{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"QST9TR","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"QST9TR","canonicalUrl":"https://icboms.com/rohm/QST9TR","factsUrl":"https://icboms.com/api/mcp/products/QST9TR","rawCanonicalId":null},"summary":{"shortDescription":"ROHM QST9TR dual PNP transistor, 30V VCEO, 1A IC, 320MHz transition frequency, 1.25W max power, in TSMT6 (SC-95) surface-mount package.","salesMarkdown":"The ROHM QST9TR is a dual PNP transistor array in a compact TSMT6 (SC-95) surface-mount package. ## Key ratings that decide the fit The 320 MHz transition frequency (fT) means this part can handle fast switching in DC-DC converters or level shifters without excessive switching loss. The minimum DC current gain of 270 at 100 mA collector current means a microcontroller I/O pin can drive the base directly through a modest resistor, saving a driver stage. Saturation voltage is specified at 350 mV max at 500 mA collector current — low enough to keep dissipation manageable in a 1.25 W package. ## Lifecycle and sourcing reality It is ROHS3 compliant.","metaTitle":"QST9TR Dual PNP Transistor, 30V 1A, 320MHz, TSMT6","metaDescription":"QST9TR dual PNP transistor in TSMT6 (SC-95) package. 30V VCEO, 1A IC, 320MHz fT, hFE min 270 at 100mA. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"1.25W","Mounting Type":"Surface Mount","Package / Case":"SOT-23-6 Thin, TSOT-23-6","Transistor Type":"2 PNP (Dual)","lifecycle_stage":"eol_hot","Operating Temperature":"150°C (TJ)","Frequency - Transition":"320MHz","Supplier Device Package":"TSMT6 (SC-95)","Vce Saturation (Max) @ Ib, Ic":"350mV @ 25mA, 500mA","Current - Collector (Ic) (Max)":"1A","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"270 @ 100mA, 2V","Voltage - Collector Emitter Breakdown (Max)":"30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.62000","currency":"USD"},{"qty":10,"price":"$0.52900","currency":"USD"},{"qty":100,"price":"$0.36760","currency":"USD"},{"qty":500,"price":"$0.28704","currency":"USD"},{"qty":1000,"price":"$0.23331","currency":"USD"},{"qty":3000,"price":"$0.20857","currency":"USD"},{"qty":6000,"price":"$0.19796","currency":"USD"},{"qty":9000,"price":"$0.18382","currency":"USD"},{"qty":30000,"price":"$0.17958","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6fd6beb14fd851c435cfb28f12c57b6e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to QST9TR?","answer":"The QST9TR is a dual PNP transistor in TSMT6 (SC-95). A direct pin-compatible alternative would need the same package and dual PNP configuration. The evidence does not list an official cross-reference or second-source part number."},{"question":"What is the QST9TR's maximum power dissipation?","answer":"The maximum power dissipation is 1.25 W."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/QST9TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/QST9TR 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}}