{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STD724T4","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STD724T4","canonicalUrl":"https://icboms.com/stmicroelectronics/STD724T4","factsUrl":"https://icboms.com/api/mcp/products/STD724T4","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STD724T4 NPN power transistor, 3 A Ic, 30 V Vceo, 100 MHz fT, 15 W Pd, DPAK surface-mount package, 150°C junction temperature.","salesMarkdown":"The STMicroelectronics STD724T4 is an NPN bipolar power transistor in a DPAK (TO-252-3) surface-mount package. The 15 W maximum power dissipation and 150°C junction temperature rating suit it for medium-current switching and linear applications in 12 V and 24 V industrial, automotive, and consumer power rails — solenoid drivers, relay coils, small motor bridges, and linear regulators where the DPAK footprint keeps the board compact. ## 30 V Vceo — the rail voltage ceiling The 30 V collector-emitter breakdown is the hard ceiling. If your design runs from a 24 V supply that can see 30 V transients, the margin is gone — you need a higher-Vceo device. ## 3 A continuous collector current — what it drives The 3 A Ic rating defines the load it can switch continuously. For a solenoid or relay, that is roughly a 36 W load at 12 V. The saturation voltage is specified at 1.1 V max with 150 mA base drive into 3 A collector current — a typical forced-beta of 20, which is what you budget for base-drive resistor sizing in a saturated switch. The STD724T4 is officially obsolete per the manufacturer's product status.","metaTitle":"STD724T4 NPN Power Transistor, 3 A, 30 V, DPAK","metaDescription":"STD724T4 NPN bipolar power transistor. 3 A collector current, 30 V Vceo, 100 MHz fT, 15 W max power. DPAK surface mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"15 W","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Obsolete","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Base Product Number":"STD724","Operating Temperature":"150°C(TJ)","Frequency - Transition":"100MHz","Supplier Device Package":"DPAK","Vce Saturation (Max) @ Ib, Ic":"1.1V @ 150mA, 3A","Current - Collector (Ic) (Max)":"3 A","Current - Collector Cutoff (Max)":"100µA","DC Current Gain (hFE) (Min) @ Ic, Vce":"80 @ 1A, 2V","Voltage - Collector Emitter Breakdown (Max)":"30 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1b6bc3c9f162beddb81ed63d3cf06f9e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STD724T4/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STD724T4?","answer":"STMicroelectronics has not published a direct replacement for the STD724T4. For a new design, select a current-production NPN DPAK transistor with a 3 A collector current and 30 V Vceo rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STD724T4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STD724T4 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}}