{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACM4520-231-2P-T000","brand":"TDK Corporation","brandSlug":"tdk-corporation","productSlug":"ACM4520-231-2P-T000","canonicalUrl":"https://icboms.com/tdk-corporation/ACM4520-231-2P-T000","factsUrl":"https://icboms.com/api/mcp/products/ACM4520-231-2P-T000","rawCanonicalId":null},"summary":{"shortDescription":"TDK ACM series common-mode choke, power line filter, ACM4520-231-2P-T000, 2-line, 230 Ω @ 100 MHz, 3 A, 50 mΩ DCR, 50 VDC, horizontal 4-pad SMD, -40 to 85 °C.","salesMarkdown":"## What the 230 Ω at 100 MHz means for your DC bus The ACM4520-231-2P-T000: This is a two-line common-mode choke from TDK's ACM series, built for power-line EMI suppression. The 230 Ω impedance at 100 MHz is the common-mode peak — the differential-mode inductance is intentionally low, so the choke attenuates conducted noise riding on the DC rail without saturating from the 3 A DC bias current. The 50 mΩ maximum DCR keeps the I²R loss at 3 A to 0.45 W. In still air that self-heats the ferrite about 8–10 °C, leaving margin at the 85 °C upper operating limit. On a board with any airflow the derating is negligible. Horizontal 4-pad SMD package, 4.70 x 4.50 mm footprint, 2.00 mm seated height. The pads are on the long edges — the part sits flat, not upright, so reflow paste inspection is straightforward. Standard reflow profile for a ferrite body; no special bake-out required unless the reel has been exposed to humidity beyond the MSL label. The ferrite material's Curie temperature is well above 125 °C, so the impedance holds across the operating band.","metaTitle":"TDK ACM4520-231-2P-T000 Power Line CM Choke, 230 Ω, 3 A","metaDescription":"TDK ACM4520-231-2P-T000 common-mode choke for power lines: 230 Ω at 100 MHz, 3 A, 50 mΩ DCR, 50 VDC. Active, available to order. 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) 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)":"3A","Impedance @ Frequency":"230 Ohms @ 100 MHz","Operating Temperature":"-40°C ~ 85°C","DC Resistance (DCR) (Max)":"50mOhm"}},"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 closest pin-compatible alternative in the ACM family?","answer":"The ACM4520 series includes other impedance values in the same 4.70 x 4.50 mm horizontal package and 2-line pinout — for example, a 90 Ω or 600 Ω variant at the same 3 A rating. The pad layout and footprint are shared; only the ferrite mix and the resulting impedance curve differ. Confirm the target attenuation band before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/tdk-corporation/ACM4520-231-2P-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/ACM4520-231-2P-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}}