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Product Detailed Parameters
- Description：CMC 500UH 1A 2LN SMD AEC-Q200
- Series：SRF0905A
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：150mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 105°C
- Ratings：AEC-Q200
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.362" L x 0.236" W (9.20mm x 6.00mm)
- Height (Max)：0.248" (6.30mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：500 µH @ 100 kHz
- Impedance @ Frequency：1 kOhms @ 1 MHz
- Qualification：-
- Grade：-
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Overview
The Bourns SRF0905A-501Y is a surface-mount common mode choke from the SRF0905A series, designed for signal line filtering. It features an inductance of 500 µH with a tolerance of ±50% and a self-resonant frequency of 1 kOhm impedance at test conditions. The component supports a maximum DC current of 1 A and has a maximum DC resistance of 0.15 Ω. Rated for 80 V DC, it operates within a temperature range of -40°C to +105°C. The package dimensions are 9.2 mm x 6 mm x 5 mm, and it holds AEC-Q200 qualification.
Feature Summary
- AEC-Q200 qualified for automotive reliability standards
- Surface mount design for automated PCB assembly
- High inductance value for effective noise suppression
Applications
- Automotive signal line filtering
- Data bus protection circuits
- Electronic control unit (ECU) input/output lines
Procurement Notes
Verify the specific suffix 'Y' indicates the standard tape and reel packaging configuration as per Bourns documentation. Confirm that the AEC-Q200 rating applies to this specific part number variant. Ensure compatibility with peak reflow temperature profiles specified in the datasheet. Check for any lead-free compliance certifications required by your manufacturing process. Validate that the 1 A current rating meets the operational requirements of the target circuit under all thermal conditions.
Selection Notes
Select this component when high inductance is required for common mode noise attenuation in space-constrained automotive applications. The 0905 footprint allows for compact board layouts compared to larger through-hole alternatives. Consider the 1 A current rating to ensure adequate margin for peak signal currents. The wide operating temperature range suits harsh automotive environments. Verify that the 80 V DC voltage rating exceeds the system's maximum operating voltage.
Part Context
This component belongs to the Bourns SRF0905A series of surface-mount common mode chokes. The series is characterized by its small 0905 inch package size, making it suitable for dense PCB designs. These filters are engineered to suppress electromagnetic interference on differential and single-ended signal lines. The AEC-Q200 qualification distinguishes this series for use in automotive electronics where long-term reliability is critical.
Replacement Considerations
Direct substitutes must match the 500 µH inductance, 1 A current rating, and 0905 package dimensions. Verify that alternative parts also hold AEC-Q200 certification if automotive use is intended. Compare DC resistance values to ensure similar power loss characteristics. Check pinout compatibility if the replacement uses a different terminal configuration.
