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TDK Corporation ACM2520-102-2P — EMI Filters & Ferrite Beads

TDK ACM2520-102-2P common-mode choke, 1 kOhm @ 100 MHz

MPNACM2520-102-2P
Obsolete

TDK Corporation ACM series common-mode choke, ACM2520-102-2P, signal line filter, 2-line, 1 kOhms @ 100 MHz, 200 mA, 20 VDC, 900 mOhm DCR, surface mount, horizontal 4 PC pad, 2.50mm x 2.00mm.

$1.6000Ref. price · indicative, final on quote
TDK Corporation ACM2520-102-2P datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

ACM2520-102-2P specifications
ParameterValue
SeriesACM
Filter typeSignal Line
MountingSurface Mount
Voltage rating - DC20V
Current rating200mA
Impedance @ frequency1 kOhms @ 100 MHz
Operating temperature-25°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)900mOhm

Product details

1 kOhm common-mode impedance at 100 MHz

The ACM2520-102-2P: The 1 kOhms @ 100 MHz impedance targets conducted EMI on differential signal pairs — USB, CAN, LVDS, or audio lines — where common-mode noise couples into the cable shield or ground plane. At 200 mA continuous current the 900 mOhm DCR drops 180 mV across the choke — budget this voltage drop into the receiver's common-mode input range when the line is carrying both signal and DC bias.

Board-fit and temperature envelope

Rated for -25°C to 85°C operation — this is an industrial temperature band, not automotive-grade; the choke derates above 85°C ambient and should not be used in under-hood or engine-bay applications.

Frequently asked questions

Where can I buy the ACM2520-102-2P?

The ACM2520-102-2P is obsolete from TDK but available through independent surplus and excess-inventory channels.

What is the impedance value of the ACM2520-102-2P?

The ACM2520-102-2P provides 1 kOhms of common-mode impedance at 100 MHz, making it suitable for filtering conducted EMI on differential signal lines up to that frequency.

What is the current rating and DC resistance of the ACM2520-102-2P?

It is rated for 200 mA continuous current with a maximum DC resistance of 900 mOhm. The voltage drop across the choke at full current is 180 mV, which must be accounted for in the signal margin.