{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DFE322512F-R68M=P2","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"DFE322512F-R68MP2","canonicalUrl":"https://icboms.com/murata-electronics/DFE322512F-R68MP2","factsUrl":"https://icboms.com/api/mcp/products/DFE322512F-R68M%3DP2","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics DFE18SBN series wirewound inductor, shielded metal core, 680 nH ±20%, 4.4 A rated, 6.1 A saturation, 26 mOhm DCR, 1210 (3225 metric) package, -40°C to +125°C.","salesMarkdown":"## 680 nH, 4.4 A — DC-DC input rail inductor for point-of-load converters The Murata DFE322512F-R68M=P2 is a 680 nH shielded wirewound inductor from the DFE18SBN series, built with a metal-alloy core. It is rated for 4.4 A continuous current with a saturation floor of 6.1 A, meaning the inductance holds within ±20% up to that peak before rolling off — a common spec for the input side of a buck converter where the inductor sees the full switch current. The 26 mOhm maximum DCR translates to about 0.5 W of I²R loss at the rated 4.4 A. In a 1210 (3225 metric) package with a 1.2 mm seated height, that heat has to exit through the PCB copper — a 2-ounce pour under the part keeps the temperature rise under control in a 40°C ambient. ## Shielded metal core — saturation behaviour and EMI profile Metal-alloy cores saturate more softly than ferrite — the inductance rolls off gradually past Isat rather than dropping off a cliff. For a 6.1 A saturation current, a transient load step that peaks at 5 A still leaves useful inductance, unlike a ferrite core that would hit zero inductance at the same point. The shield also cuts radiated EMI, which matters when the inductor sits near a sensitive RF front-end or an ADC input. Above that, the DCR rises with temperature, and the I²R loss compounds — a thermal camera on the prototype board catches whether the part needs airflow or a larger pad.","metaTitle":"Murata DFE322512F-R68M=P2 680nH Shielded Inductor, 4.4A","metaDescription":"Murata DFE322512F-R68M=P2 wirewound inductor, 680 nH ±20%, shielded metal core, 4.4 A rated, 6.1 A saturation, 26 mOhm DCR, 1210 package, -40°C to +125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Murata Electronics","Type":"Wirewound","Series":"DFE18SBN","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Features":"-","Q @ Freq":"-","Shielding":"Shielded","Tolerance":"±20%","Inductance":"680 nH","Mounting Type":"Surface Mount","Package / Case":"1210 (3225 Metric)","Product Status":"Active","Material - Core":"Metal","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Base Product Number":"DFE322512F","DC Resistance (DCR)":"26mOhm Max","Current Rating (Amps)":"4.4 A","Height - Seated (Max)":"0.047\\\" (1.20mm)","Operating Temperature":"-40°C~125°C","Supplier Device Package":"1210","Frequency - Self Resonant":"-","Current - Saturation (Isat)":"6.1A","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d7b56d80319ca175368b796c3c339c0c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the saturation current of this inductor and why does it matter?","answer":"The saturation current (Isat) is 6.1 A. This is the current at which the inductance drops by 20% from its initial value. For a buck converter that peaks at 5 A during a load transient, the inductor still holds most of its 680 nH — a ferrite core of the same rating would collapse harder past Isat."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/DFE322512F-R68MP2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/DFE322512F-R68MP2 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}}