{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STN790A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STN790A","canonicalUrl":"https://icboms.com/stmicroelectronics/STN790A","factsUrl":"https://icboms.com/api/mcp/products/STN790A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STN790A PNP bipolar transistor, 30 V VCEO, 3 A Ic, 100 MHz transition frequency, SOT-223 surface-mount package, ROHS3 compliant.","salesMarkdown":"## PNP medium-power switch in SOT-223 The STN790A is a PNP bipolar junction transistor from STMicroelectronics rated for 30 V collector-emitter breakdown and 3 A continuous collector current. It comes in a SOT-223 surface-mount package, which is a three-lead plus tab design that reflows easily and can be hand-soldered with a fine-tip iron or hot air. The 100 MHz transition frequency makes it suitable for medium-speed switching and linear regulation up into the low-MHz range. ## What the 3 A and 30 V ratings mean for your circuit The 3 A collector current is the continuous DC limit; pulsed operation can go higher if the junction temperature stays within the 150 °C maximum. At 3 A the saturation voltage is 700 mV typical, which gives a conduction loss around 2.1 W — that exceeds the 1.6 W package power limit, so in practice you derate the current or use pulse-width modulation to keep the average dissipation under the thermal ceiling. The 30 V VCEO is the collector-emitter breakdown with the base open; for inductive loads add a snubber or clamp diode to keep the flyback voltage below that limit. ## Rework and footprint notes SOT-223 is one of the more forgiving surface-mount packages for rework. The tab is the collector and provides both electrical connection and thermal path. ## Lifecycle and procurement status ROHS3 compliant.","metaTitle":"STN790A PNP Transistor, 30V 3A SOT-223, Active","metaDescription":"STN790A PNP bipolar transistor: 30 V VCEO, 3 A Ic, 100 MHz fT, SOT-223. Active lifecycle, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"1.6 W","Mounting Type":"Surface Mount","Package / Case":"TO-261-4, TO-261AA","Transistor Type":"PNP","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Frequency - Transition":"100MHz","Supplier Device Package":"SOT-223","Vce Saturation (Max) @ Ib, Ic":"700mV @ 100mA, 3A","Current - Collector (Ic) (Max)":"3 A","Current - Collector Cutoff (Max)":"10µA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"100 @ 500mA, 2V","Voltage - Collector Emitter Breakdown (Max)":"30 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.69","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.69000","currency":"USD"},{"qty":10,"price":"$0.60400","currency":"USD"},{"qty":100,"price":"$0.46310","currency":"USD"},{"qty":500,"price":"$0.36612","currency":"USD"},{"qty":1000,"price":"$0.30222","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7351a2d0c6e827348f6b86964fffd7df.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STN790A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STN790A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T11:05:00.891Z","lastPublished":"2026-07-16T11:05:00.891Z","indexable":true}}