{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACM4520V-421-2P-TL00","brand":"TDK Corporation","brandSlug":"tdk-corporation","productSlug":"ACM4520V-421-2P-TL00","canonicalUrl":"https://icboms.com/tdk-corporation/ACM4520V-421-2P-TL00","factsUrl":"https://icboms.com/api/mcp/products/ACM4520V-421-2P-TL00","rawCanonicalId":null},"summary":{"shortDescription":"TDK Corporation ACM-V series power line EMI filter, ACM4520V-421-2P-TL00, 2-line, 420 Ohms @ 100 MHz, 1.4 A, 55 mOhm DCR, AEC-Q200, surface mount.","salesMarkdown":"## NRND status and what it means for your BOM TDK has designated the ACM4520V-421-2P-TL00 as Not Recommended for New Design (NRND). This means the part remains available for existing production but is not intended for new design-ins. For a BOM that already carries this order code, the NRND flag signals a planning window: confirm your volume horizon and evaluate whether a last-time-buy or a migration to a current-series alternative fits your program timeline. ## 420 Ohms at 100 MHz — the suppression target The core filtering spec is 420 Ohms impedance at 100 MHz. This is a power-line common-mode choke — the impedance peak is tuned for conducted EMI suppression in the 100 MHz band, which covers the switching noise from DC-DC converters and the clock harmonics typical in automotive and industrial power rails. The 2-line configuration handles a differential pair or a single power-and-return pair. ## 1.4 A continuous with 55 mOhm DCR Rated for 1.4 A continuous current with a maximum DC resistance of 55 mOhm. At full rated current, the resistive loss is roughly 108 mW — negligible for most power budgets, but the DCR matters for voltage drop in a low-voltage rail. Qualified to AEC-Q200, the passive-component stress-test standard for automotive electronics. The horizontal 4-pad surface-mount package measures 4.70 mm x 4.50 mm with a 2.00 mm seated height — a compact footprint for dense PCB layouts in ECU and BMS designs.","metaTitle":"TDK ACM4520V-421-2P-TL00 Power Line Filter","metaDescription":"TDK ACM4520V-421-2P-TL00 NRND power line EMI filter, 420 Ohms @ 100 MHz, 1.4A, 55mOhm DCR, AEC-Q200. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["EMI Filters & Ferrite Beads"],"specifications":{"Mfr":"TDK Corporation","Series":"ACM-V","Package":"Tape & Reel (TR)","Ratings":"AEC-Q200","Features":"-","Filter Type":"Power Line","Height (Max)":"0.079\\\" (2.00mm)","Mounting Type":"Surface Mount","Package / Case":"Horizontal, 4 PC Pad","Product Status":"Not For New Designs","Approval Agency":"-","Number of Lines":"2","lifecycle_stage":"unknown","Size / Dimension":"0.185\\\" L x 0.177\\\" W (4.70mm x 4.50mm)","Voltage Rating - AC":"-","Voltage Rating - DC":"50V","Current Rating (Max)":"1.4A","Impedance @ Frequency":"420 Ohms @ 100 MHz","Operating Temperature":"-40°C ~ 125°C","DC Resistance (DCR) (Max)":"55mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6180","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7dfc7739aa432a5ae6e265c1e719ed8d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the impedance rating of the ACM4520V-421-2P-TL00?","answer":"420 Ohms at 100 MHz. This is the common-mode impedance that defines the filter's attenuation band for conducted EMI on power lines."},{"question":"What is the current rating and DC resistance of this filter?","answer":"Rated for 1.4 A continuous current with a maximum DC resistance of 55 mOhm. The DCR limits the voltage drop and self-heating in the power path."},{"question":"Is the ACM4520V-421-2P-TL00 qualified for automotive use?","answer":"Yes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/tdk-corporation/ACM4520V-421-2P-TL00","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/tdk-corporation/ACM4520V-421-2P-TL00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}