29F0428-0T0

Overview

The Laird-Signal Integrity Products 29F0428-0T0 is a four-line power ferrite bead designed for electromagnetic interference (EMI) suppression. It features an impedance of 342 Ohms at 100 MHz and supports a maximum current rating of 10A. The component has a maximum DC resistance (DCR) of 10mOhm and operates within a temperature range of -40°C to 125°C. Its physical dimensions are 0.428 inches by 0.428 inches (10.88mm x 10.88mm). The device utilizes an 8-terminal through-hole mount configuration.

Feature Summary

• Four independent channels for simultaneous multi-rail noise filtering
• High current handling capability suitable for power supply lines
• Low DC resistance to minimize voltage drop in high-current applications

Applications

• Suppression of high-frequency noise on low-voltage, high-current rails
• Electromagnetic interference (EMI) filtering in power distribution networks
• Signal integrity enhancement in multi-channel power systems

Procurement Notes

Verify the specific terminal pitch and mounting hole specifications against your PCB footprint design before procurement. Confirm that the 10A current rating aligns with your peak load requirements. Ensure the operating temperature range meets your environmental conditions. Check for any specific RoHS compliance status updates from the manufacturer, as regulatory statuses can change over time.

Selection Notes

Select this component when multi-line EMI suppression is required on a single board space. The 342 Ohm impedance at 100 MHz targets common switching noise frequencies. The 10A rating makes it suitable for main power rails rather than signal lines. Consider the through-hole mounting requirement during layout planning compared to surface-mount alternatives.

Part Context

This part belongs to Laird's power ferrite bead series, specifically engineered for high-current power line filtering. Unlike single-line beads, this four-line variant allows for compact integration of noise suppression across multiple power domains. It serves as a passive component to attenuate high-frequency electromagnetic disturbances without introducing significant resistive losses.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if sourcing alternatives, ensuring equivalent impedance, current rating, and physical dimensions.