{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRLB8748PBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRLB8748PBF","canonicalUrl":"https://icboms.com/infineon/IRLB8748PBF","factsUrl":"https://icboms.com/api/mcp/products/IRLB8748PBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET IRLB8748PBF, N-Channel MOSFET, 30V Vdss, 92A Id, 4.8mOhm Rds(on) at 10V, 23nC Qg, TO-220AB through-hole, -55 to 175°C.","salesMarkdown":"## 30V, 92A, 4.8mOhm — the TO-220 workhorse The IRLB8748PBF: Gate charge is 23 nC at 4.5 V. The 2.35 V maximum threshold at 50 µA confirms it turns on from logic-level drive. The TO-220AB through-hole package is a standard three-lead power package with a metal tab for heatsinking — the 75 W power dissipation assumes the tab is bolted to a heatsink with adequate thermal interface. ## Where the 175°C rating matters Operating junction temperature spans -55°C to 175°C. Input capacitance is 2139 pF at 15 V Vds.","metaTitle":"IRLB8748PBF HEXFET N-Channel MOSFET, 30V 92A TO-220AB","metaDescription":"IRLB8748PBF HEXFET N-Channel MOSFET, 30V drain-source, 92A continuous, 4.8mOhm Rds(on) at 10V. Active production, TO-220AB through-hole.","metaKeywords":null},"attributes":{"series":"HEXFET®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-220-3","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"2.35V @ 50µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"4.8mOhm @ 40A, 10V","Power Dissipation (Max)":"75W (Tc)","Supplier Device Package":"TO-220AB","Gate Charge (Qg) (Max) @ Vgs":"23 nC @ 4.5 V","Drain to Source Voltage (Vdss)":"30 V","Input Capacitance (Ciss) (Max) @ Vds":"2139 pF @ 15 V","Drive Voltage (Max Rds On, Min Rds On)":"4.5V, 10V","Current - Continuous Drain (Id) @ 25°C":"92A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.86100","currency":"USD"},{"qty":100,"price":"$0.66960","currency":"USD"},{"qty":500,"price":"$0.56756","currency":"USD"},{"qty":1000,"price":"$0.46234","currency":"USD"},{"qty":2000,"price":"$0.43524","currency":"USD"},{"qty":5000,"price":"$0.41451","currency":"USD"},{"qty":10000,"price":"$0.39538","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/60b68338b17dce3abd128539c03e22c5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is IRLB8748PBF a direct replacement for IRFZ44N?","answer":"The IRFZ44N is a 55 V, 49 A MOSFET with a typical Rds(on) around 17.5 mOhm. The IRLB8748PBF is a 30 V, 92 A part with 4.8 mOhm — lower voltage rating and much lower on-resistance. They are not pin-compatible replacements; the IRLB8748PBF suits lower-voltage, higher-current designs where the IRFZ44N would be over-voltaged."},{"question":"What is the gate charge (Qg) of IRLB8748PBF?","answer":"Maximum gate charge is 23 nC at 4.5 V gate drive. This low Qg allows direct drive from a microcontroller GPIO or a logic-level gate driver without excessive switching losses."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRLB8748PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRLB8748PBF 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}}