{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH31MN560J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH31MN560J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH31MN560J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH31MN560J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH31 series drum core wirewound inductor, 56 µH, ±5%, 50 mA, unshielded, 1206 (3216 metric) SMD, ferrite core.","salesMarkdown":"## 56 µH wirewound for dc-dc filtering and bias-T circuits The Murata LQH31MN560J03L is a 56 µH drum core wirewound inductor in the LQH31 series, built on a ferrite core with an unshielded construction. It is specified for surface-mount assembly in the 1206 (3216 metric) footprint, making it a direct drop-in for designs already using that standard pad layout. Rated for 50 mA continuous current with a dc resistance of 8.9 Ohm, this part suits low-current filtering, decoupling, and bias-T applications where the dc bias stays well under the current ceiling. The 56 µH value at 1 MHz test frequency places it in the range used for LC filters in audio-band or low-frequency switching converter output stages. ## Self-resonant frequency and usable band The self-resonant frequency of 9 MHz sets the upper boundary where the inductor's impedance peaks before the parasitic capacitance dominates. Below that frequency, the 56 µH value holds within tolerance; above it, the component behaves capacitively and no longer functions as an inductor. For a 1 MHz switching regulator or a filter with a corner frequency well below 9 MHz, this part stays well within its inductive region. Quality factor is specified at 40 measured at 2.5 MHz, indicating moderate energy storage efficiency at that frequency. The Q factor rolls off as frequency moves away from the test point, so for applications requiring tight filtering selectivity, verify the Q at the actual operating frequency against the design target. ## Temperature grade and soldering profile The ferrite core material maintains its magnetic properties across this range, though dc bias saturation current and DCR both drift with temperature — derate the 50 mA current rating above 70 °C ambient per the standard inductor derating curve. The 1206 ceramic body and wirewound construction are compatible with standard reflow soldering profiles used for lead-free assemblies. The unshielded design means the inductor radiates a small magnetic field, so adjacent traces carrying sensitive analog signals should be kept at least one part width away to avoid coupling.","metaTitle":"Murata LQH31MN560J03L 56 µH Inductor, 50 mA, 1206","metaDescription":"Murata LQH31MN560J03L drum core wirewound inductor, 56 µH ±5%, 50 mA rated current, 8.9 Ohm DCR, 1206 SMD. Active production, sourced per RFQ.","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":"LQH31","Package":"Tape & Reel (TR)","Ratings":"-","Q @ Freq":"40 @ 2.5MHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"56 µH","Mounting Type":"Surface Mount","Package / Case":"1206 (3216 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.063\\\" W (3.20mm x 1.60mm)","Base Product Number":"LQH31MN","DC Resistance (DCR)":"8.9Ohm","Current Rating (Amps)":"50 mA","Height - Seated (Max)":"0.079\\\" (2.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1206 (3216 Metric)","Frequency - Self Resonant":"9MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3128","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/23793266b202ae546e5047be20f0e556.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 56 µH inductance value used for in a typical circuit?","answer":"The 56 µH value at 50 mA rating fits low-current dc-dc converter output filters, LC pi-filters for supply rail smoothing, and bias-T networks where the inductor passes dc while blocking RF signals above its self-resonant frequency of 9 MHz."},{"question":"What compliance documentation does Murata provide for LQH31MN560J03L?","answer":"Murata provides RoHS compliance data for the LQH31 series. The part is manufactured under standard quality management systems; specific certificates of compliance or REACH declarations are available on request at the time of order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH31MN560J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH31MN560J03L 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}}