{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TIP42A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TIP42A","canonicalUrl":"https://icboms.com/stmicroelectronics/TIP42A","factsUrl":"https://icboms.com/api/mcp/products/TIP42A","rawCanonicalId":null},"summary":{"shortDescription":"TIP42A, PNP bipolar power transistor, 60 V Vceo, 6 A Ic, 2 W power dissipation, TO-220-3 through-hole package, 150°C junction temperature.","salesMarkdown":"The TIP42A is a PNP bipolar power transistor in a TO-220-3 through-hole package, rated for 60 V collector-emitter breakdown and 6 A continuous collector current. The saturation voltage is 1.5 V maximum at 6 A with 600 mA of base drive. Minimum DC current gain (hFE) is 15 at 3 A collector current and 4 V Vce. The TIP42A carries an official lifecycle status of Obsolete. For a new design, consider a modern PNP power transistor in a TO-220 package with similar voltage and current ratings — the 60 V, 6 A ceiling is a common tier, and several manufacturers offer active alternatives. The TIP42A remains a viable replacement for repair and legacy BOM lines where the original part is specified. ## TO-220 package — through-hole, heatsink-ready The TO-220-3 through-hole package allows bolting the metal tab to a heatsink with an insulating washer. The TO-220 package is hand-solderable with a standard iron — no hot-air or reflow profile needed. For a hobbyist or repair bench, this is a friendly footprint: the leads are robust, the tab gives good thermal contact to a heatsink, and you can socket it if needed.","metaTitle":"TIP42A PNP Power Transistor, 60V 6A TO-220, Obsolete","metaDescription":"TIP42A PNP bipolar power transistor, 60 V Vceo, 6 A Ic, 2 W power dissipation in TO-220 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tube","Power - Max":"2 W","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","Transistor Type":"PNP","lifecycle_stage":"eol_hot","Base Product Number":"TIP42","Operating Temperature":"150°C (TJ)","Frequency - Transition":"-","Supplier Device Package":"TO-220","Vce Saturation (Max) @ Ib, Ic":"1.5V @ 600mA, 6A","Current - Collector (Ic) (Max)":"6 A","Current - Collector Cutoff (Max)":"700µA","DC Current Gain (hFE) (Min) @ Ic, Vce":"15 @ 3A, 4V","Voltage - Collector Emitter Breakdown (Max)":"60 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1200","priceTiers":[{"qty":1,"price":"$1.04000","currency":"USD"},{"qty":10,"price":"$0.99000","currency":"USD"},{"qty":20,"price":"$0.94000","currency":"USD"},{"qty":50,"price":"$0.88000","currency":"USD"},{"qty":100,"price":"$0.86000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9b0f2b7073d9e63880dd0fda4db2d34f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TIP42A/alternatives.json"},"ai":{"faq":[{"question":"What is the TIP42A transistor?","answer":"The TIP42A is a PNP bipolar power transistor rated for 60 V collector-emitter breakdown and 6 A continuous collector current, with a 2 W power dissipation in a TO-220-3 through-hole package. It is used in linear regulators, power switches, motor drivers, and audio amplifier output stages where a PNP pass element is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TIP42A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TIP42A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T17:11:09.561Z","lastPublished":"2026-07-16T17:11:09.561Z","indexable":true}}