{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFZ44ES","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFZ44ES","canonicalUrl":"https://icboms.com/infineon/IRFZ44ES","factsUrl":"https://icboms.com/api/mcp/products/IRFZ44ES","rawCanonicalId":null},"summary":{"shortDescription":"IRFZ44ES, Infineon (International Rectifier) HEXFET® N-Channel MOSFET, 60 V Vdss, 48 A continuous drain, 23 mΩ Rds(on) at 10 V, TO-263-3 / D2PAK surface mount, -55°C to 175°C junction temperature.","salesMarkdown":"## 60 V, 48 A N-channel HEXFET in D2PAK It is packaged in a TO-263-3 (D2PAK) surface-mount package with the tab as the drain connection. The 60 nC total gate charge at 10 V is moderate; a standard gate driver with 1 A to 2 A peak current can switch it in the 50–100 ns range, but the 1360 pF input capacitance at 25 V drain-source means the driver must supply enough peak current to charge and discharge the gate quickly at high frequency. ## 175°C junction — military-temperature-range capability The 110 W power dissipation at case temperature is a package-limited figure; in practice, the D2PAK's thermal resistance to the PCB (junction-to-ambient) is around 40–60°C/W without a heatsink, so sustained high-current operation demands a well-designed copper footprint and possibly forced airflow. The 175°C Tj max gives headroom for transient overloads in harsh environments like engine bay electronics or downhole tools. For new designs, a pin-compatible replacement should be selected from the same HEXFET family — the IRFZ44N (TO-220) or IRFZ44NS (D2PAK) are common drop-in alternatives with similar Rds(on) and current ratings, though the exact parametric match should be verified against your operating point.","metaTitle":"IRFZ44ES HEXFET N-Channel MOSFET, 60V 48A, D2PAK","metaDescription":"IRFZ44ES N-channel HEXFET MOSFET in D2PAK: 60V Vdss, 48A Id, 23mΩ Rds(on) at 10V. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"HEXFET®","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Operating Temperature":"-55°C~175°C(TJ)","Rds On (Max) @ Id, Vgs":"23mOhm @ 29A, 10V","Power Dissipation (Max)":"110W (Tc)","Supplier Device Package":"D2PAK","Gate Charge (Qg) (Max) @ Vgs":"60 nC @ 10 V","Drain to Source Voltage (Vdss)":"60 V","Input Capacitance (Ciss) (Max) @ Vds":"1360 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"48A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8297556801f20f300fea4d4f2904bb7f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IRFZ44ES/alternatives.json"},"ai":{"faq":[{"question":"Is the IRFZ44ES obsolete?","answer":"Yes, the IRFZ44ES is listed as obsolete. It is no longer manufactured by Infineon. For new designs, consider the IRFZ44N or IRFZ44NS as pin-compatible alternatives with similar 60 V / 48 A ratings."},{"question":"What is the Rds(on) of the IRFZ44ES?","answer":"The maximum Rds(on) is 23 mΩ at 10 V gate drive with 29 A drain current. This is the on-resistance at the recommended drive voltage; operation at lower gate voltages will increase resistance significantly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFZ44ES","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFZ44ES when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:23:22.953Z","lastPublished":"2026-07-16T15:23:22.953Z","indexable":true}}