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Product Detailed Parameters
- Description：CMC 400MA 2LN 300 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)：400mA
- DC Resistance (DCR) (Max)：350mOhm
- Voltage Rating - DC：20V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.098" L x 0.079" W (2.50mm x 2.00mm)
- Height (Max)：0.051" (1.30mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：300 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The ACM2520-301-2P-T002 is a two-line common mode choke manufactured by TDK Corporation, designed for surface mount applications. It features a compact 1008 (2520 metric) package with dimensions of 2.50mm length, 2.00mm width, and 1.20mm height. The component provides a typical impedance of 300 Ohms at 100 MHz and an inductance of 660 nH at 1 MHz. It supports a maximum DC current of 400 mA with a maximum DC resistance of 350 mOhms. Rated for 20V DC, it operates within a temperature range of -40°C to +85°C.
Feature Summary
- Engineered for high-speed differential signal lines to suppress common mode noise while minimizing impact on signal integrity.
- Utilizes a wire-wound construction suitable for general differential signal lines and power line noise reduction.
- Offers a low-profile surface mount design optimized for space-constrained PCB layouts.
Applications
- Noise suppression for USB data lines in personal computers and peripheral devices
- Common mode noise filtering for IEEE1394 (FireWire) connections in digital video cameras and set-top boxes
- Signal integrity protection for LVDS interfaces connecting liquid crystal display panels
Procurement Notes
Verify the complete part number including the suffix when sourcing, as variations exist within the ACM series. Confirm that the specific T002 designation matches the required reel packaging specifications. Ensure compatibility with standard reflow soldering profiles defined in the manufacturer's guidelines. Cross-reference the DigiKey or Mouser catalog numbers if using distributor-specific identifiers to avoid ordering errors.
Selection Notes
Select this component when designing circuits requiring effective common mode noise attenuation for high-speed differential pairs. The 300 Ohm impedance at 100 MHz makes it suitable for frequencies encountered in USB and FireWire protocols. Consider the 400 mA current rating to ensure the choke does not saturate during peak operational loads. The small footprint allows integration into dense board designs where larger chokes would be impractical.
Part Context
This device belongs to the TDK ACM series of common mode filters, which are widely used in consumer electronics and industrial equipment. The series includes various impedance ratings tailored for different frequency ranges and signal speeds. The ACM2520 form factor represents a balance between electrical performance and physical size, catering to modern miniaturization trends in electronic assemblies.
Replacement Considerations
Direct substitutes may include other TDK ACM2520 variants with similar impedance characteristics, such as the ACM2520-102-2P-T002, though impedance values differ significantly. Verify pinout compatibility and thermal performance before swapping components from different manufacturers.
