{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH3NPN4R7MJRL","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH3NPN4R7MJRL","canonicalUrl":"https://icboms.com/murata-electronics/LQH3NPN4R7MJRL","factsUrl":"https://icboms.com/api/mcp/products/LQH3NPN4R7MJRL","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH3 series, Drum Core Wirewound Inductor, Shielded, 4.7 µH, ±20%, 710 mA, 144mOhm Max, SMD, 1212 (3030 Metric).","salesMarkdown":"## 4.7 µH shielded wirewound for DC-DC filtering The Murata LQH3NPN4R7MJRL is a 4.7 µH shielded wirewound inductor in a 1212 (3030 Metric) SMD package. It is part of the LQH3 series and uses a ferrite drum core with a wirewound construction, giving it a self-resonant frequency of 40 MHz. Rated at 710 mA with a saturation current of 1.18 A, this part handles the ripple current in a buck converter's output filter without saturating the core, as long as the peak current stays under the Isat limit. ## DCR and current: the thermal budget trade-off The 144 mOhm maximum DC resistance sets the I²R conduction loss — at 710 mA, the self-heating is roughly 73 mW, which is manageable in the 1212 footprint but should be checked against the board's copper pour area for thermal relief. Shielding with a ferrite core keeps the magnetic field contained, so this inductor can sit next to sensitive analog traces or other magnetics without coupling noise into adjacent circuits. The 40 MHz self-resonant frequency is well above the switching frequency of most DC-DC converters (typically 500 kHz to 2 MHz), so the inductor behaves as a pure inductance in that band — no capacitive crossover until well above the operating range. ## Board-fit and temperature envelope Surface-mount reflow follows standard lead-free profiles. Operating from -40°C to 105°C, the ferrite core material maintains its permeability across the full automotive interior temperature range, though the DCR will increase with temperature per the copper wire's positive temperature coefficient.","metaTitle":"Murata LQH3NPN4R7MJRL Shielded Wirewound Inductor, 4.7 µH","metaDescription":"Murata LQH3NPN4R7MJRL drum core wirewound inductor, 4.7 µH ±20%, 710 mA rated, 1.18 A saturation, 144 mOhm DCR, shielded ferrite core, 1212 SMD package.","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":"LQH3","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Q @ Freq":"-","Shielding":"Shielded","Tolerance":"±20%","Inductance":"4.7 µH","Mounting Type":"Surface Mount","Package / Case":"1212 (3030 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.118\\\" L x 0.118\\\" W (3.00mm x 3.00mm)","Base Product Number":"LQH3NPN","DC Resistance (DCR)":"144mOhm Max","Current Rating (Amps)":"710 mA","Height - Seated (Max)":"0.047\\\" (1.20mm)","Operating Temperature":"-40°C~105°C","Supplier Device Package":"1212 (3030 Metric)","Frequency - Self Resonant":"40MHz","Current - Saturation (Isat)":"1.18A","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/208315cfdd2345a13b2ab69c20848213.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the saturation current vs rated current for LQH3NPN4R7MJRL?","answer":"The rated current is 710 mA, while the saturation current (Isat) is 1.18 A. The inductor can handle peak currents up to Isat before the inductance drops by 10% typically — design the peak ripple current below this threshold to maintain the 4.7 µH value."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH3NPN4R7MJRL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH3NPN4R7MJRL 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}}