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Product Detailed Parameters
- Description：CMC 170MA 2LN 680 OHM SMD
- Series：ACM-E
- Mfr：TDK Corporation
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：170mA
- DC Resistance (DCR) (Max)：1.8Ohm
- 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)：0.043" (1.10mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：680 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The ACM2012E-681-2P-T00 is a surface-mount common mode choke from TDK Corporation, designed for high-speed and general differential signal lines. It features an impedance of 680 Ohms at standard test frequencies and supports a maximum DC current of 170 mA. The component has a maximum DC resistance of 1.8 Ohms and operates within a temperature range starting from -40°C. Packaged in a compact SMD form factor suitable for automated assembly, it provides noise suppression capabilities while maintaining signal integrity in dense circuit layouts.
Feature Summary
- Engineered specifically for suppressing common mode noise on high-speed differential signal lines
- Provides effective interference reduction for general differential signal transmission applications
- Utilizes a compact surface mount package design to facilitate space-constrained PCB integration
Applications
- High-speed differential data interface circuits
- General differential signal line noise suppression
- Portable electronic device signal integrity protection
Procurement Notes
Verify the complete part number including the suffix against official TDK documentation to ensure correct impedance and current ratings. Confirm that the specified package dimensions and terminal configurations match your PCB footprint requirements. Review the latest datasheet for any updates regarding recommended soldering profiles and storage conditions to maintain component reliability during assembly.
Selection Notes
Select this component when designing circuits requiring common mode noise attenuation for differential pairs with moderate current demands. Ensure the operating current remains below the 170 mA limit to prevent saturation. Consider the physical size constraints of the application, as the surface mount package is optimized for density. Validate that the impedance characteristics align with the frequency spectrum of the signals being protected.
Part Context
This component belongs to the ACM2012E series of common mode chokes manufactured by TDK Corporation. The series offers various impedance values tailored for different signal speeds and noise environments. These components are widely used in consumer electronics and industrial equipment where reliable signal transmission is critical. The specific model represents a standardized solution for balancing performance and board space efficiency.
Replacement Considerations
Consult TDK's official cross-reference guides or distributor databases for verified substitute part numbers. Ensure any replacement maintains identical impedance, current rating, and physical dimensions to guarantee compatibility without redesigning the PCB layout.
