{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NH470J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NH470J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NH470J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NH470J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 47 µH, ±5%, 210 mA, 1.044 Ohm DCR max, 1812 (4532 Metric), AEC-Q200.","salesMarkdown":"## 47 µH wirewound for power and signal filtering The LQH43NH470J03L is a 47 µH unshielded wirewound inductor from Murata's LQH43 series, built on a ferrite drum core. It carries a 210 mA continuous current rating with a maximum DC resistance of 1.044 Ohm — the DCR figure sets the I²R loss floor for a given load, so at 210 mA the self-heating is roughly 46 mW, negligible in most surface-mount layouts. The 1812 (4532 Metric) footprint is a common power-inductor size, making it a drop-in candidate for many existing DC-DC converter or EMI filter BOM positions. ## Self-resonant frequency and Q factor — bandwidth limits The self-resonant frequency (SRF) is 10 MHz, which caps the usable frequency range — above SRF the inductor behaves capacitively, so this part is suited for switching regulators switching below 2–3 MHz or for filtering in the low-MHz band. The Q factor is 35 at 1 MHz, a moderate figure for a wirewound ferrite-core inductor; it reflects the core loss and winding resistance at that frequency. Inductance is tested at 1 MHz, and the ±5% tolerance is tight enough for resonant tank circuits or precision filtering where the inductance value must stay within a narrow window across temperature and bias current.","metaTitle":"Murata LQH43NH470J03L 47 µH Inductor, 210 mA, AEC-Q200","metaDescription":"Murata LQH43NH470J03L wirewound ferrite drum core inductor, 47 µH ±5%, 210 mA rated current, 1.044 Ohm DCR max. AEC-Q200 qualified.","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":"AEC-Q200","Features":"-","Q @ Freq":"35 @ 1MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"47 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":"LQH43NH","DC Resistance (DCR)":"1.044Ohm Max","Current Rating (Amps)":"210 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1812","Frequency - Self Resonant":"10MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b8fe98626664ecf0068858b1162f6220.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative in the LQH43 family?","answer":"The LQH43 series includes multiple inductance values in the same 1812 footprint. A direct alternative would be another LQH43NH part with the same package and tolerance, but with a different inductance value — for example the LQH43NH101J03L (100 µH) or LQH43NH220J03L (22 µH). No exact inductance substitute exists within the same series; the 47 µH value is unique to this order code."},{"question":"How is the LQH43NH470J03L quoted for volume purchases?","answer":"Pricing and lead time are confirmed at RFQ time — no stock-holding or price figure is published here, but the active lifecycle means it is a standard catalog item with predictable supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NH470J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NH470J03L 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}}