{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH3NPN181MGRL","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH3NPN181MGRL","canonicalUrl":"https://icboms.com/murata-electronics/LQH3NPN181MGRL","factsUrl":"https://icboms.com/api/mcp/products/LQH3NPN181MGRL","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH3 series, Drum Core Wirewound Inductor, Shielded, 180 µH, ±20%, 160 mA, 7.68 Ohm DCR, Surface Mount, 1212 (3030 Metric).","salesMarkdown":"## 180 µH shielded wirewound — what the ratings mean for the BOM The LQH3NPN181MGRL is a 180 µH shielded wirewound inductor from Murata's LQH3 series, built on a ferrite core in a 1212 (3030 Metric) surface-mount package. The 160 mA current rating and 130 mA saturation current define the usable DC bias range: the inductance holds within tolerance up to 130 mA, and the part can carry 160 mA continuous before the DCR self-heating becomes the limit. With a 7.68 Ohm max DCR, the resistive loss at 160 mA is about 0.2 W — within the thermal budget of the 1.0 mm seated height in still air. The self-resonant frequency of 2 MHz sets the upper bound for effective filtering — above that frequency the inductor behaves capacitively. For a DC-DC converter switching at 500 kHz to 1 MHz, this part works as a bulk output filter; for a 2 MHz+ switcher, the SRF is too close and the impedance roll-off will degrade ripple attenuation. ## Last Buy — what it means for procurement Murata has placed the LQH3NPN181MGRL in Last Buy status. This means the manufacturer has announced the end of production and is accepting final orders within a defined window. Once that window closes, the part will be unavailable through authorized channels. For a BOM that already uses this inductor, the decision is whether to secure a last-time-buy quantity or to qualify a replacement before the supply dries up. No official successor or pin-compatible alternative is recorded in the Murata LQH3 series for this exact inductance and current rating. A replacement search will need to compare the 180 µH, 160 mA, 7.68 Ohm DCR, and 1212 footprint against other shielded ferrite-core inductors in the same package size. ## Where this inductor fits in a power rail The shielded construction reduces magnetic flux leakage into adjacent traces and components — important when the inductor sits near sensitive analog or RF circuitry on the same board. The ferrite core keeps core losses low at switching frequencies below 2 MHz, making it suitable for low-power DC-DC converters, EMI input filters, and signal-line filtering in portable or space-constrained designs. The 1212 footprint (3.00 mm × 3.00 mm) with a 1.00 mm seated height fits standard pick-and-place assembly and low-profile board stacks.","metaTitle":"Murata LQH3NPN181MGRL 180 µH Shielded Inductor, 160 mA","metaDescription":"Murata LQH3NPN181MGRL 180 µH shielded wirewound inductor, 160 mA, 7.68 Ohm DCR. Last Buy status — sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Inductors & Chokes"],"specifications":{"Mfr":"Murata Electronics","Type":"Drum Core, Wirewound","Series":"LQH3","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"-","Shielding":"Shielded","Tolerance":"±20%","Inductance":"180 µH","Mounting Type":"Surface Mount","Package / Case":"1212 (3030 Metric)","Product Status":"Last Time Buy","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)":"7.68Ohm Max","Current Rating (Amps)":"160 mA","Height - Seated (Max)":"0.039\\\" (1.00mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1212 (3030 Metric)","Frequency - Self Resonant":"2MHz","Current - Saturation (Isat)":"130mA","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ca3e274b3c8e9e5a1e2a0e200f8f6ddd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LQH3NPN181MGRL and how do I get a price?","answer":"The LQH3NPN181MGRL is in Last Buy status and is sourced through independent distribution."},{"question":"What is LQH3NPN181MGRL's listed type and series?","answer":"The type is Drum Core, Wirewound and the series is LQH3. It is a shielded ferrite-core inductor in a 1212 (3030 Metric) surface-mount package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH3NPN181MGRL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH3NPN181MGRL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}