{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4742CP/TR8","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4742CP-TR8","canonicalUrl":"https://icboms.com/microchip/1N4742CP-TR8","factsUrl":"https://icboms.com/api/mcp/products/1N4742CP%2FTR8","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4742CP/TR8 zener diode, 12 V nominal, 1 W power dissipation, ±2% tolerance, DO-204AL (DO-41) axial package, Tape & Reel.","salesMarkdown":"## 12 V zener — key parametrics for the BOM line The 1N4742CP/TR8 is a 12 V zener diode in the standard DO-204AL (DO-41) axial-lead package, rated for 1 W continuous power dissipation. The ±2% tolerance on Vz gives a tighter regulation window than the ±5% grade — useful when the zener sets a reference rail or clamps a supply within a narrow band. Maximum impedance (Zzt) is 9 Ohms at the test current, and reverse leakage is specified at 5 µA max with 9.1 V applied across the junction. The forward drop is 1.2 V max at 200 mA, consistent with a standard silicon die. ## Package and temperature grade Supplied in Tape & Reel (TR) for automated assembly, the part uses the through-hole DO-204AL (DO-41) body — a common footprint that mates with standard 0.025-inch square pin sockets or solder-in holes on a 0.100-inch pitch. ## Active lifecycle — sourcing posture Microchip lists the 1N4742CP/TR8 as an active device.","metaTitle":"Microchip 1N4742CP/TR8 Zener Diode, 12 V, 1 W, DO-41","metaDescription":"Active 12 V zener diode, 1 W, ±2% tolerance, 9 Ohms impedance, DO-204AL (DO-41) axial package. 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":"±2%","Power - Max":"1 W","Mounting Type":"Through Hole","Package / Case":"DO-204AL, DO-41, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N4742","Impedance (Max) (Zzt)":"9 Ohms","Operating Temperature":"-65°C~150°C","Supplier Device Package":"DO-204AL (DO-41)","Voltage - Zener (Nom) (Vz)":"12 V","Current - Reverse Leakage @ Vr":"5 µA @ 9.1 V","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 200 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2579cdb7aec091d0b5f99df5459e04c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1N4742CP/TR8?","answer":"The standard 1N4742A (1 W, 12 V, ±5% tolerance) in the same DO-41 package is a functional alternative if the tighter ±2% tolerance is not required, but it is not a direct pin-compatible substitute without verifying the BOM's tolerance budget."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4742CP-TR8","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4742CP-TR8 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}}