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Product Detailed Parameters
- Description：CMC 400MA 2LN 120 OHM SMD
- Series：SRF2012AA
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：300mOhm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°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：120 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The SRF2012A-121YA is a surface mount common mode choke from Bourns Inc., designed for automotive applications. It features a dual-line configuration with an impedance of 120 Ohms at 100 MHz and a DC current rating of 400 mA. The component has a maximum DC resistance of 300 mOhm per line and operates within a temperature range of -40°C to 125°C. It complies with the AEC-Q200 qualification standard, ensuring reliability in harsh environments.
Feature Summary
- Dual-line common mode filtering for noise suppression
- Automotive-grade AEC-Q200 qualification
- Surface mount package for automated assembly
Applications
- Automotive electronic circuits
- Data line protection
- Signal integrity enhancement in vehicles
Procurement Notes
Verify the specific suffix 'YA' against the official Bourns datasheet to confirm packaging and tape-and-reel specifications. Ensure the procurement channel provides valid traceability documentation required for automotive components. Confirm that the delivered units match the AEC-Q200 compliance status stated in the product description.
Selection Notes
Select this component when designing circuits requiring common mode noise reduction for data lines in automotive systems. Consider the 400 mA current rating and 120 Ohm impedance at 100 MHz to ensure compatibility with signal frequencies. Verify that the operating temperature range meets the environmental requirements of the installation location.
Part Context
This part belongs to the SRF2012AA series of common mode chokes by Bourns Electronic Solutions. The series is characterized by its compact surface mount form factor and suitability for high-reliability applications. The specific model indicates a standardized impedance value within this product family.
Replacement Considerations
Consult the official Bourns replacement guide or distributor cross-reference lists for verified equivalents. Do not assume functional interchangeability based solely on physical dimensions or nominal impedance values without verifying electrical characteristics and qualification standards.
