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Product Detailed Parameters
- Description：CMC 300MA 2LN 380 OHM SMD
- Series：ACM-H
- Mfr：TDK Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：500mOhm
- Voltage Rating - DC：20V
- 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：380 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The ACM2012H-381-2P-T05 is a surface-mount common mode filter from TDK Corporation, designed for high-speed differential signal lines. It features an 0805 (2012 metric) package with two channels. The component provides a nominal impedance of 380 Ohms at 100 MHz and has an inductance of 900 nH. It supports a maximum DC current of 300 mA with a maximum DC resistance of 500 mOhms. The device operates within a temperature range of -40°C to +105°C.
Feature Summary
- Designed specifically for filtering high-speed differential signal lines
- Compact 0805 surface-mount footprint suitable for space-constrained PCBs
- Provides effective common mode noise suppression with low insertion loss
Applications
- High-speed data interface protection
- Differential signal line filtering
- General signal line noise suppression
Procurement Notes
Verify the complete part number including suffixes such as T05 to ensure correct packaging and tape specifications. Confirm that the 0805 package dimensions align with the target PCB land pattern. Check that the 300 mA current rating meets the operational requirements of the specific circuit application to prevent saturation or overheating.
Selection Notes
Select this component when space is limited due to its small 0805 form factor. Ensure the required impedance level matches the system's noise profile, as 380 Ohms is specific to certain frequency ranges. Verify that the 300 mA current handling capability is sufficient for the signal line to avoid performance degradation under load conditions.
Part Context
This component belongs to the TDK ACM series of common mode chokes and filters. The series offers various package sizes and impedance values tailored for different signal speeds and current requirements. The ACM2012H variant specifically targets applications requiring compact solutions for high-frequency noise attenuation in digital communication interfaces.
Replacement Considerations
Consult official TDK documentation for direct cross-references. Other ACM series parts with similar impedance and current ratings may serve as alternatives if package compatibility allows. Verify that any substitute maintains the same operating temperature range and electrical characteristics for the specific application.
