{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACM4520-142-2P-T000","brand":"TDK Corporation","brandSlug":"tdk-corporation","productSlug":"ACM4520-142-2P-T000","canonicalUrl":"https://icboms.com/tdk-corporation/ACM4520-142-2P-T000","factsUrl":"https://icboms.com/api/mcp/products/ACM4520-142-2P-T000","rawCanonicalId":null},"summary":{"shortDescription":"TDK Corporation ACM series common-mode filter, ACM4520-142-2P-T000, power line type, 1.4 kOhms @ 100 MHz, 1.7 A, 50 VDC, 80 mOhm DCR, horizontal 4-pad SMD, -40°C to +85°C.","salesMarkdown":"## Active production — no end-of-life notice on file TDK lists the ACM4520-142-2P-T000 as an Active product. No PCN or EOL notice has been issued, so this part remains a standard catalog line for both new designs and replacement BOM positions. ## 1.4 kOhms at 100 MHz — the attenuation target The common-mode impedance is 1.4 kOhms at 100 MHz. That places the notch squarely on conducted EMI from switching power supplies or digital clock harmonics in the 30–300 MHz range — the band most likely to fail CISPR 22 / FCC Part 15 radiated limits. At lower frequencies the impedance drops off; this filter is not effective below about 10 MHz. Rated for 1.7 A continuous current on the line. Push beyond that and the ferrite core saturates, collapsing the impedance to near zero — the filter stops filtering. ## Horizontal 4-pad SMD — board-fit constraints The package is a horizontal-mount common-mode choke with four pads — two input, two output. The horizontal orientation means the winding axis is parallel to the PCB, which keeps the profile low but the footprint is wider than a vertical-mount equivalent. Rated for surface-mount reflow soldering. The 50 V DC voltage rating limits it to low-voltage power rails or signal lines — not for mains or 48 V telecom bus applications.","metaTitle":"TDK ACM4520-142-2P-T000 Power Line CM Choke, 1.4 kOhm, 1.7 A","metaDescription":"TDK ACM4520-142-2P-T000 common-mode filter, 1.4 kOhms @ 100 MHz, 1.7 A, 50 VDC, 80 mOhm DCR, -40 to +85°C, SMD. 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":"-","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)":"1.7A","Impedance @ Frequency":"1.4 kOhms @ 100 MHz","Operating Temperature":"-40°C ~ 85°C","DC Resistance (DCR) (Max)":"80mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2ca5d0425c064f06154be0de84f1c36e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the common-mode impedance of ACM4520-142-2P-T000?","answer":"The common-mode impedance is 1.4 kOhms at 100 MHz. This targets conducted EMI from switching converters and digital logic in the 30–300 MHz band."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/tdk-corporation/ACM4520-142-2P-T000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/tdk-corporation/ACM4520-142-2P-T000 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}}