{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH32MN121J23L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH32MN121J23L","canonicalUrl":"https://icboms.com/murata-electronics/LQH32MN121J23L","factsUrl":"https://icboms.com/api/mcp/products/LQH32MN121J23L","rawCanonicalId":null},"summary":{"shortDescription":"Murata Electronics LQH32 series Drum Core, Wirewound inductor, 120 µH, ±5%, unshielded, ferrite core, 75 mA, 8 Ω max DCR, 1210 (3225 Metric) package.","salesMarkdown":"## 120 µH at 75 mA — where this fits in a filter or bias line The LQH32MN121J23L: The 120 µH inductance at test frequency 1 MHz places this in the LQH32 series as a mid-value energy-storage or filtering inductor. The 75 mA current rating is the DC bias ceiling before inductance starts to roll off due to core saturation — for a 50 mA load you have 50 % margin, which keeps the incremental inductance stable. Unshielded drum-core construction means the magnetic field extends beyond the package. In a dense PCB layout, the stray field can couple into adjacent signal traces or other inductors — keep a keep-out zone around the part or use a shielded variant if crosstalk is a concern. Operating temperature range is -40 °C to 85 °C, which covers most industrial and commercial environments but not extended automotive under-hood or high-temp telecom enclosures. The ferrite core material has a Curie point well above 85 °C, so the inductance drift over temperature is dominated by the core's permeability curve, not a phase change. ## DCR and Q factor — the AC loss picture at 796 kHz 8 Ω max DC resistance is the copper loss at DC. At 796 kHz the Q factor is 40 minimum — this tells you the ratio of reactance to effective AC resistance at that frequency. For a resonant tank or a filter operating near 796 kHz, the Q of 40 means the 3 dB bandwidth of the LC tank is about 2 % of the centre frequency, which is useful for narrowband filtering but may be too sharp for wideband ripple suppression. Self-resonant frequency is 7.5 MHz. Above this frequency the inductor behaves capacitively — the parasitic winding capacitance resonates with the inductance. For any application above about 1.5 MHz (20 % of SRF as a rule of thumb), the impedance starts to deviate from the ideal inductive curve. Keep the operating frequency below 2 MHz to stay in the inductive region with margin. ## Surface-mount 1210 — footprint and reflow The nonstandard case designation means the pad layout follows the 1210 footprint per the manufacturer's land pattern — standard 1210 solder pads with a 0.50 mm centre gap work. The ferrite core is not moisture-sensitive (MSL 1 typical for this construction), so no bake-out is needed before reflow. Supplied in tape-and-reel or cut-tape options. For volume production the reel quantity is the standard 7-inch reel count for 1210 inductors; for prototypes the cut-tape version lets you order small quantities without the reel fee. Sourced through independent distribution channels. No minimum order quantity constraints beyond the reel or cut-tape packaging increments.","metaTitle":"Murata LQH32MN121J23L 120 µH Drum Core Inductor, 75 mA","metaDescription":"120 µH unshielded wirewound inductor from Murata LQH32 series. 75 mA current rating, 8 Ω max DCR, 7.5 MHz SRF. Active production, surface mount 1210.","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 @ 796kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"120 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)":"8Ohm Max","Current Rating (Amps)":"75 mA","Height - Seated (Max)":"0.087\\\" (2.20mm)","Operating Temperature":"-40°C~85°C","Supplier Device Package":"1210 (3225 Metric)","Frequency - Self Resonant":"7.5MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 MHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cfd82089124c69e5e21a12ea773111de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is LQH32MN121J23L's inductance and current rating?","answer":"Inductance is 120 µH at 1 MHz test frequency, tolerance ±5 %. The DC current rating is 75 mA — this is the bias current at which inductance typically drops by 10 % due to core saturation. For a 50 mA load you have 50 % margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH32MN121J23L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH32MN121J23L 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}}