{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STP14NF12","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STP14NF12","canonicalUrl":"https://icboms.com/stmicroelectronics/STP14NF12","factsUrl":"https://icboms.com/api/mcp/products/STP14NF12","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STP14NF12, STripFET™ II, N-Channel MOSFET, 120 V Vdss, 14 A Id, 180 mOhm Rds(on) at 10 V, 21 nC Qg, TO-220-3 through hole, -55 to 175 °C.","salesMarkdown":"## 120 V, 14 A N-channel — where this part fits The STP14NF12 is a 120 V, 14 A N-channel power MOSFET from STMicroelectronics' STripFET™ II series, built with a planar stripe technology that keeps gate charge low at 21 nC (typical at 10 V). Any stock you find today is what remains in the channel; there will be no last-time-buy window because the obsolescence has already occurred. ## Gate charge and switching — what 21 nC means With a typical gate charge of 21 nC at 10 V, the STP14NF12 is a relatively light load for a gate driver. A 1 A gate driver can charge the gate in about 21 ns, which keeps switching losses low in a 100 kHz SMPS or DC-DC converter. If you are replacing this part in an existing design, the low Qg means you can often keep the same gate-drive circuit. ## Temperature range — -55 to 175 °C junction The threshold voltage (Vgs(th)) is specified at 4 V maximum with 250 µA drain current, so a 10 V gate drive is the safe choice for full enhancement — 5 V logic-level drive may not fully turn it on, as the Rds(on) is characterized at 10 V.","metaTitle":"STP14NF12 N-Channel MOSFET, 120 V, 14 A, STripFET II, TO-220","metaDescription":"STP14NF12 N-Channel MOSFET, 120 V drain-source, 14 A continuous drain, 180 mOhm Rds(on) at 10 V. STripFET II series, TO-220-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"STripFET™ II","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Base Product Number":"STP14N","Operating Temperature":"-55°C~175°C(TJ)","Rds On (Max) @ Id, Vgs":"180mOhm @ 7A, 10V","Power Dissipation (Max)":"60W (Tc)","Supplier Device Package":"TO-220","Gate Charge (Qg) (Max) @ Vgs":"21 nC @ 10 V","Drain to Source Voltage (Vdss)":"120 V","Input Capacitance (Ciss) (Max) @ Vds":"460 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"14A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/84d4441c4f5a49dc1b12daea7b68376d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STP14NF12/alternatives.json"},"ai":{"faq":[{"question":"What is a direct replacement for STP14NF12?","answer":"For a pin-compatible substitute, look for an N-channel MOSFET in TO-220-3 with similar ratings: 120 V Vdss, 14 A Id, 180 mOhm Rds(on) max, and a gate charge around 21 nC. Parts from the same STripFET II family with higher current ratings may fit the footprint but verify the gate drive voltage and thermal performance. Submit an RFQ for cross-reference assistance."},{"question":"What is the cross reference for STP14NF12 to other MOSFETs?","answer":"No official cross-reference is recorded for STP14NF12. For parametric equivalents, look for an N-channel MOSFET in TO-220 with 120 V Vdss, 14 A Id, and 180 mOhm Rds(on). Parts from the STP14N base number family (e.g., STP14NF10, STP14NF15) share the same package and similar current rating but differ in voltage — verify the drain-source voltage rating for your application."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STP14NF12","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STP14NF12 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}}