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TDK Corporation ACM2012-681-2P-T001 — EMI Filters & Ferrite Beads

TDK ACM2012-681-2P-T001 Common Mode Choke, 680 Ohms

MPNACM2012-681-2P-T001
Active

TDK Corporation ACM series common mode choke, ACM2012-681-2P-T001, signal line filter, 680 Ohms @ 100 MHz, 200 mA, 50 VDC, AEC-Q200, surface mount, horizontal 4-pad package.

$1.6500Ref. price · indicative, final on quote
TDK Corporation ACM2012-681-2P-T001 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ACM2012-681-2P-T001 specifications
ParameterValue
SeriesACM
Filter typeSignal Line
MountingSurface Mount
Voltage rating - DC50V
Current rating200mA
Impedance @ frequency680 Ohms @ 100 MHz
Operating temperature-40°C~105°C
Height0.051\" (1.30mm)
Size (Dimension)0.079\" L x 0.047\" W (2.00mm x 1.20mm)
PackageTape & Reel (TR); Cut Tape (CT)
RatingsAEC-Q200
CaseHorizontal, 4 PC Pad
Number of lines2
DC resistance (DCR)1.3Ohm

Product details

Signal-line common mode choke, 680 Ohms at 100 MHz

The TDK ACM2012-681-2P-T001 is a two-line common mode choke from the ACM series, designed to suppress common-mode noise on signal lines up to 680 Ohms at 100 MHz. Rated for 200 mA continuous current with a maximum DC resistance of 1.3 Ohms, the voltage drop and self-heating stay low enough for most digital interface or sensor lines.

Board-fit and temperature envelope

Operating from -40°C to 105°C, the choke covers the full automotive ambient range plus margin for self-heating under rated current. The 50 VDC voltage rating covers common automotive and industrial supply rails (12 V, 24 V, 48 V) with ample headroom.

Frequently asked questions

What is the impedance of the ACM2012-681-2P-T001 at 100 MHz?

It provides 680 Ohms of common-mode impedance at 100 MHz, which is the typical frequency for suppressing conducted EMI from switching regulators or high-speed digital lines.

Is the ACM2012-681-2P-T001 AEC-Q200 qualified?

Yes, it carries AEC-Q200 qualification, meaning it has passed automotive-grade stress tests for temperature cycling, moisture resistance, and mechanical shock.

What is the maximum DC resistance and current rating?

The DCR is 1.3 Ohms maximum, and the current rating is 200 mA. The DCR limits the voltage drop across the choke at full current to about 260 mV.