{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ST13009","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"ST13009","canonicalUrl":"https://icboms.com/stmicroelectronics/ST13009","factsUrl":"https://icboms.com/api/mcp/products/ST13009","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics ST13009 NPN bipolar power transistor, 400 V Vceo, 12 A Ic, 100 W max, TO-220-3 through-hole package, tube.","salesMarkdown":"## 400 V, 12 A NPN — the TO-220 that handles the heavy lift The ST13009: This puts it in the class of high-voltage switching transistors for off-line power supplies, fluorescent lamp ballasts, and medium-power inverters where a single TO-220 part handles the primary-side switch. The 2.5 V saturation voltage at 3 A base current and 12 A collector current (Vce(sat) max @ Ib=3A, Ic=12A) tells you the conduction loss at full load: at 12 A, expect about 30 W of dissipation in the saturated state, which drives the heatsinking requirement. The DC current gain of 10 minimum at 8 A, 5 V (hFE min @ Ic=8A, Vce=5V) confirms this is a high-current, moderate-gain device — the base drive needs to be sized accordingly. ## TO-220 package — will it survive the hot air? Housed in a TO-220-3 through-hole package, the ST13009 is a rework-friendly part. The tab is the collector, and the pinout is standard: base, collector, emitter left to right with the tab facing away. The copper tab is large enough to sink heat from a soldering iron on the collector pin without lifting the pad, as long as the iron tip is clean and the dwell time stays under 5 seconds per joint. Mounting is through-hole, so the leads go into plated holes on the PCB. The tab is typically soldered to a copper pour for heatsinking or bolted to an external heatsink with a TO-220 mounting clip and thermal pad. The tube packaging keeps the leads straight for auto-insertion.","metaTitle":"ST13009 NPN Power Transistor, 400V 12A TO-220","metaDescription":"STMicroelectronics ST13009 NPN bipolar power transistor, 400 V Vceo, 12 A Ic, 100 W max, TO-220-3 through-hole. Active, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Power - Max":"100 W","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Supplier Device Package":"TO-220","Vce Saturation (Max) @ Ib, Ic":"2.5V @ 3A, 12A","Current - Collector (Ic) (Max)":"12 A","DC Current Gain (hFE) (Min) @ Ic, Vce":"10 @ 8A, 5V","Voltage - Collector Emitter Breakdown (Max)":"400 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.73","priceTiers":[{"qty":1,"price":"$1.73000","currency":"USD"},{"qty":10,"price":"$1.43700","currency":"USD"},{"qty":100,"price":"$1.14390","currency":"USD"},{"qty":500,"price":"$0.96790","currency":"USD"},{"qty":1000,"price":"$0.82125","currency":"USD"},{"qty":2000,"price":"$0.78019","currency":"USD"},{"qty":5000,"price":"$0.75086","currency":"USD"},{"qty":10000,"price":"$0.72600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ae745fd513303858eef7fce8f3960446.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ST13009/alternatives.json"},"ai":{"faq":[{"question":"Will ST13009 drop into a panel that was specified around ST13007D without rewiring?","answer":"The ST13009 and ST13007D share the same TO-220-3 package and are both NPN transistors with 400 V Vceo. The ST13009 is rated for 12 A Ic and 100 W max power, while the ST13007D is rated for 8 A Ic and 80 W. The pinout is identical (base, collector, emitter), so the ST13009 is a functional drop-in replacement with higher current and power headroom. The base drive may need adjustment because the ST13009's hFE at 8 A is 10 minimum vs the ST13007D's 2 V saturation at 2 A base, 8 A collector — the saturation voltage characteristic differs, so verify the drive circuit's margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/ST13009","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/ST13009 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}