{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACM2012-900-2P-T001","brand":"TDK Corporation","brandSlug":"tdk-corporation","productSlug":"ACM2012-900-2P-T001","canonicalUrl":"https://icboms.com/tdk-corporation/ACM2012-900-2P-T001","factsUrl":"https://icboms.com/api/mcp/products/ACM2012-900-2P-T001","rawCanonicalId":null},"summary":{"shortDescription":"TDK Corporation ACM series common mode filter, ACM2012-900-2P-T001, 2-line, 90 Ω at 100 MHz, 400 mA, 50 V DC, AEC-Q200, 0805 package, surface mount.","salesMarkdown":"## Active production, automotive-qualified common-mode choke The TDK ACM2012-900-2P-T001 is an active-production common-mode filter from the ACM series, carrying AEC-Q200 qualification — the automotive passive-component stress test that covers temperature cycling, vibration, and solder-heat resistance. With a 90 Ω impedance at 100 MHz, a 400 mA current rating, and a 190 mΩ maximum DCR, this 2-line filter is sized for signal-line EMI suppression on CAN, LIN, or low-speed data buses where the common-mode noise sits in the 100 MHz band. ## What the 90 Ω rating means for the BOM The 90 Ω impedance at 100 MHz is the common-mode attenuation spec — it tells you how much the filter chokes the noise current on both lines simultaneously. For a 12 V automotive bus switching at a few MHz, the 100 MHz band is where conducted emissions from the switching regulator harmonics land; this filter knocks them down before they radiate off the harness. The 4-pad configuration is the common-mode choke topology — the two signal lines share the same ferrite core, so the filter suppresses noise on both lines simultaneously, unlike a 2-pad ferrite bead that only filters one line. AEC-Q200 Grade 1 qualification means it passed the 1000-hour high-temperature operating life test at 105°C.","metaTitle":"TDK ACM2012-900-2P-T001 Common Mode Filter, 90 Ω, AEC-Q200","metaDescription":"TDK ACM2012-900-2P-T001 common mode filter, 90 Ω at 100 MHz, 400 mA, 50 V DC. AEC-Q200 qualified. Active production, sourced to order.","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":"AEC-Q200","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)":"400mA","Impedance @ Frequency":"90 Ohms @ 100 MHz","Operating Temperature":"-40°C ~ 105°C","DC Resistance (DCR) (Max)":"190mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0fce0241e9ae085d9306d8c5c2126a83.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ACM2012-900-2P-T001/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/tdk-corporation/ACM2012-900-2P-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/ACM2012-900-2P-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}}