{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32NZ3R9K23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32NZ3R9K23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32NZ3R9K23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32NZ3R9K23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series, Drum Core Wirewound Inductor, LQH32NZ3R9K23L, 3.9 µH, ±10%, 290 mA, 1.1 Ohm DCR, 1210 (3225 Metric), AEC-Q200.","salesMarkdown":"## 3.9 µH wirewound in a 1210 footprint The Murata LQH32NZ3R9K23L is a drum core, wirewound inductor in the LQH32 series, rated 3.9 µH ±10% at 1 MHz test frequency. Its 290 mA current rating with a 1.1 Ohm max DCR suits low-current DC-DC converter output filtering and signal-line decoupling where the DC bias current stays under a quarter amp. The unshielded construction means the magnetic field radiates — keep sensitive traces or adjacent inductors a board-width away in layout. ## SRF and impedance profile Self-resonant frequency is 35 MHz — above that point the inductor behaves capacitively, so the effective inductance rolls off. For a 3.9 µH part this SRF is typical; the usable band for filtering extends to roughly 10-15 MHz before the Q factor drops significantly. Q factor is 20 at 1 MHz, which is moderate for a ferrite-core wirewound; it indicates the ratio of stored energy to loss at that frequency.","metaTitle":"Murata LQH32NZ3R9K23L 3.9 µH 290 mA Unshielded Inductor","metaDescription":"AEC-Q200 qualified wirewound drum core inductor, 3.9 µH ±10%, 290 mA, 1.1 Ohm DCR, 1210 (3225 Metric) package. Active production, surface mount.","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":"AEC-Q200","Features":"-","Q @ Freq":"20 @ 1MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"3.9 µH","Mounting Type":"Surface Mount","Package / Case":"1210 (3225 Metric)","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":"LQH32NZ","DC Resistance (DCR)":"1.1Ohm Max","Current Rating (Amps)":"290 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C~105°C","Supplier Device Package":"1210","Frequency - Self Resonant":"35MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8227f75002094192208d32d8beb87021.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LQH32NZ3R9K23L's self-resonant frequency and why does it matter?","answer":"The self-resonant frequency is 35 MHz. Above this frequency the inductor becomes capacitive, so the effective inductance drops off. For filtering applications, the useful band extends to roughly 10-15 MHz before the Q factor degrades significantly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32NZ3R9K23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32NZ3R9K23L 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}}