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TDK Corporation ACM2520-301-2P-T002 — EMI Filters & Ferrite Beads

TDK ACM2520-301-2P-T002 Common Mode Choke

MPNACM2520-301-2P-T002
Active

TDK ACM series common mode choke, signal line, 300 Ohms @ 100 MHz, 400 mA, 20 V DC, 350 mOhm DCR, horizontal 4-pad 2.50mm x 2.00mm, -40°C to 85°C.

$0.8400Ref. price · indicative, final on quote
TDK Corporation ACM2520-301-2P-T002 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ACM2520-301-2P-T002 specifications
ParameterValue
SeriesACM
Filter typeSignal Line
MountingSurface Mount
Voltage rating - DC20V
Current rating400mA
Impedance @ frequency300 Ohms @ 100 MHz
Operating temperature-40°C ~ 85°C
Height0.051\" (1.30mm)
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
PackageTape & Reel (TR) Cut Tape (CT)
CaseHorizontal, 4 PC Pad
Number of lines2
DC resistance (DCR)350mOhm

Product details

What the 300 Ohm impedance means for your differential signal pair

The ACM2520-301-2P-T002: This is a common-mode choke, not a simple ferrite bead — it targets differential signal pairs (USB, CAN, LVDS, audio lines) where common-mode noise rides on both lines equally. The 300 Ohms at 100 MHz impedance attenuates that common-mode current while leaving the differential signal intact. Rated for 20 V DC and 400 mA continuous, with a maximum DCR of 350 mOhm — the voltage drop across the winding at full current is 140 mV, which matters if the downstream receiver has a tight common-mode input range.