{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACM4520-421-2P-TL000","brand":"TDK Corporation","brandSlug":"tdk-corporation","productSlug":"ACM4520-421-2P-TL000","canonicalUrl":"https://icboms.com/tdk-corporation/ACM4520-421-2P-TL000","factsUrl":"https://icboms.com/api/mcp/products/ACM4520-421-2P-TL000","rawCanonicalId":null},"summary":{"shortDescription":"TDK Corporation ACM Series Power Line common-mode filter, ACM4520-421-2P-TL000, 420 Ohms @ 100 MHz, 2.4 A, 50 VDC, 55 mOhm DCR, Horizontal 4 PC Pad, Tape & Reel.","salesMarkdown":"## Common-mode impedance and current handling The TDK ACM4520-421-2P-TL000 is a two-line common-mode filter from the ACM series, rated for 420 Ohms impedance at 100 MHz. This impedance peak is centered on the conducted-emission band for switching power supplies and data lines — the filter attenuates common-mode noise where it couples into the DC rail or signal pair. It carries 2.4 A continuous current with a maximum DC resistance of 55 mOhm. ## Package and board integration The four-pad layout is a standard common-mode filter footprint — the two input pads and two output pads keep the differential pair symmetric. The low profile suits board-to-board spacing in compact power supplies or I/O filter banks. The temperature grade is commercial/industrial — not automotive-qualified, so it fits controlled environments rather than under-hood or engine-bay applications.","metaTitle":"TDK ACM4520-421-2P-TL000 Power Line Filter","metaDescription":"TDK ACM4520-421-2P-TL000 common-mode filter, 420 Ohm impedance at 100 MHz, 2.4 A, 50 VDC, 55 mOhm DCR. Active production, surface-mount. Request a quote.","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)","Ratings":"-","Features":"-","Filter Type":"Power Line","Height (Max)":"0.079\\\" (2.00mm)","Mounting Type":"Surface Mount","Package / Case":"Horizontal, 4 PC Pad","Product Status":"Active","Approval Agency":"-","Number of Lines":"2","lifecycle_stage":"unknown","Size / Dimension":"0.185\\\" L x 0.177\\\" W (4.70mm x 4.50mm)","Voltage Rating - AC":"-","Voltage Rating - DC":"50V","Current Rating (Max)":"2.4A","Impedance @ Frequency":"420 Ohms @ 100 MHz","Operating Temperature":"-40°C ~ 85°C","DC Resistance (DCR) (Max)":"55mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4635","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2ca5d0425c064f06154be0de84f1c36e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy ACM4520-421-2P-TL000 and how do I get a price?","answer":"The ACM4520-421-2P-TL000 is sourced to order against your BOM quantity through authorized and independent distribution. Submit an RFQ for current pricing and lead-time confirmation."},{"question":"What is the impedance rating of ACM4520-421-2P-TL000?","answer":"The common-mode impedance is 420 Ohms at 100 MHz, which is the typical frequency for conducted EMI attenuation in DC power lines and low-speed signal pairs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/tdk-corporation/ACM4520-421-2P-TL000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/tdk-corporation/ACM4520-421-2P-TL000 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}}