{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32MN680K23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32MN680K23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32MN680K23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32MN680K23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series, Drum Core Wirewound Inductor, 68 µH, ±10%, 80 mA, 5.5 Ohm DCR, Unshielded, 1210 (3225 Metric) Surface Mount.","salesMarkdown":"## 68 µH at 80 mA — what the ratings mean for your filter or bias-T The LQH32MN680K23L is a 68 µH unshielded drum-core wirewound inductor from Murata's LQH32 series, rated for 80 mA continuous DC current with a maximum DCR of 5.5 Ohm. The 5.5 Ohm DCR produces a 440 mV DC voltage drop at rated current — that is the resistive loss floor. In a power-supply output filter or a DC bias-T, that drop eats into the available rail voltage; for a signal-path choke the series resistance adds thermal noise and limits the Q. ## Q and self-resonant frequency — where this part works Q is specified at 40 minimum at 1 MHz, and the self-resonant frequency (SRF) is 9 MHz. Below SRF the inductor behaves inductively; above it the parasitic capacitance dominates and the impedance drops. For a 1 MHz switching regulator output filter or a 2.4 GHz RF choke, the SRF is too low — this part belongs in the low-MHz band, typically EMI filtering, decoupling, or tuned circuits below 5 MHz. The unshielded construction means the magnetic field projects beyond the component body — adjacent traces or other inductors within a few millimeters will couple. For dense layouts, a shielded part in the same LQH32 family is the safer choice. ## Footprint and board-fit note The pad geometry is not the standard 1210 chip resistor footprint; confirm the land pattern from the Murata datasheet before layout. Operating temperature range is -40°C to +85°C, covering industrial indoor environments but not automotive under-hood or extended-temperature industrial. If the ambient around the inductor exceeds 85°C, the current derating curve from the datasheet must be applied. ## Sourcing — active production, no lifecycle watch No official successor or pin-compatible second-source is recorded. The LQH32 series includes shielded variants (LQH32P_ series) that share the same footprint but differ in DC bias saturation and SRF — a direct swap requires verifying the inductance under DC bias and the self-resonant behavior.","metaTitle":"Murata LQH32MN680K23L 68 µH Unshielded Wirewound Inductor","metaDescription":"Murata LQH32MN680K23L 68 µH unshielded drum core inductor, 80 mA rated current, 5.5 Ohm DCR, 1210 package. Active production.","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":"-","Q @ Freq":"40 @ 1MHz","Shielding":"Unshielded","Tolerance":"±10%","Inductance":"68 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":"LQH32MN","DC Resistance (DCR)":"5.5Ohm Max","Current Rating (Amps)":"80 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"1210 (3225 Metric)","Frequency - Self Resonant":"9MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cfd82089124c69e5e21a12ea773111de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the self-resonant frequency and why does it matter?","answer":"The self-resonant frequency is 9 MHz. Above this frequency the inductor behaves capacitively, so the part is not suitable for applications above the low-MHz band."},{"question":"What is the DC resistance and how does it affect circuit performance?","answer":"Maximum DCR is 5.5 Ohm. At the rated 80 mA this produces a 440 mV drop, which limits the part's usefulness in low-voltage power rails and adds thermal noise in signal paths."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32MN680K23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32MN680K23L 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}}