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Product Detailed Parameters
- Description：CMC 400MA 2LN 90 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：-55°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：90 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The SRF2012A-900YA is a two-line surface mount common mode choke manufactured by Bourns Inc. It features a ferrite core and operates within a temperature range of -55°C to 125°C. The component has a maximum DC current rating of 400 mA and a maximum DC resistance (DCR) of 300 mΩ. Its impedance is specified as 90 Ohms at 100 MHz, with a voltage rating of 50 V DC. The physical dimensions are 2 mm x 1.2 mm x 1.2 mm, utilizing a 4-pin surface mount package.
Feature Summary
- Provides common mode noise suppression for high-speed data lines
- Utilizes a ferrite core material for effective filtering performance
- Designed for compact surface mount applications
Applications
- High-speed data interface protection
- USB port filtering
- HDMI signal line noise reduction
Procurement Notes
Verify the specific suffix 'YA' against the manufacturer's latest datasheet to confirm impedance tolerance and packaging details. Ensure the ordering quantity matches the standard reel size provided in official documentation. Cross-reference the AEC-Q200 status if automotive qualification is required for the final assembly.
Selection Notes
Select this component when space constraints require a 2012 footprint and low DCR is critical for signal integrity. The 400 mA rating suits low-power data lines. Verify that the 90 Ohm impedance at 100 MHz aligns with the target frequency spectrum of the noise being suppressed.
Part Context
This part belongs to the SRF2012A series of unshielded surface mount common mode chokes from Bourns. The series offers various impedance values within the same mechanical envelope, allowing designers to choose specific filtering characteristics without altering the PCB layout footprint.
Replacement Considerations
Check for other SRF2012A variants with different impedance ratings if the 90 Ohm specification does not match the circuit requirements. Verify pinout compatibility before substituting with components from other manufacturers offering similar 2012 footprint common mode chokes.
