{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACM2012-121-2P-T001","brand":"TDK Corporation","brandSlug":"tdk-corporation","productSlug":"ACM2012-121-2P-T001","canonicalUrl":"https://icboms.com/tdk-corporation/ACM2012-121-2P-T001","factsUrl":"https://icboms.com/api/mcp/products/ACM2012-121-2P-T001","rawCanonicalId":null},"summary":{"shortDescription":"TDK Corporation ACM series common mode filter, ACM2012-121-2P-T001, signal line, 2 lines, 120 Ohms at 100 MHz, 370 mA, 50V DC, 220 mOhm DCR, surface mount, horizontal 4 PC pad, -40°C~105°C.","salesMarkdown":"## Common mode filtering for differential signal pairs The TDK ACM2012-121-2P-T001 is a two-line common mode filter from the ACM series, designed to suppress common mode noise on differential signal lines without degrading the differential signal integrity. With a rated impedance of 120 Ohms at 100 MHz, it targets conducted EMI in the 100 MHz band, which is the typical switching noise range for DC-DC converters and high-speed digital interfaces like USB and HDMI. ## Current handling and insertion loss budget The 50V DC voltage rating covers most signal-level applications with ample margin, including 24V industrial buses and 48V PoE circuits. ## Package and assembly fit Housed in a 2.00mm x 1.20mm horizontal package with four pad connections, the ACM2012-121-2P-T001 mounts on standard surface-mount pads and reflows with common lead-free profiles. The 1.30mm seated height keeps it low-profile for dense PCB layouts where clearance above the board is constrained.","metaTitle":"TDK ACM2012-121-2P-T001 Common Mode Filter, 120 Ohms","metaDescription":"TDK ACM2012-121-2P-T001 common mode filter, 120 Ohms at 100 MHz, 370 mA, 50V DC, 220 mOhm DCR, -40 to 105°C. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["EMI Filters & Ferrite Beads"],"specifications":{"Mfr":"TDK Corporation","Series":"ACM","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Features":"-","Filter Type":"Signal Line","Height (Max)":"0.051\\\" (1.30mm)","Mounting Type":"Surface Mount","Package / Case":"Horizontal, 4 PC Pad","Product Status":"Active","Approval Agency":"-","Number of Lines":"2","lifecycle_stage":"unknown","Size / Dimension":"0.079\\\" L x 0.047\\\" W (2.00mm x 1.20mm)","Voltage Rating - AC":"-","Voltage Rating - DC":"50V","Current Rating (Max)":"370mA","Impedance @ Frequency":"120 Ohms @ 100 MHz","Operating Temperature":"-40°C~105°C","DC Resistance (DCR) (Max)":"220mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0fce0241e9ae085d9306d8c5c2126a83.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ACM2012-121-2P-T001/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy ACM2012-121-2P-T001 and get a price?","answer":"This part is sourced through distribution channels."},{"question":"What is the impedance of ACM2012-121-2P-T001 at 100 MHz?","answer":"The common mode impedance is 120 Ohms at 100 MHz, targeting conducted EMI suppression in the 100 MHz band common to switching converters and high-speed digital interfaces."},{"question":"What is the maximum current rating for ACM2012-121-2P-T001?","answer":"The continuous current rating is 370 mA, with a maximum DC resistance of 220 mOhm producing an 81 mV drop at full rated current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/tdk-corporation/ACM2012-121-2P-T001","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/tdk-corporation/ACM2012-121-2P-T001 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}}