Skip to main content
Log in
TDK Corporation ACM4520-421-2P-TL000 — EMI Filters & Ferrite Beads

TDK ACM4520-421-2P-TL000 Power Line Filter

MPNACM4520-421-2P-TL000
Active

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.

$0.4635Ref. price · indicative, final on quote
TDK Corporation ACM4520-421-2P-TL000 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ACM4520-421-2P-TL000 specifications
ParameterValue
SeriesACM
Filter typePower Line
MountingSurface Mount
Voltage rating - DC50V
Current rating2.4A
Impedance @ frequency420 Ohms @ 100 MHz
Operating temperature-40°C ~ 85°C
Height0.079\" (2.00mm)
Size (Dimension)0.185\" L x 0.177\" W (4.70mm x 4.50mm)
PackageTape & Reel (TR)
CaseHorizontal, 4 PC Pad
Number of lines2
DC resistance (DCR)55mOhm

Product details

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.

Frequently asked questions

Where can I buy ACM4520-421-2P-TL000 and how do I get a price?

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.

What is the impedance rating of ACM4520-421-2P-TL000?

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.