{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32CN4R7M33L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32CN4R7M33L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32CN4R7M33L","factsUrl":"https://icboms.com/api/mcp/products/LQH32CN4R7M33L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series, Drum Core Wirewound Inductor, 4.7 µH, ±20%, 650 mA, 195 mOhm DCR, 43 MHz SRF, 1210 (3225 Metric), Unshielded, LQH32CN4R7M33L.","salesMarkdown":"## 4.7 µH drum-core selection for DC-DC output filtering The LQH32CN4R7M33L is a Murata LQH32-series drum-core wirewound inductor rated at 4.7 µH with a ±20% tolerance and a 650 mA DC current rating. Unshielded construction means the magnetic field radiates; keep sensitive traces and low-impedance loops at least one part width away to avoid coupling into the signal path. ## Frequency limit and bias current Self-resonant frequency of 43 MHz marks the upper bound where the inductor's impedance peaks before the parasitic capacitance dominates — stay below 10–15 MHz for a predictable inductive response in a buck converter output filter. Inductance is tested at 1 MHz; the ferrite core material saturates gradually, so the 650 mA rating is the DC bias current at which inductance drops by a defined percentage — derate for ripple current in the application.","metaTitle":"Murata LQH32CN4R7M33L 4.7 µH Drum Core Inductor, 650 mA","metaDescription":"Murata LQH32CN4R7M33L drum core wirewound inductor, 4.7 µH ±20%, 650 mA rated current, 195 mOhm DCR, 43 MHz SRF. Active production.","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":"-","Shielding":"Unshielded","Tolerance":"±20%","Inductance":"4.7 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":"LQH32CN","DC Resistance (DCR)":"195mOhm Max","Current Rating (Amps)":"650 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1210 (3225 Metric)","Frequency - Self Resonant":"43MHz","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/032db72f674b67668bffce09c5b34444.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the self-resonant frequency of LQH32CN4R7M33L?","answer":"The self-resonant frequency is 43 MHz. Above this frequency the inductor behaves capacitively, so it is best used well below that limit for power filtering."},{"question":"Is LQH32CN4R7M33L shielded or unshielded?","answer":"It is unshielded. The magnetic field radiates from the drum core, so PCB layout should keep sensitive traces and other inductors at a distance to avoid coupling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32CN4R7M33L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32CN4R7M33L 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}}