SRF4532TA-142Y

Overview

The Bourns SRF4532TA-142Y is a shielded common mode choke in the SRF4532TA series, designed for PCB mounting. It features a ferrite core and offers an inductance of 4 µH with a tolerance of ±35%. The component provides an impedance of 1.4 kΩ at 100 MHz. It supports a maximum DC current of 2 A and has a maximum DC resistance of 100 mΩ. Rated for 50 V DC, it operates within a temperature range of -55°C to +125°C. The package dimensions are 4.5 mm x 3.2 mm x 2.8 mm (1812 metric).

Feature Summary

• Shielded construction minimizes electromagnetic interference radiation.
• Ferrite core design ensures high impedance across broad frequency ranges.
• Compact surface-mount footprint suitable for space-constrained layouts.

Applications

• EMI suppression in data lines
• Signal integrity protection in high-speed interfaces
• Automotive electronics compliant with AEC-Q200 standards

Procurement Notes

Verify the specific suffix 'Y' against the manufacturer's latest datasheet to confirm packaging and tape-and-reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for your circuit design. Cross-reference the AEC-Q200 qualification status if automotive reliability is mandatory for your application.

Selection Notes

Select this component when a compact, shielded common mode choke is required for EMI filtering in tight spaces. The 4 µH inductance and 2 A current rating suit moderate-power signal lines. Consider the 100 mΩ DCR for power loss calculations. Verify that the 1.4 kΩ impedance at 100 MHz aligns with the noise frequencies present in your target application environment.

Part Context

This part belongs to the Bourns SRF4532TA series of common mode chip inductors. The series is characterized by its small 1812 metric footprint and shielded design. These components are engineered to provide effective noise suppression while maintaining signal integrity in dense electronic assemblies.

Replacement Considerations

Check for direct substitutes within the same series or compatible packages from other manufacturers. Ensure replacement parts match the 4.5x3.2x2.8 mm dimensions and 2 A current rating. Verify equivalent impedance characteristics at 100 MHz to maintain filter performance.