{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32MN3R3K23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32MN3R3K23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32MN3R3K23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32MN3R3K23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series, Drum Core Wirewound Inductor, LQH32MN3R3K23L, 3.3 µH, ±10%, 300 mA, 1 Ohm DCR, Unshielded, 1210 (3225 Metric) package.","salesMarkdown":"## What the 3.3 µH rating means on your board The LQH32MN3R3K23L is a drum-core wirewound inductor from Murata's LQH32 series, built on a ferrite core and unshielded — so the magnetic field extends beyond the part body and couples into adjacent traces or components if they sit too close. Rated 3.3 µH at 1 MHz test frequency with ±10% tolerance, it carries 300 mA DC before the core saturates or the temperature rise exceeds the limit set by the 1 Ohm max DCR. That DCR figure is the one to watch for loss: at 300 mA, the I²R loss is 90 mW, which the 1210 body has to dissipate into the board copper. The self-resonant frequency sits at 38 MHz — above that, the inductor behaves capacitively. For a DC-DC converter switching at 1-2 MHz, the SRF is well clear of the switching harmonics, but at higher frequencies the impedance roll-off starts early. ## Package and rework reality 1210 (3225 metric) footprint, surface-mount, nonstandard case — the pad geometry follows the standard 1210 land pattern, so no special footprint. The unshielded construction means the hot-air rework profile is straightforward: no magnetic shielding to trap heat, and the ferrite core absorbs moisture less aggressively than a polymer core, so a standard 125°C 24-hour bake before reflow is sufficient if the tape has been exposed. The ferrite core's permeability drifts with temperature, but within this band the inductance shift stays inside the ±10% tolerance for most filter and decoupling applications. ## Sourcing and lifecycle posture Listed as Active in Murata's product status — this is a current-production part, not a phase-out or NRND line. The base product number LQH32MN covers the full inductance range in this drum-core family; the 3R3 suffix identifies the 3.3 µH variant.","metaTitle":"Murata LQH32MN3R3K23L Drum Core Inductor, 3.3 µH, 300 mA","metaDescription":"Active Murata LQH32MN3R3K23L wirewound drum core inductor, 3.3 µH ±10%, 300 mA, 1 Ω DCR, unshielded, 1210 package. 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":"LQH32","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Q @ Freq":"20 @ 1MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"3.3 µH","Mounting Type":"Surface Mount","Package / Case":"Nonstandard","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Base Product Number":"LQH32MN","DC Resistance (DCR)":"1Ohm Max","Current Rating (Amps)":"300 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1210 (3225 Metric)","Frequency - Self Resonant":"38MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cfd82089124c69e5e21a12ea773111de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the LQH32MN3R3K23L or check availability?","answer":"This is an active Murata part, sourced to order against your BOM quantity."},{"question":"Is the LQH32MN3R3K23L shielded or unshielded?","answer":"Unshielded. The drum-core construction leaves the winding exposed on the sides, so the magnetic field radiates into the surrounding board area. Keep sensitive traces or low-impedance loops at least one part-width away to avoid coupling."},{"question":"What is the DC resistance and why does it matter?","answer":"1 Ohm maximum DCR. At the rated 300 mA, the resistive loss is 90 mW — this heat must be conducted into the PCB copper. The 1210 body has no dedicated thermal pad, so the solder pads and trace width are the only thermal path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32MN3R3K23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32MN3R3K23L 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}}