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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 ~ 105°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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Overview
The ACM2012-121-2P-T001 is a two-channel surface-mount common mode filter from the TDK ACM series, designed for high-speed differential signal lines. It features an impedance of 120 Ohms at 100 MHz and supports a maximum DC current of 370 mA. The component has a maximum DC resistance of 220 mOhms and an inductance of 340 nH. It operates within a temperature range of -40°C to +85°C or +105°C depending on specific rating configurations. The device utilizes a compact 0805 (2.0mm x 1.2mm x 1.3mm) package with SMD/SMT termination.
Feature Summary
- Achieves significant noise suppression while maintaining required common mode filter characteristics through a miniaturized wire-wound design.
Applications
- USB cables for computers and peripheral devices
- IEEE1394 and ETHERNET cables for computers and STBs
- LVDS and Panel Link cables for liquid crystal screens
Procurement Notes
Verify the specific operating temperature rating (+85°C vs +105°C) against the official datasheet, as conflicting data exists in public sources. Confirm AEC-Q200 automotive qualification status if required for the application. Ensure the 370 mA current rating aligns with circuit requirements. Check for RoHS compliance documentation prior to procurement.
Selection Notes
Select this component for applications requiring low differential mode impedance to minimize impact on high-speed signals. The 0805 footprint suits space-constrained PCB layouts. Evaluate the 120 Ohm impedance at 100 MHz against the target noise frequency spectrum. Ensure the 370 mA current handling capacity exceeds the maximum expected line current.
Part Context
This part belongs to the TDK ACM series of common mode chokes specifically engineered for high-speed differential signal lines. The series offers various impedance values and current ratings in compact packages. The ACM2012 variant represents a small form factor suitable for dense electronic assemblies.
Replacement Considerations
ACM2012-121-2P-T002 shares identical electrical specifications including 120 Ohm impedance and 370 mA rating. Verify package dimensions and terminal configuration compatibility before substitution.
