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Product Detailed Parameters
- Description：CMC 300MA 2LN 260 OHM SMD
- Series：ACM-21
- Mfr：Abracon LLC
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：400mOhm
- 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：260 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The ACM-21-261M-T is a two-line common mode choke manufactured by Abracon LLC, designed for surface mount applications. It features an impedance of 260 Ohms at 100 MHz and supports a maximum DC current rating of 300 mA. The component has a maximum DC resistance (DCR) of 500 milliohms and operates within a temperature range of -40°C to +85°C. It utilizes a horizontal package with four PCB terminals.
Feature Summary
- Provides common mode noise suppression for signal lines in compact surface mount configurations
- Utilizes wirewound ferrite core technology for effective electromagnetic interference filtering
- Designed for high-density circuit board layouts with standardized footprint dimensions
Applications
- Data line protection in portable electronic devices
- Signal integrity enhancement in USB interface circuits
- Noise reduction in high-speed digital communication buses
Procurement Notes
Verify the specific ordering suffix and packaging configuration against official Abracon documentation prior to procurement. Confirm that the selected variant matches the required impedance and current ratings for the target application. Ensure compliance with RoHS directives and check for any specific handling requirements related to moisture sensitivity levels during storage and assembly processes.
Selection Notes
Select this component when space constraints require a low-profile surface mount solution for EMI suppression. Evaluate the 300 mA current rating against peak load requirements to prevent saturation. Consider the 260 Ohm impedance characteristic relative to the operating frequency of the protected signal lines to ensure adequate attenuation without signal degradation.
Part Context
This part belongs to the ACM-21 series of chip wire wound common mode chokes from Abracon. The series offers various impedance and current combinations tailored for different data line protection needs. These components are engineered to meet industry standards for electromagnetic compatibility in consumer electronics and industrial control systems.
Replacement Considerations
Consult official manufacturer substitution guides for verified equivalents. Cross-reference impedance values, current ratings, and physical dimensions to ensure functional compatibility. Verify that alternative components maintain similar thermal performance and mounting characteristics.
