{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32NH4R7J23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32NH4R7J23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32NH4R7J23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32NH4R7J23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series drum core wirewound inductor, LQH32NH4R7J23L, 4.7 µH ±5%, 420 mA rated current, 252 mOhm DCR, AEC-Q200 qualified, 1210 (3225 Metric) package.","salesMarkdown":"## 4.7 µH wirewound inductor for automotive and industrial DC-DC filtering The Murata LQH32NH4R7J23L is a 4.7 µH drum core wirewound inductor in the LQH32 series, rated for 420 mA continuous current with a maximum DC resistance of 252 mOhm. The 1210 (3225 Metric) footprint and surface-mount package allow pick-and-place assembly on standard PCB layouts without special handling. ## What the key ratings mean for your power-stage design The 420 mA current rating is the DC bias current at which the inductance typically drops by 10% from the nominal 4.7 µH value — the actual saturation current is higher, but the rated current is the design limit for maintaining inductance within the application's tolerance budget. 252 mOhm maximum DCR at 25 °C produces an I²R loss of roughly 44 mW at full rated current — this self-heating raises the internal temperature above ambient, so the 125 °C operating limit must be derated for the temperature rise from the winding loss. A self-resonant frequency of 55 MHz means the inductor behaves inductively up to that point; above 55 MHz the parasitic capacitance dominates and the component becomes capacitive — this sets the upper frequency limit for the DC-DC converter's switching frequency or the filter's cutoff. The Q factor of 20 at 1 MHz indicates the ratio of inductive reactance to effective resistance at that test frequency — a higher Q means lower energy loss per cycle, which matters for resonant circuits or RF filtering at 1 MHz.","metaTitle":"Murata LQH32NH4R7J23L Inductor, 4.7 µH, 420 mA, AEC-Q200","metaDescription":"Murata LQH32NH4R7J23L drum core wirewound inductor, 4.7 µH ±5%, 420 mA rated current, 252 mOhm DCR, AEC-Q200 qualified. 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":"AEC-Q200","Features":"-","Q @ Freq":"20 @ 1MHz","Shielding":"Unshielded","Tolerance":"±5%","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":"LQH32NH","DC Resistance (DCR)":"252mOhm Max","Current Rating (Amps)":"420 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1210 (3225 Metric)","Frequency - Self Resonant":"55MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/57ddb57aecf586c7dc125b88e96a3c0d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the inductance and current rating of LQH32NH4R7J23L?","answer":"The inductor is rated at 4.7 µH ±5% with a continuous current rating of 420 mA and a maximum DC resistance of 252 mOhm."},{"question":"What automotive qualification does LQH32NH4R7J23L carry?","answer":"The part is AEC-Q200 qualified, which certifies it for automotive-grade stress testing including temperature cycling, moisture resistance, and mechanical shock up to 125 °C operating temperature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32NH4R7J23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32NH4R7J23L 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}}