{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"N0434N-S23-AY","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"N0434N-S23-AY","canonicalUrl":"https://icboms.com/renesas/N0434N-S23-AY","factsUrl":"https://icboms.com/api/mcp/products/N0434N-S23-AY","rawCanonicalId":null},"summary":{"shortDescription":"N-Channel MOSFET, 40 V Vdss, 100 A Id, 3.7 mOhm Rds(on) @ 50 A / 10 V, 100 nC Qg, TO-262-3 through-hole package, 150°C junction temperature, ROHS3 compliant.","salesMarkdown":"## 40 V / 100 A N-channel — the conduction-loss floor The N0434N-S23-AY is a 40 V, 100 A N-channel power MOSFET in a TO-262 through-hole package, built on a standard planar MOSFET process. At 100 A continuous drain current, the package dissipation ceiling of 119 W at the case (Tc) tells you the thermal path to the heatsink is the real limit, not the silicon. ## Gate charge and switching budget Total gate charge is 100 nC at 10 V, with an input capacitance of 5550 pF at 25 V drain-source. For a 100 kHz switching frequency, the gate-drive power is roughly Qg × Vgs × fsw = 100 nC × 10 V × 100 kHz = 100 mW, well within a standard gate-driver IC's capability. The 10 V drive voltage is mandatory to achieve the rated Rds(on) — driving at 5 V leaves the channel partially enhanced and the on-resistance climbs. ## Package and thermal reality The TO-262-3 (I²Pak variant with long leads) is a through-hole package intended for a heatsink mount — the 1.5 W dissipation in still air (Ta) versus 119 W at the case (Tc) is the delta between no heatsink and a proper thermal interface. The 150°C maximum junction temperature is standard for this class; the practical junction temperature for a 100 A pulse is limited by the package's thermal resistance, not the die. The long leads on the TO-262 allow the part to sit above the PCB for airflow or to reach a chassis-mount heatsink. ## Lifecycle and compliance It is ROHS3 compliant, with no halogen or lead restrictions beyond the standard exemptions. The ±20 V maximum gate-source voltage is a hard limit; the drive circuit must clamp transients below this rail or the gate oxide ruptures.","metaTitle":"N0434N-S23-AY N-Channel MOSFET, 40V 100A TO-262","metaDescription":"N-Channel MOSFET, 40 V drain-source, 100 A continuous drain, 3.7 mOhm Rds(on) at 10 V. TO-262 through-hole package. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-262-3 Long Leads, I²Pak, TO-262AA","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Rds On (Max) @ Id, Vgs":"3.7mOhm @ 50A, 10V","Power Dissipation (Max)":"1.5W (Ta), 119W (Tc)","Supplier Device Package":"TO-262","Gate Charge (Qg) (Max) @ Vgs":"100 nC @ 10 V","Drain to Source Voltage (Vdss)":"40 V","Input Capacitance (Ciss) (Max) @ Vds":"5550 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"100A (Ta)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.60000","currency":"USD"},{"qty":10,"price":"$2.16000","currency":"USD"},{"qty":100,"price":"$1.71940","currency":"USD"},{"qty":500,"price":"$1.45486","currency":"USD"},{"qty":1000,"price":"$1.23442","currency":"USD"},{"qty":2000,"price":"$1.17270","currency":"USD"},{"qty":5000,"price":"$1.12861","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4ab528004a50d4848c669fce05c79497.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of N0434N-S23-AY?","answer":"The maximum on-resistance is 3.7 mOhm at a drain current of 50 A with a 10 V gate-source drive. This is the conduction-loss figure used for thermal and efficiency calculations at the rated operating point."},{"question":"Is N0434N-S23-AY RoHS compliant?","answer":"Yes, it is listed as ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/N0434N-S23-AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/N0434N-S23-AY when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}