{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STD2NK90Z-1","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STD2NK90Z-1","canonicalUrl":"https://icboms.com/stmicroelectronics/STD2NK90Z-1","factsUrl":"https://icboms.com/api/mcp/products/STD2NK90Z-1","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH™ series, STD2NK90Z-1, N-Channel MOSFET, 900 V Vdss, 2.1 A continuous drain, 6.5 Ohm Rds(on) at 10 V, 27 nC gate charge, Through Hole I-PAK package, -55 to 150 °C.","salesMarkdown":"## 900 V N-channel in an I-PAK — flyback and auxiliary supply workhorse The STD2NK90Z-1: It comes in a through-hole I-PAK package with short leads, intended for high-voltage DC-DC converters, flyback topologies, and auxiliary power supplies where board space is tight but a through-hole joint is preferred over a surface-mount tab. ## On-resistance and gate charge — sizing the driver and the heatsink The 6.5 Ohm Rds(on) at 1.05 A and 10 V sets the conduction loss floor. Total gate charge is 27 nC at 10 V, and input capacitance (Ciss) is 485 pF at 25 V drain-source. That 27 nC gate charge is moderate for a 900 V device — a small-signal gate driver or a PWM controller's totem-pole output can switch it at moderate frequencies without excessive cross-conduction loss. The 10 V drive voltage is required to achieve the rated Rds(on); driving with 5 V logic will leave the device partially enhanced and running hot. ## Active production, through-hole package — BOM-fit for new builds The I-PAK through-hole package is a standard leaded format, compatible with wave-solder and hand-assembly processes.","metaTitle":"STD2NK90Z-1 MOSFET, N-Ch 900V 2.1A, SuperMESH™, I-PAK","metaDescription":"STD2NK90Z-1 N-channel 900V 2.1A MOSFET from STMicroelectronics SuperMESH™ series. 6.5 Ohm Rds(on) at 10V. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"SuperMESH™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"SuperMESH™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±30V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Through Hole","Package / Case":"TO-251-3 Short Leads, IPak, TO-251AA","Product Status":"Active","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4.5V @ 50µA","Base Product Number":"STD2","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"6.5Ohm @ 1.05A, 10V","Power Dissipation (Max)":"70W (Tc)","Supplier Device Package":"I-PAK","Gate Charge (Qg) (Max) @ Vgs":"27 nC @ 10 V","Drain to Source Voltage (Vdss)":"900 V","Input Capacitance (Ciss) (Max) @ Vds":"485 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"2.1A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8900","priceTiers":[{"qty":1,"price":"$1.89000","currency":"USD"},{"qty":10,"price":"$1.57200","currency":"USD"},{"qty":100,"price":"$1.25120","currency":"USD"},{"qty":500,"price":"$1.05872","currency":"USD"},{"qty":1000,"price":"$0.89831","currency":"USD"},{"qty":2000,"price":"$0.85340","currency":"USD"},{"qty":5000,"price":"$0.82132","currency":"USD"},{"qty":10000,"price":"$0.79413","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/75e8d8285c5fb69a0a8330f34b46a90b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STD2NK90Z-1/alternatives.json"},"ai":{"faq":[{"question":"Is STD2NK90Z-1 suitable for a 900 V flyback converter?","answer":"Yes, the 900 V Vdss rating provides adequate margin for a 900 V flyback primary-side switch, accounting for leakage-inductance spikes. The 2.1 A continuous drain current and 6.5 Ohm Rds(on) suit auxiliary and low-power flyback designs up to roughly 30-50 W, depending on thermal management."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STD2NK90Z-1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STD2NK90Z-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}