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Product Detailed Parameters
- Description：CMC 4.7MH 400MA 2LN 4 KOHM SMD
- Series：SRF0905
- 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)：900mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.362" L x 0.236" W (9.20mm x 6.00mm)
- Height (Max)：0.209" (5.30mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：4.7 mH @ 100 kHz
- Impedance @ Frequency：4 kOhms @ 300 kHz
- Qualification：-
- Grade：-
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Overview
The Bourns SRF0905-472Y is a surface-mount, two-line common mode choke from the SRF0905 series. It features an inductance of 4.7 mH at 100 kHz and a DC resistance (DCR) maximum of 900 milliohms. The component has a rated current of 400 mA and an impedance of 4 kOhms at 3 MHz. It operates within a temperature range of -40°C to 105°C and holds AEC-Q200 qualification. The package dimensions are 9.20 mm x 6.00 mm with a maximum height of 5.30 mm.
Feature Summary
- AEC-Q200 qualified for automotive reliability standards
- Shielded design minimizes electromagnetic interference
- Compact surface-mount footprint for space-constrained layouts
Applications
- Automotive electronics signal filtering
- Data line protection in vehicle networks
- Common mode noise suppression in compact modules
Procurement Notes
Verify the exact part number suffix against official Bourns documentation to ensure correct tolerance and packaging specifications. Confirm that the AEC-Q200 qualification status aligns with specific automotive project requirements before finalizing procurement decisions.
Selection Notes
Select this component when designing circuits requiring high inductance in a small surface-mount package. Ensure the operating current does not exceed the 400 mA rating to maintain performance. Verify compatibility with automated assembly processes given the horizontal lead configuration.
Part Context
This component belongs to the Bourns SRF0905 series of shielded common mode chokes. The series is designed for applications requiring effective noise suppression in limited board space. The SRF0905-472Y specifically targets automotive and industrial environments where reliability and size are critical constraints.
Replacement Considerations
Check for direct substitutes within the SRF0905 series or other Bourns shielded CMC lines. Verify pinout compatibility and physical dimensions before substituting to ensure mechanical fit on existing PCB layouts.
FAQ
What is the maximum DC current rating for the SRF0905-472Y?
The maximum DC current rating is 400 mA.
Is the SRF0905-472Y suitable for automotive applications?
Yes, it is AEC-Q200 qualified, making it suitable for automotive electronic systems.
