{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LPS4018-104MRC","brand":"Coilcraft","brandSlug":"coilcraft","productSlug":"LPS4018-104MRC","canonicalUrl":"https://icboms.com/coilcraft/LPS4018-104MRC","factsUrl":"https://icboms.com/api/mcp/products/LPS4018-104MRC","rawCanonicalId":null},"summary":{"shortDescription":"Coilcraft LPS4018 series, Drum Core shielded power inductor, LPS4018-104MRC, 100 µH, ±20%, 350 mA, 1.4 Ohm DCR, AEC-Q200, Surface Mount, -40°C~125°C.","salesMarkdown":"## 100 µH shielded power inductor for automotive and industrial DC-DC stages The Coilcraft LPS4018-104MRC is a 100 µH shielded drum core inductor in the LPS4018 series, rated for 350 mA continuous current with a saturation current floor of 340 mA. The 1.4 Ohm maximum DCR sets the DC conduction loss — at full rated current the I²R loss is roughly 0.17 W, which the 3.9 mm × 3.9 mm × 1.8 mm package must dissipate into the board copper. ## Shielded construction and self-resonant frequency The ferrite-core shielded construction contains the magnetic flux within the inductor body, reducing radiated EMI that would otherwise couple into adjacent traces or sensitive analog stages on the same board. This matters in a compact 3.9 mm footprint where the inductor sits close to the switching node of a buck converter. Self-resonant frequency is 10 MHz — above that point the inductor behaves capacitively and loses its inductive impedance. For a typical 500 kHz to 2 MHz switching regulator, the 10 MHz SRF provides adequate margin; the inductance remains flat across the switching band. Inductance is tested at 100 kHz, the standard frequency for power inductor characterization. The ±20% tolerance is typical for ferrite-core power inductors; the actual value at the operating current will shift downward as the core approaches saturation, so the 340 mA Isat is the hard ceiling for the DC bias. ## Active production and sourcing posture The part is not single-sourced — Coilcraft maintains multiple manufacturing sites for the LPS4018 series.","metaTitle":"Coilcraft LPS4018-104MRC 100µH Shielded Power Inductor","metaDescription":"Coilcraft LPS4018-104MRC, 100µH shielded drum core inductor, 350mA rated, 1.4Ω DCR, AEC-Q200 qualified, -40°C~125°C. Active production, available to order.","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":"100 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)":"1.4Ohm Max","Current Rating (Amps)":"350 mA","Height - Seated (Max)":"0.071\\\" (1.80mm)","Operating Temperature":"-40°C~125°C","Supplier Device Package":"-","Frequency - Self Resonant":"10MHz","Current - Saturation (Isat)":"340mA","Inductance Frequency - Test":"100 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0a1383b82e9440ac5710704b6c85e4ee.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LPS4018-104MRC/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/coilcraft/LPS4018-104MRC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/coilcraft/LPS4018-104MRC 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}}