{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACM4520V-421-2P-T00","brand":"TDK Corporation","brandSlug":"tdk-corporation","productSlug":"ACM4520V-421-2P-T00","canonicalUrl":"https://icboms.com/tdk-corporation/ACM4520V-421-2P-T00","factsUrl":"https://icboms.com/api/mcp/products/ACM4520V-421-2P-T00","rawCanonicalId":null},"summary":{"shortDescription":"TDK Corporation ACM-V series common mode filter, ACM4520V-421-2P-T00, power line, 420 Ohms @ 100 MHz, 1.4 A, 50 V DC, horizontal 4-pad SMD, AEC-Q200.","salesMarkdown":"## NRND status and BOM planning The ACM4520V-421-2P-T00: This means the part remains available for existing production BOMs, but TDK will not support new design-ins. A BOM engineer should evaluate a migration path or secure a last-time-buy quantity for the program's remaining build window. For a new design, a functionally equivalent part from the same ACM-V series — same 420 Ohms impedance at 100 MHz, same 1.4 A rating, same footprint — would be the natural starting point for a pin-compatible alternative. Confirm the exact order code with TDK's current product selector. ## Automotive qualification and deployment envelope Rated AEC-Q200, this filter meets the passive-component qualification standard for automotive electronics. The OEM auditor will expect PPAP documentation and a zero-defect lot trace; the AEC-Q200 stamp confirms the part passed thermal shock, vibration, and moisture resistance testing per the AEC component technical committee. The 50 V DC rating provides margin above the nominal rail voltage, including load-dump transients that can reach 40 V on a 12 V bus. 420 Ohms at 100 MHz targets conducted common-mode noise on the power input line — the typical frequency band for switching noise from a DC-DC converter or a motor-drive PWM stage. The impedance peak attenuates the noise before it propagates to the rest of the system. Rated 1.4 A continuous with a maximum DC resistance of 55 mOhm. At full current the I²R loss is 108 mW — well within the SMD package's thermal budget at 125°C ambient, but the derating curve should be checked if the ambient temperature exceeds 85°C or if airflow is restricted. ## PCB footprint and mounting The 4-pad layout is designed for reflow soldering; the two outer pads carry the line current, the inner pads are the common-mode return path. Surface-mount assembly with standard reflow profile. The tape-and-reel packaging (Cut Tape also available) supports automated pick-and-place for high-volume production.","metaTitle":"TDK ACM4520V-421-2P-T00 ACM-V Power Line Filter, 420 Ohms","metaDescription":"TDK ACM4520V-421-2P-T00, NRND, AEC-Q200 qualified common mode filter. 420 Ohms @ 100 MHz, 1.4 A, 50 V DC, 55 mOhm DCR. Sourced per 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) Cut Tape (CT)","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":"$1.3400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7dfc7739aa432a5ae6e265c1e719ed8d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to ACM4520V-421-2P-T00?","answer":"A functionally equivalent part from the same ACM-V series — same 420 Ohms impedance at 100 MHz, same 1.4 A rating, same 4-pad horizontal footprint — is the natural replacement. The exact order code should be confirmed against TDK's current product portfolio, as the NRND status applies to this specific suffix."},{"question":"What compliance documentation does TDK provide for ACM4520V-421-2P-T00?","answer":"TDK provides RoHS and REACH compliance declarations for the ACM-V series. AEC-Q200 qualification documentation, including the test report and PPAP-level data, is available from TDK upon request. No UL or IEC certification is listed for this filter type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/tdk-corporation/ACM4520V-421-2P-T00","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-T00 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}}