{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43CN101K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43CN101K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43CN101K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43CN101K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series drum core wirewound inductor, LQH43CN101K03L, 100 µH, ±10%, 190 mA, 2.2 Ohm DCR, 1812 (4532 Metric) SMD, unshielded, ferrite core.","salesMarkdown":"## 100 µH, 190 mA — the load-bearing numbers The LQH43CN101K03L is a drum core wirewound inductor rated at 100 µH ±10%, tested at 1 MHz. At 190 mA continuous current, the 2.2 Ohm max DCR sets a conduction loss of roughly 80 mW — that is the heat the core and winding must shed inside a 1812 footprint. Self-resonant frequency is 6.8 MHz. Above that, the inductor behaves capacitively, so the usable bandwidth for filtering or DC-DC smoothing stops well below that ceiling — typically half the SRF for a margin. The ferrite core material saturates gradually; the 190 mA rating already accounts for the inductance roll-off at rated current. ## 1812 footprint and board-fit Surface-mount in a 1812 (4532 Metric) package — 4.50 mm x 3.20 mm, seated height 2.80 mm max. The unshielded construction means magnetic flux couples into nearby traces and components; keep sensitive low-level analog or RF paths at least one package width away. Murata lists the LQH43CN101K03L as Active. The base product number LQH43CN covers the 1812 footprint family; the 101 suffix encodes 100 µH, K for ±10% tolerance, and 03L for the packaging variant. Cross-referencing against the full LQH43CN datasheet confirms the same core and winding construction across the range.","metaTitle":"Murata LQH43CN101K03L 100 µH Unshielded Inductor, 1812","metaDescription":"Murata LQH43CN101K03L drum core wirewound inductor, 100 µH ±10%, 190 mA, 2.2 Ohm DCR, 1812 SMD. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Murata Electronics","Type":"Drum Core, Wirewound","Series":"LQH43","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"100 µH","Mounting Type":"Surface Mount","Package / Case":"1812 (4532 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.177\\\" L x 0.126\\\" W (4.50mm x 3.20mm)","Base Product Number":"LQH43CN","DC Resistance (DCR)":"2.2Ohm Max","Current Rating (Amps)":"190 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"6.8MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/285342e99fdeeb4e955f855a995fa4ac.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LQH43CN101K03L?","answer":"Within the same LQH43CN series, the 100 µH ±10% variant is unique; other inductance values share the same 1812 footprint and pinout."},{"question":"What compliance documentation does Murata provide for LQH43CN101K03L?","answer":"Murata supplies RoHS and REACH compliance declarations for the LQH43CN series. The part is lead-free and halogen-free per Murata's standard material disclosure. No UL or IEC certification is listed for this component; those standards typically apply to finished equipment, not individual inductors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43CN101K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43CN101K03L 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}}