Skip to main content
Log in
TDK Corporation ACM2012E-251-2P-T00 — EMI Filters & Ferrite Beads

TDK ACM2012E-251-2P-T00 Common Mode Filter

MPNACM2012E-251-2P-T00
Obsolete

TDK Corporation ACM-E series common mode filter, ACM2012E-251-2P-T00, 2-line, 250 Ohms @ 100 MHz, 200 mA, 50 VDC, 0805 package, surface mount.

$0.5300Ref. price · indicative, final on quote
TDK Corporation ACM2012E-251-2P-T00 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

ACM2012E-251-2P-T00 specifications
ParameterValue
SeriesACM-E
Filter typeSignal Line
MountingSurface Mount
Voltage rating - DC50V
Current rating200mA
Impedance @ frequency250 Ohms @ 100 MHz
Operating temperature-40°C~85°C
Height0.043\" (1.10mm)
Size (Dimension)0.079\" L x 0.047\" W (2.00mm x 1.20mm)
PackageTape & Reel (TR); Cut Tape (CT)
CaseHorizontal, 4 PC Pad
Number of lines2
DC resistance (DCR)1Ohm

Product details

250 Ω common-mode choke for signal-line EMI

The TDK ACM2012E-251-2P-T00 is a two-line common-mode filter from the ACM-E series, delivering 250 Ohms of common-mode impedance at 100 MHz to suppress conducted EMI on differential signal pairs. Rated for 200 mA continuous current with a maximum DC resistance of 1 Ohm, this filter is sized for low-power signal lines — think I2C, SPI, or low-speed data buses — where the series voltage drop across the DCR stays under 200 mV at full load.

Obsolete — sourced through surplus channels

TDK has marked the ACM2012E-251-2P-T00 as obsolete, meaning the manufacturer no longer produces this order code.

Frequently asked questions

What is the impedance rating of ACM2012E-251-2P-T00?

250 Ohms at 100 MHz, which is the common-mode impedance the filter presents at that frequency — the figure that determines how much common-mode noise is attenuated on the signal pair.