ACM2012-121-2P-T002

$0.29

Description：CMC 370MA 2LN 120 OHM SMD
Series：ACM
Mfr：TDK Corporation
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:788dc9e84330 Category: Common Mode Chokes Brand: TDK Corporation

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Product introduction

Product Detailed Parameters

Description：CMC 370MA 2LN 120 OHM SMD
Series：ACM
Mfr：TDK Corporation
Package：Tape & Reel (TR),Cut Tape (CT)
Filter Type：Signal Line
Number of Lines：2
Current Rating (Max)：370mA
DC Resistance (DCR) (Max)：220mOhm
Voltage Rating - DC：50V
Voltage Rating - AC：-
Operating Temperature：-40°C ~ 85°C
Ratings：-
Approval Agency：-
Features：-
Mounting Type：Surface Mount
Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
Height (Max)：0.051" (1.30mm)
Package / Case：Horizontal, 4 PC Pad
Inductance @ Frequency：-
Impedance @ Frequency：120 Ohms @ 100 MHz
Qualification：-
Grade：-

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ACM2012-121-2P-T002

Overview

The TDK ACM2012-121-2P-T002 is a two-line common mode filter from the ACM series, designed for high-speed differential signal lines. It features an impedance of 120 Ohms at 100 MHz and a maximum DC current rating of 370 mA. The component has a maximum DC resistance (DCR) of 220 mOhms and an inductance of 340 nH. Operating within a temperature range of -40°C to +85°C, it utilizes a surface mount package with dimensions of 2.0mm x 1.2mm x 1.3mm.

Feature Summary

Achieves significant noise suppression while maintaining required common mode filter characteristics through a wound-type chip design.
Provides high impedance for common mode noise at 100MHz while suppressing differential mode impedance to minimize impact on high-speed signals.

Applications

USB lines for computers and peripheral devices
IEEE1394 and ETHERNET lines for computers and set-top boxes
LVDS and Panel Link lines for LCD screens

Procurement Notes

Verify the specific part number ACM2012-121-2P-T002 against official TDK documentation to confirm electrical parameters such as 120 Ohm impedance and 370 mA current rating. Ensure the package type matches the 2012 metric footprint requirements for your PCB layout. Confirm that the operating temperature range meets your application's environmental specifications before finalizing procurement.

Selection Notes

Select this component when filtering high-speed differential signals like USB or Ethernet where low differential mode impedance is critical to preserve signal integrity. The compact 2012 package size suits space-constrained designs. Ensure the 370 mA current rating exceeds the maximum expected line current to prevent saturation and maintain effective noise suppression performance under load conditions.

Part Context

This component belongs to the TDK ACM series of signal line common mode chokes. These filters are engineered specifically for suppressing electromagnetic interference on high-speed data lines. The ACM series offers various impedance values and current ratings within standardized surface-mount packages to accommodate different interface standards and board space limitations.

Replacement Considerations

Consult official TDK documentation for verified substitute part numbers within the ACM series that match the required 120 Ohm impedance and 370 mA current specifications. Ensure any replacement maintains the same 2012 package dimensions and thermal characteristics to fit existing footprints without redesign.

FAQ

How does the ACM2012-121-2P-T002 affect high-speed differential signals?

It suppresses differential mode impedance to a low level, ensuring that high-speed signals experience minimal impact while effectively attenuating common mode noise.