{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LPS4018-682MRC","brand":"Coilcraft","brandSlug":"coilcraft","productSlug":"LPS4018-682MRC","canonicalUrl":"https://icboms.com/coilcraft/LPS4018-682MRC","factsUrl":"https://icboms.com/api/mcp/products/LPS4018-682MRC","rawCanonicalId":null},"summary":{"shortDescription":"Coilcraft LPS4018 series, shielded drum-core power inductor, LPS4018-682MRC, 6.8 µH ±20%, 1 A, 150 mOhm DCR, AEC-Q200, surface mount, nonstandard package.","salesMarkdown":"## 6.8 µH shielded inductor with AEC-Q200 grade The Coilcraft LPS4018-682MRC is a 6.8 µH shielded drum-core power inductor in the LPS4018 series, rated for 1 A continuous current with a saturation current of 1.2 A. The ±20% tolerance covers the full operating range including DC bias effects — a common tolerance for power inductors where the core permeability shifts with current. AEC-Q200 qualification means this inductor passed the automotive-grade stress tests: thermal shock, humidity bias, mechanical shock, and vibration per the passive-component qualification standard. ## DC resistance and self-resonant frequency Maximum DCR is 150 mOhm — at 1 A the I²R loss is 150 mW, which the 1.8 mm seated height package dissipates into the PCB copper plane. The self-resonant frequency of 50 MHz is well above the switching frequencies of typical buck converters (500 kHz to 2 MHz), so the inductor behaves as a pure inductance in the passband. Shielded construction (ferrite core with magnetic shield) reduces radiated EMI into adjacent traces and components — useful when the inductor sits near a sensitive analog front-end or RF section on the same board.","metaTitle":"Coilcraft LPS4018-682MRC 6.8 µH Shielded Power Inductor, 1 A","metaDescription":"Coilcraft LPS4018-682MRC 6.8 µH shielded drum-core inductor, 1 A rated, 150 mOhm DCR, AEC-Q200 qualified, -40°C to 125°C. Active production. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Coilcraft","Type":"Drum Core","Series":"LPS4018","Package":"Strip","Ratings":"AEC-Q200","Features":"-","Q @ Freq":"-","Shielding":"Shielded","Tolerance":"±20%","Inductance":"6.8 µH","Mounting Type":"Surface Mount","Package / Case":"Nonstandard","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.154\\\" L x 0.154\\\" W (3.90mm x 3.90mm)","DC Resistance (DCR)":"150mOhm Max","Current Rating (Amps)":"1 A","Height - Seated (Max)":"0.071\\\" (1.80mm)","Operating Temperature":"-40°C~125°C","Supplier Device Package":"-","Frequency - Self Resonant":"50MHz","Current - Saturation (Isat)":"1.2A","Inductance Frequency - Test":"100 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0a1383b82e9440ac5710704b6c85e4ee.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the saturation current vs rated current for LPS4018-682MRC?","answer":"The rated current is 1 A (continuous), while the saturation current (Isat) is 1.2 A. The 200 mA margin means the inductance drops by roughly 20% at 1.2 A — typical for ferrite-core inductors. For designs where the peak current exceeds 1 A, the 1.2 A saturation headroom provides a safety buffer before the inductance collapses."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/coilcraft/LPS4018-682MRC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/coilcraft/LPS4018-682MRC 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}}