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Product Detailed Parameters
- Description：CMC 330MA 2LN 160 OHM SMD
- Series：ACM-21
- Mfr：Abracon LLC
- Package：Tape & Reel (TR),Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：330mA
- DC Resistance (DCR) (Max)：350mOhm
- 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)：0.055" (1.40mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：160 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The ACM-21-161M-T is a surface-mount common mode choke from the Abracon ACM-21 series, designed for signal line filtering. It features an impedance of 160 Ohms at 100 MHz and supports a maximum current rating of 330 mA. The component exhibits a maximum DC resistance of 350 mOhm per line. It operates within a temperature range of -40°C to 85°C and utilizes a horizontal 4-pin package with dimensions of 3.00mm x 1.60mm x 2.00mm.
Feature Summary
- Provides common mode noise suppression for high-speed data lines
- Compact surface-mount design suitable for space-constrained PCB layouts
- Low DC resistance minimizes signal loss in power or data paths
Applications
- High-speed serial interface protection
- USB port filtering
- HDMI signal line noise reduction
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status as required by project specifications. Ensure the supplier provides official datasheets matching the ACM-21 series documentation to validate electrical parameters against the 160 Ohm @ 100 MHz specification.
Selection Notes
Select this component where a 160 Ohm impedance at 100 MHz aligns with the target frequency spectrum for noise attenuation. The 330 mA current rating must exceed the operational current of the protected circuit. Consider the 3.00mm x 1.60mm footprint compatibility during PCB layout planning to ensure adequate clearance and soldering reliability.
Part Context
This part belongs to the Abracon ACM-21 series of chip wire-wound common mode chokes. The series offers various impedance and current ratings within a standardized small outline package. These components are engineered for EMI suppression in portable electronics and communication devices requiring efficient noise filtering without significant signal degradation.
Replacement Considerations
Cross-reference with other ACM-21 variants such as ACM-21-201M-T if different impedance characteristics are needed. Verify pinout compatibility and physical dimensions before substituting with generic common mode chokes to maintain board integrity.
