{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LPS4018-683MRC","brand":"Coilcraft","brandSlug":"coilcraft","productSlug":"LPS4018-683MRC","canonicalUrl":"https://icboms.com/coilcraft/LPS4018-683MRC","factsUrl":"https://icboms.com/api/mcp/products/LPS4018-683MRC","rawCanonicalId":null},"summary":{"shortDescription":"Coilcraft LPS4018 series, shielded drum core power inductor, LPS4018-683MRC, 68 µH, ±20%, 400 mA, 410 mA saturation, 950 mOhm DCR, AEC-Q200, -40°C to 125°C, 3.90 mm square, 1.80 mm seated height.","salesMarkdown":"## AEC-Q200 — what the grade certifies for the BOM The LPS4018-683MRC: Rated AEC-Q200, the passive-component automotive stress qualification. This covers 1000-hour accelerated life at rated current and 125°C, thermal shock between -40°C and 125°C, mechanical shock and vibration per the AEC-Q200 test plan. The inductor is qualified for under-hood and cabin deployment without additional derating beyond the datasheet limits. ## 68 µH at 400 mA — the saturation margin for a DC-DC choke Inductance is 68 µH at 100 kHz test frequency, ±20% tolerance. Rated current is 400 mA; saturation current is 410 mA. The 10 mA gap between rated and saturation means the inductor operates below the knee of the BH curve at full rated load — inductance holds within 10% of nominal up to the saturation point. For a buck converter switching at 500 kHz to 2 MHz, the 13 MHz self-resonant frequency leaves margin above the switching harmonics before the impedance turns capacitive. DC resistance is 950 mOhm max. At 400 mA the conduction loss is I²R = 152 mW — within the thermal budget of the 3.90 mm x 3.90 mm footprint without forced airflow. The shielded ferrite core contains the magnetic field, reducing EMI coupling to adjacent traces or a nearby RF stage on the same board. ## Footprint and stack-up — 3.90 mm square, 1.80 mm tall Nonstandard surface-mount package, 3.90 mm x 3.90 mm land pattern, 1.80 mm seated height. The low profile suits mezzanine card or module assemblies where the board-to-board clearance is under 2.5 mm. The ferrite core and shielded construction mean no keep-out zone for adjacent copper planes — the inductor can sit under a shield can or near a board edge without coupling into the chassis.","metaTitle":"Coilcraft LPS4018-683MRC 68 µH Shielded Power Inductor","metaDescription":"Coilcraft LPS4018-683MRC, 68 µH shielded drum core inductor, 400 mA rated, 410 mA saturation, AEC-Q200 qualified, -40°C to 125°C.","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":"68 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)":"950mOhm Max","Current Rating (Amps)":"400 mA","Height - Seated (Max)":"0.071\\\" (1.80mm)","Operating Temperature":"-40°C~125°C","Supplier Device Package":"-","Frequency - Self Resonant":"13MHz","Current - Saturation (Isat)":"410mA","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":"Where can I buy LPS4018-683MRC and get a price?","answer":"Sourced through independent distribution channels. Submit an RFQ for a firm price and lead-time commitment."},{"question":"What compliance documentation does Coilcraft provide for LPS4018-683MRC?","answer":"The part carries AEC-Q200 qualification documentation. Coilcraft typically provides RoHS and REACH compliance certificates on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/coilcraft/LPS4018-683MRC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/coilcraft/LPS4018-683MRC 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}}