Package":"DO-214AC","Voltage - Zener (Nom) (Vz)":"5.1 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":[{"question":"What is the closest pin-compatible alternative to SMAJ4733E3/TR13 in the same family?","answer":"The base product number SMAJ473 covers the whole family; the SMAJ4733E3/TR13 is the 5.1 V variant. Any other voltage in the SMAJ473x series shares the same DO-214AC footprint and pinout — the deciding factor is the zener voltage you need."},{"question":"What package and reel format does SMAJ4733E3/TR13 ship in?","answer":"It ships in Tape & Reel (TR) format in the DO-214AC (SMA) surface-mount package, supplier device package DO-214AC. The reel quantity is standard for this package size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ4733E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ4733E3-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}}