{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LQH43NH102J03L","brand":"Murata Electronics","brandSlug":"murata-electronics","productSlug":"LQH43NH102J03L","canonicalUrl":"https://icboms.com/murata-electronics/LQH43NH102J03L","factsUrl":"https://icboms.com/api/mcp/products/LQH43NH102J03L","rawCanonicalId":null},"summary":{"shortDescription":"Murata LQH43 series drum core wirewound inductor, 1 mH, ±5%, 45 mA, 18.6 Ohm DCR, AEC-Q200, unshielded, 1812 SMD package.","salesMarkdown":"## 1 mH at 45 mA — where the inductance and current meet The LQH43NH102J03L is a 1 mH wirewound drum core inductor rated for 45 mA continuous current. That inductance at that current makes it a candidate for low-current DC-DC converter output filters and bias-T networks where the load draws under 45 mA and the filter corner sits well below 2 MHz. The 18.6 Ohm maximum DCR means the resistive voltage drop at full rated current is just under 0.84 V — a factor when the downstream rail has tight regulation tolerance. Self-heating from that DC loss is modest at 45 mA, but derating the current by 20-30% in a 105°C ambient keeps the temperature rise under 40°C. ## AEC-Q200 — the automotive reliability baseline Qualified to AEC-Q200, the passive-component stress-test standard for automotive electronics. Suitable for under-hood modules, engine-control units, and transmission controllers that see the full temperature envelope. Production status is active per Murata's lifecycle record — no NRND or EOL notice on file. The part is available through authorized and independent distribution channels; lead time and pricing are confirmed at RFQ for the BOM quantity. ## Unshielded drum core — what the construction means for your board Keep sensitive traces (high-impedance analog inputs, precision references) at least 5 mm from the inductor body, or place a ground plane under the part to contain the stray field. The ferrite core material is optimized for the 1 kHz test frequency; the self-resonant frequency of 2 MHz sets the usable band ceiling. Tape-and-reel packaging supports automated pick-and-place; the cut-tape option is available for prototyping or low-volume builds.","metaTitle":"Murata LQH43NH102J03L Inductor, 1 mH, 45 mA, 1812","metaDescription":"Murata LQH43NH102J03L wirewound drum core inductor, 1 mH ±5%, 45 mA rated current, 18.6 Ohm DCR, AEC-Q200, 1812 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":"LQH43","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"AEC-Q200","Features":"-","Q @ Freq":"40 @ 252kHz","Shielding":"Unshielded","Tolerance":"±5%","Inductance":"1 mH","Mounting Type":"Surface Mount","Package / Case":"1812 (4532 Metric)","Product Status":"Active","Material - Core":"Ferrite","lifecycle_stage":"unknown","Size / Dimension":"0.177\\\" L x 0.126\\\" W (4.50mm x 3.20mm)","Base Product Number":"LQH43NH","DC Resistance (DCR)":"18.6Ohm Max","Current Rating (Amps)":"45 mA","Height - Seated (Max)":"0.110\\\" (2.80mm)","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"1812","Frequency - Self Resonant":"2MHz","Current - Saturation (Isat)":"-","Inductance Frequency - Test":"1 kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b8fe98626664ecf0068858b1162f6220.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LQH43NH102J03L and get a price quote?","answer":"LQH43NH102J03L is sourced through independent and authorized distribution. No stock-holding claim — availability is verified per inquiry."},{"question":"What is the Q factor of LQH43NH102J03L and at what frequency?","answer":"The minimum Q factor is 40 at 252 kHz. This is relevant if the inductor is used in a resonant tank or tuned filter — the Q sets the selectivity and insertion loss at that frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/murata-electronics/LQH43NH102J03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/murata-electronics/LQH43NH102J03L 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}}