{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43MN151J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43MN151J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43MN151J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43MN151J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH43 series, Drum Core Wirewound inductor, 150 µH, ±5%, 130 mA, 3.7 Ohm DCR, 1812 (4532 Metric), Unshielded, Ferrite Core.","salesMarkdown":"## 150 µH, 130 mA — the two numbers that decide the BOM line The LQH43MN151J03L is a Murata drum-core wirewound inductor from the LQH43 series, rated 150 µH at 1 MHz test frequency with a ±5% tolerance — tight enough for LC filter poles where the inductance tolerance sets the corner frequency spread. ## Q factor and self-resonant frequency — filter and resonant circuit fit A Q of 40 at 796 kHz means the inductor's reactance-to-resistance ratio is high enough for bandpass and tank circuits in the low-MHz range — the 5.5 MHz self-resonant frequency is the upper bound where the winding capacitance cancels the inductance, so keep the operating frequency below ~1.8 MHz (roughly one-third of SRF) for the inductor to behave as an inductor. The unshielded construction means the external magnetic field couples into nearby traces — keep sensitive analog or RF routing at least one body width (4.5 mm) away, or budget for a shielded part if the layout is dense. ## 1812 footprint and surface-mount assembly The ferrite core material gives stable inductance over temperature up to 85 °C, but the unshielded drum construction means the inductance saturates gradually — the 130 mA rating is the point where inductance typically drops 10 %, not a hard magnetic saturation cliff.","metaTitle":"Murata LQH43MN151J03L 150 µH Inductor, 130 mA, 1812","metaDescription":"Murata LQH43MN151J03L drum core wirewound inductor, 150 µH ±5%, 130 mA rated current, 3.7 Ohm DCR max, 1812 SMD. Active lifecycle, sourced per RFQ.","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":"±5%","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":"LQH43MN","DC Resistance (DCR)":"3.7Ohm Max","Current Rating (Amps)":"130 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1812","Frequency - Self Resonant":"5.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d1493e4ce66984c31e9b5c6bbb04d9e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LQH43MN151J03L in the LQH43 family?","answer":"The LQH43 series includes multiple inductance values in the same 1812 footprint — for example, a 100 µH variant (LQH43MN101J03L) shares the same package, core material, and current rating class. The deciding factor is the inductance your filter or DC-DC converter needs; the 150 µH value here targets lower-frequency ripple filtering where a higher inductance gives better attenuation at the switching frequency."},{"question":"What compliance documentation does Murata provide for LQH43MN151J03L?","answer":"Murata publishes RoHS and REACH compliance declarations for the LQH43 series. The inductor is free of restricted substances under the EU RoHS directive; the specific compliance certificate and material composition data are available in the product documentation package from Murata."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43MN151J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43MN151J03L 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}}