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Product Detailed Parameters
- Description：CMC 1.5UH 420 OHM 3.2A SMD
- Series：SRF4532TA
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：3.2A
- DC Resistance (DCR) (Max)：55mOhm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 125°C
- Ratings：AEC-Q200
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.177" L x 0.126" W (4.50mm x 3.20mm)
- Height (Max)：0.118" (3.00mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：1.5 µH @ 100 kHz
- Impedance @ Frequency：420 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The Bourns SRF4532TA-421Y is a surface-mount common mode choke designed for high-frequency noise suppression. It features an inductance of 1.5 µH at 100 kHz and offers an impedance of 420 Ω at 100 MHz. The component supports a maximum DC current of 3.2 A with a typical DC resistance of 55 mΩ. Housed in a compact 1812 (4.5 x 3.2 x 2.8 mm) package, it operates within a temperature range of -55°C to +125°C. This device meets AEC-Q200 standards for automotive reliability.
Feature Summary
- AEC-Q200 qualified for automotive grade reliability
- High saturation current capability of 3.2 A
- Compact 1812 surface mount footprint
Applications
- Automotive infotainment systems
- Data line protection in vehicle networks
- Power supply input filtering
Procurement Notes
Verify the specific suffix 'Y' against the manufacturer's latest datasheet to confirm tape-and-reel packaging specifications. Ensure the ordering quantity aligns with standard reel sizes defined by Bourns Inc. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.
Selection Notes
Select this component when space constraints require an 1812 footprint with high current handling. The 1.5 µH inductance suits low-frequency differential signal lines. Verify that the 3.2 A rating exceeds the peak operating current of the target circuit to prevent saturation. Confirm compatibility with automated pick-and-place equipment due to the SMD package type.
Part Context
This part belongs to the SRF4532TA series of shielded common mode chokes from Bourns. The series is engineered for applications requiring robust noise attenuation in compact electronic designs. The 4532 metric size provides a balance between performance and board real estate efficiency.
Replacement Considerations
Consult official substitution guides for equivalent parts with matching 1.5 µH inductance and 3.2 A current ratings. Verify pinout compatibility and physical dimensions before replacing to ensure mechanical fit.
