7427929112

Overview

The Würth Elektronik 7427929112 is a surface-mount power ferrite bead from the WE-PF series, designed for high-speed EMI suppression. It exhibits an impedance of 200 Ohms at 100 MHz and supports a maximum DC current of 5 A. The component features a low maximum DC resistance of 0.025 Ohms. It operates within a temperature range of -55°C to +125°C and is constructed in an 8 mm SMD package.

Feature Summary

• High current handling capability suitable for power line filtering applications
• Low DC resistance minimizes voltage drop and power loss in the circuit
• Designed for effective electromagnetic interference suppression in high-speed environments

Applications

• Power supply output filtering
• DC-DC converter input and output stages
• High-speed data line EMI suppression

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official datasheet before integration. Confirm that the 5 A current rating aligns with the thermal management capabilities of the target PCB layout. Ensure the 8 mm footprint matches the design constraints.

Selection Notes

Select this component when high current capacity is required alongside significant impedance at 100 MHz. The low DC resistance makes it suitable for sensitive power rails where voltage drop must be minimized. Consider the 8 mm package size for adequate heat dissipation and mechanical stability.

Part Context

This part belongs to the WE-PF series of power ferrite beads manufactured by Würth Elektronik. These components are engineered for robust EMI suppression in demanding electronic environments. The series offers various impedance and current ratings to suit different power and signal integrity requirements.

Replacement Considerations

Cross-reference with other WE-PF series parts or equivalent high-current ferrite beads from other manufacturers. Verify that substitute components match the 200 Ohm impedance at 100 MHz and the 5 A current rating.