{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STSA1805-AP","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STSA1805-AP","canonicalUrl":"https://icboms.com/stmicroelectronics/STSA1805-AP","factsUrl":"https://icboms.com/api/mcp/products/STSA1805-AP","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STSA1805-AP NPN transistor, 60 V Vce, 5 A Ic, hFE min 200 at 100 mA, 150 MHz ft, 1.1 W, TO-92AP through-hole, ROHS3, Active.","salesMarkdown":"## 60 V / 5 A NPN in a TO-92AP — what it fits The STMicroelectronics STSA1805-AP is an NPN bipolar junction transistor rated for a collector-emitter breakdown voltage of 60 V and a continuous collector current of 5 A, housed in the TO-92AP through-hole package. The 150 MHz transition frequency keeps switching losses manageable up to a few hundred kilohertz. ## Through-hole form factor and thermal budget The TO-92AP is a formed-lead variant of the TO-92-3 (TO-226AA) outline, with leads bent for direct insertion into a 0.1-inch pitch PCB grid or socket. Maximum power dissipation is 1.1 W — derate this figure for ambient temperatures above 25 °C; at 85 °C ambient the usable power drops to roughly 0.7 W without a heatsink. The junction temperature is rated to 150 °C, so the part can handle brief overloads in a well-ventilated enclosure, but continuous operation near the 5 A peak needs attention to the thermal path. ## Saturation voltage and cutoff leakage Vce saturation is specified at 600 mV maximum with a 200 mA base drive and 5 A collector current — a reasonable on-state voltage for a TO-92 device at this current level. Collector cutoff leakage is just 100 nA maximum (ICBO), which keeps off-state power dissipation negligible in battery-powered or high-impedance circuits.","metaTitle":"STSA1805-AP NPN Transistor, 60 V 5 A, TO-92AP, Active","metaDescription":"STSA1805-AP NPN transistor: 60 V Vce, 5 A Ic, hFE min 200, 150 MHz ft, TO-92AP through-hole. Active lifecycle, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Box (TB); Cut Tape (CT)","Power - Max":"1.1 W","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Frequency - Transition":"150MHz","Supplier Device Package":"TO-92AP","Vce Saturation (Max) @ Ib, Ic":"600mV @ 200mA, 5A","Current - Collector (Ic) (Max)":"5 A","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"200 @ 100mA, 2V","Voltage - Collector Emitter Breakdown (Max)":"60 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.33","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.33000","currency":"USD"},{"qty":10,"price":"$1.19200","currency":"USD"},{"qty":100,"price":"$0.92940","currency":"USD"},{"qty":500,"price":"$0.76774","currency":"USD"},{"qty":1000,"price":"$0.66710","currency":"USD"},{"qty":2000,"price":"$0.66710","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9958e386cf02ebe8c0c0adf5df09c4f1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current rating of STSA1805-AP?","answer":"The continuous collector current (Ic) is rated at 5 A maximum. The collector-emitter breakdown voltage is 60 V. These are the two headline ratings that define its switching capability."},{"question":"Is STSA1805-AP a Darlington transistor?","answer":"No. The STSA1805-AP is a single NPN BJT, not a Darlington pair. Its minimum DC current gain of 200 at 100 mA is typical for a medium-power single transistor, not the 1000+ gain range of a Darlington."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STSA1805-AP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STSA1805-AP when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:44:09.860Z","lastPublished":"2026-07-16T10:44:09.860Z","indexable":true}}