{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ4733AE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ4733AE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ4733AE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ4733AE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ4733AE3/TR13 Zener Diode, 5.1 V, ±5% Tolerance, 2 W, DO-214AC (SMA), Tape & Reel.","salesMarkdown":"## 5.1 V regulation in a DO-214AC footprint The SMAJ4733AE3/TR13 is a 5.1 V Zener diode in the standard DO-214AC (SMA) surface-mount package, rated for 2 W continuous power dissipation. This is the voltage a 5 V rail clamps to or a low-voltage reference holds — the ±5% tolerance means the actual Zener voltage sits between 4.845 V and 5.355 V across the operating range. With a maximum impedance of 7 Ohms (Zzt), the regulation sharpness at the nominal bias current is tight enough for most shunt-reference or clamping roles — the voltage shift per mA of load current stays under 7 mV. ## Thermal and leakage profile for the BOM Reverse leakage is specified at 10 µA maximum with only 1 V reverse bias — a useful guard against battery drain in always-on circuits where the Zener sits across a lightly loaded rail. Forward voltage is 1.2 V max at 200 mA, so the diode conducts with standard silicon drop when forward-biased — this matters if the part doubles as a low-side clamp in a bidirectional protection stage. The TR13 suffix denotes Tape & Reel packaging, the standard format for high-volume pick-and-place assembly.","metaTitle":"Microchip SMAJ4733AE3/TR13 Zener Diode, 5.1 V, 2 W","metaDescription":"SMAJ4733AE3/TR13 Zener diode, 5.1 V nominal, ±5% tolerance, 2 W max, DO-214AC (SMA) surface mount. Active production, sourced to order.","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":"±5%","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":"$0.6450","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ebad8f820d8ea0d9e07e6ed7b505adea.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Microchip provide for SMAJ4733AE3/TR13?","answer":"Microchip provides RoHS and REACH compliance documentation for this part. The e3 suffix in the order code indicates matte-tin plating (Sn), which is RoHS-compliant and compatible with lead-free reflow profiles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ4733AE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ4733AE3-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}}