{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NN151K03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NN151K03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NN151K03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NN151K03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound Inductor, 150 µH, ±10%, 130 mA, 3.7 Ohm DCR, Unshielded, 1812 (4532 Metric), Surface Mount.","salesMarkdown":"## 150 µH in a 1812 footprint — what the ratings mean for your BOM The LQH43NN151K03L is a 150 µH unshielded wirewound inductor from Murata's LQH43 series, built on a ferrite drum core. The 130 mA current rating is the continuous DC limit at which the self-heating from the 3.7 Ohm DCR stays within the part's thermal budget — exceeding it risks saturating the core or cooking the winding insulation. At 130 mA and 3.7 Ohm, the I²R loss is about 62 mW — modest for a 1812 part, but in a dense board with limited airflow, that heat adds up. The unshielded construction means the magnetic field radiates; keep sensitive traces or other inductors a few body widths away to avoid coupling. ## Board-fit: footprint, temperature, and frequency Standard 1812 (4532 metric) land pattern — 4.50 mm × 3.20 mm body, 2.80 mm seated height. Self-resonant frequency is 5.5 MHz; the inductance is tested at 1 MHz. Below resonance the part behaves as an inductor; above it the impedance turns capacitive. For a 150 µH part, this SRF is typical and means it suits low-frequency filtering and DC-DC input/output ripple up to a few MHz. Q factor is 40 at 796 kHz — a moderate Q that gives reasonable selectivity for tuned circuits but not the sharp notch you would get from a high-Q air-core coil. The ±10% tolerance is standard for power-grade inductors; if your circuit needs tighter inductance matching, this is not the part. ## Sourcing and lifecycle posture This is a standard catalog inductor, not a custom or long-lead item. The base product number LQH43NN covers a family of values in the same 1812 footprint — if 150 µH is not the exact value your BOM calls for, a sibling in the same series shares the same land pattern and current rating envelope.","metaTitle":"Murata LQH43NN151K03L 150 µH Unshielded Inductor, 130 mA","metaDescription":"Active 150 µH drum core wirewound inductor in 1812 footprint. 130 mA rated current, 3.7 Ohm DCR. Surface mount, -40 to +105°C. Available 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":"40 @ 796kHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"150 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":"LQH43NN","DC Resistance (DCR)":"3.7Ohm Max","Current Rating (Amps)":"130 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C~105°C","Supplier Device Package":"1812 (4532 Metric)","Frequency - Self Resonant":"5.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3158","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0d6b1d39c76e30b3c05600906460c39.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LQH43NN151K03L?","answer":"Any other value in the LQH43NN family shares the same 1812 footprint and pinout — the land pattern is identical. For a different inductance at the same current rating, a sibling in the series is a direct board-swap candidate."},{"question":"What compliance documentation does Murata provide for LQH43NN151K03L?","answer":"RoHS compliance is standard for Murata's LQH43 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NN151K03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NN151K03L 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}}