{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32MN391J23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32MN391J23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32MN391J23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32MN391J23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series, Drum Core Wirewound Inductor, LQH32MN391J23L, 390 µH, ±5%, 50 mA, 22 Ohm DCR, 1210 (3225 Metric) SMD.","salesMarkdown":"## 390 µH at 50 mA — what that means on the bench The LQH32MN391J23L is a 390 µH drum-core wirewound inductor from Murata's LQH32 series, rated for 50 mA continuous current with a max DC resistance of 22 Ohm. That DCR is the main loss term — at 50 mA the I²R loss is 55 mW, which is fine for a 1210 package but worth checking if your circuit runs near the current limit continuously. The unshielded construction means the magnetic field extends beyond the part — keep sensitive traces or other magnetics a few millimeters away, especially if you are routing near a wireless front-end or another inductor. ## Q factor and self-resonant frequency — where it works Q is 50 at 796 kHz, which is decent for a 390 µH part in this footprint — the core loss and winding resistance balance out around that frequency. The self-resonant frequency is 5 MHz, so the inductor starts to look capacitive above that; keep your switching or signal frequency well below 5 MHz to stay in the inductive region. If your design sees the upper end of that range, the inductance holds within the ±5% tolerance band. It ships in tape-and-reel or cut-tape options, so it fits both prototyping and volume reflow. The 1210 (3225 metric) footprint is standard — no special pad geometry needed.","metaTitle":"Murata LQH32MN391J23L Inductor, 390 µH, 50 mA, 1210","metaDescription":"Murata LQH32MN391J23L drum core wirewound inductor, 390 µH ±5%, 50 mA, 22 Ohm DCR, 5 MHz SRF, 1210 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":"LQH32","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Q @ Freq":"50 @ 796kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"390 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)":"22Ohm Max","Current Rating (Amps)":"50 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1210 (3225 Metric)","Frequency - Self Resonant":"5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cfd82089124c69e5e21a12ea773111de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current rating and DC resistance of LQH32MN391J23L?","answer":"The inductor is rated for 50 mA continuous current with a maximum DC resistance of 22 Ohm. At full rated current the I²R loss is 55 mW."},{"question":"What package does LQH32MN391J23L come in?","answer":"The footprint is standard for the 1210 size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32MN391J23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32MN391J23L 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}}