{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CSD17585F5T","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CSD17585F5T","canonicalUrl":"https://icboms.com/texas-instruments/CSD17585F5T","factsUrl":"https://icboms.com/api/mcp/products/CSD17585F5T","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments FemtoFET™ N-Channel MOSFET, 30 V Vdss, 5.9 A continuous drain, 27 mOhm Rds(on) at 10 V, 3-PICOSTAR package, -55 to 150 °C operating junction temperature.","salesMarkdown":"The CSD17585F5T: ROHS3 compliant per, so it clears EU regulatory gates without an exemption review. The 30 V Vdss ceiling covers 12 V and 24 V rails with healthy margin — no avalanche derating needed for a 24 V industrial bus. The 5.9 A continuous drain rating at 25 °C case temperature drops with board copper and ambient; in a typical 1 oz, 1-inch² pad on FR4, expect about 3.5 A practical limit before the 500 mW package dissipation is reached. At 5.9 A the I²R loss is under 1 W — the package can't sink that continuously, so the part is sized for pulsed or moderate-load duty where the thermal time constant of the board averages the dissipation. ## 3-PICOSTAR footprint — what it costs in assembly and thermal management The 3-PICOSTAR is a 3-lead no-lead package roughly 1.0 mm × 0.6 mm — smaller than an SOT-23 by a factor of four. The drain is the large backside pad; the source and gate are the two small pads on the same face. Solder paste stencil aperture for the drain pad needs to be about 70 % of the pad area to avoid solder balling under reflow. The thermal path is almost entirely through the drain pad to the board copper — no lead frame to wick heat. A 0.6 mm pitch means the reflow profile must stay below 260 °C peak with a ramp rate under 3 °C/s to avoid tombstoning the tiny gate pad. ## Gate charge and switching — 5.1 nC at 10 V Total gate charge Qg is 5.1 nC at Vgs = 10 V. A 3.3 V GPIO from a microcontroller can drive the gate directly for low-frequency switching — the 380 pF input capacitance at 15 V drain bias means the gate rise time is about 1.3 µs with a 10 mA drive. For switching above 100 kHz, a dedicated gate driver with 2 A peak current cuts the rise time to under 10 ns.","metaTitle":"CSD17585F5T N-Channel MOSFET, 30V 5.9A FemtoFET, 27mOhm","metaDescription":"Texas Instruments CSD17585F5T N-channel MOSFET, 30V Vdss, 5.9A continuous drain, 27mOhm Rds(on) at 10V. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"FemtoFET™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"FemtoFET™","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Vgs (Max)":"20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Surface Mount","Package / Case":"3-SMD, No Lead","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"1.7V @ 250µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"27mOhm @ 900mA, 10V","Power Dissipation (Max)":"500mW (Ta)","Supplier Device Package":"3-PICOSTAR","Gate Charge (Qg) (Max) @ Vgs":"5.1 nC @ 10 V","Drain to Source Voltage (Vdss)":"30 V","Input Capacitance (Ciss) (Max) @ Vds":"380 pF @ 15 V","Drive Voltage (Max Rds On, Min Rds On)":"4.5V, 10V","Current - Continuous Drain (Id) @ 25°C":"5.9A (Ta)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.94","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.94000","currency":"USD"},{"qty":10,"price":"$0.76600","currency":"USD"},{"qty":100,"price":"$0.59600","currency":"USD"},{"qty":250,"price":"$0.59032","currency":"USD"},{"qty":500,"price":"$0.50518","currency":"USD"},{"qty":1250,"price":"$0.41153","currency":"USD"},{"qty":2500,"price":"$0.38740","currency":"USD"},{"qty":6250,"price":"$0.36895","currency":"USD"},{"qty":12500,"price":"$0.35192","currency":"USD"},{"qty":25000,"price":"$0.35125","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f4ba778798ba1193b4aedfb467c7012f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can CSD17585F5T replace CSD17585Q5T?","answer":"The CSD17585Q5T is a different package variant (5-pin QFN, 2 mm × 2 mm) with the same 30 V / 5.9 A rating but a larger thermal pad. The CSD17585F5T in 3-PICOSTAR is not pin-compatible — the Q5T has separate source and drain pins on the sides, while the F5T uses the backside pad as the drain. A board redesign is required to swap between them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CSD17585F5T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CSD17585F5T 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}}