{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPSA92","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPSA92","canonicalUrl":"https://icboms.com/stmicroelectronics/STPSA92","factsUrl":"https://icboms.com/api/mcp/products/STPSA92","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPSA92 PNP transistor, TO-92-3 through-hole package, 300 V Vceo, 500 mA Ic, 50 MHz fT, 625 mW Pd.","salesMarkdown":"The STPSA92 is a high-voltage small-signal PNP transistor from STMicroelectronics, rated for 300 V collector-emitter breakdown and 500 mA continuous collector current. The 50 MHz transition frequency places it in the switching transistor class, suitable for line drivers, relay coil drivers, and high-voltage signal switching in telecom or industrial control boards. The TO-92-3 through-hole package keeps the footprint compatible with legacy designs and prototyping sockets. ## Key ratings for the BOM decision The 300 V Vceo is the headline spec — this transistor can hold off 300 V between collector and emitter. The 500 mV saturation voltage at 20 mA collector current (with 2 mA base drive) means the on-state loss is low enough for a 20 mA load without a heatsink. The 100 nA collector cutoff current (ICBO) keeps leakage negligible at room temperature, though it will rise with junction temperature — the 150°C junction rating gives headroom for warm environments. STMicroelectronics lists the STPSA92 as obsolete.","metaTitle":"STPSA92 PNP Transistor, 300 V, 500 mA, TO-92, Obsolete","metaDescription":"STPSA92 PNP transistor: 300 V Vceo, 500 mA Ic, 50 MHz fT, 625 mW, TO-92 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Bag","Power - Max":"625 mW","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","Product Status":"Obsolete","Transistor Type":"PNP","lifecycle_stage":"eol_hot","Base Product Number":"STPSA92","Operating Temperature":"150°C (TJ)","Frequency - Transition":"50MHz","Supplier Device Package":"TO-92-3","Vce Saturation (Max) @ Ib, Ic":"500mV @ 2mA, 20mA","Current - Collector (Ic) (Max)":"500 mA","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"40 @ 30mA, 10V","Voltage - Collector Emitter Breakdown (Max)":"300 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c08f4160987afa742c863c57e8be49ba.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPSA92/alternatives.json"},"ai":{"faq":[{"question":"Is STPSA92 obsolete?","answer":"Yes, STMicroelectronics lists the STPSA92 as obsolete. No official replacement part number has been published."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPSA92","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPSA92 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}}