{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CSD85301Q2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CSD85301Q2","canonicalUrl":"https://icboms.com/texas-instruments/CSD85301Q2","factsUrl":"https://icboms.com/api/mcp/products/CSD85301Q2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments NexFET™ series, CSD85301Q2, Dual N-Channel MOSFET, 20V Vdss, 5A Id, 27mOhm Rds(on) at 4.5V Vgs, Logic Level Gate, 6-WSON (2x2mm) package, -55°C to 150°C.","salesMarkdown":"## 27 mOhm on-resistance at 4.5V — conduction loss floor Maximum Rds(on) is 27 mOhm at Id=5A and Vgs=4.5V. This is the figure that sets the I²R conduction loss in a 5V-driven design. At 5A the dissipation is under 0.7W per channel, well within the 2.3W package power limit when the exposed pad is soldered to a suitable copper area. Gate charge is 5.4 nC max at 4.5V, and input capacitance Ciss is 469 pF at Vds=10V. These numbers keep the gate-drive energy low — a 5V GPIO from a microcontroller or a dedicated driver can switch the pair at moderate frequency without excessive crossover loss. ## 2x2 mm WSON with exposed pad — layout checklist The 6-WSON package measures 2x2 mm with an exposed thermal pad. The 0.50 mm pitch is manageable on a two-layer board if the drain and source traces are kept wide enough for 5A. Operating junction temperature range is -55°C to 150°C. The 150°C ceiling gives headroom in high-ambient environments such as telecom enclosures or automotive cabin-adjacent modules, provided the thermal resistance of the board keeps the junction below the derating threshold at full load. For a procurement desk qualifying a new BOM, this part does not carry the single-source risk that an NRND or EOL part would.","metaTitle":"CSD85301Q2 NexFET Dual N-Ch MOSFET, 20V 5A, 27mOhm at 4.5V","metaDescription":"Texas Instruments CSD85301Q2 NexFET dual N-channel MOSFET. 20V Vdss, 5A Id, 27mOhm Rds(on) at 4.5V. 6-WSON 2x2mm package. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"NexFET™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"NexFET™","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"2 N-Channel (Dual)","FET Feature":"Logic Level Gate, 5V Drive","Power - Max":"2.3W","Mounting Type":"Surface Mount","Package / Case":"6-WDFN Exposed Pad","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"1.2V @ 250µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"27mOhm @ 5A, 4.5V","Supplier Device Package":"6-WSON (2x2)","Gate Charge (Qg) (Max) @ Vgs":"5.4nC @ 4.5V","Drain to Source Voltage (Vdss)":"20V","Input Capacitance (Ciss) (Max) @ Vds":"469pF @ 10V","Current - Continuous Drain (Id) @ 25°C":"5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.67","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.67000","currency":"USD"},{"qty":10,"price":"$0.57500","currency":"USD"},{"qty":100,"price":"$0.42920","currency":"USD"},{"qty":500,"price":"$0.33726","currency":"USD"},{"qty":1000,"price":"$0.26061","currency":"USD"},{"qty":3000,"price":"$0.23761","currency":"USD"},{"qty":6000,"price":"$0.22229","currency":"USD"},{"qty":15000,"price":"$0.20695","currency":"USD"},{"qty":30000,"price":"$0.19622","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9829f4da7435c72fbfaa0cab74d8ae5d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of CSD85301Q2 at 4.5V?","answer":"Maximum on-resistance is 27 mOhm at Id=5A and Vgs=4.5V. This is the worst-case figure for conduction-loss calculations at the rated current."},{"question":"Is CSD85301Q2 compatible with 3.3V logic?","answer":"The gate threshold voltage Vgs(th) is 1.2V max at 250 µA, so the device will turn on with a 3.3V gate signal. However, the Rds(on) is specified at 4.5V Vgs; at 3.3V the on-resistance will be higher than the 27 mOhm max listed. For full rated performance, a 5V gate drive is recommended."},{"question":"What is the replacement or equivalent for CSD85301Q2?","answer":"No official pin-compatible replacement or second-source alternate is listed on the record for this part. The CSD85301Q2 is a unique dual-NexFET in the 6-WSON 2x2 mm footprint. For a dual-sourcing strategy, a parametric search for dual N-channel MOSFETs in the same package with similar Rds(on) and Vdss ratings would be needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CSD85301Q2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CSD85301Q2 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}}