FCB-0402-300A

Chip Ferrite Bead Overview

The FCB-0402-300A is a general-purpose ferrite chip bead manufactured by Signal Transformer. It features a 0402 (1005 metric) surface mount package with dimensions of 1.0 mm length, 0.5 mm width, and 0.5 mm height. The component provides an impedance of 30 Ohms at a test frequency of 100 MHz. It supports a maximum DC current of 500 mA and has a maximum DC resistance of 200 mOhms. The tolerance is specified at 25%. The device operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high-frequency impedance characteristics.
• Utilizes a shielded design for effective noise reduction in compact layouts.
• Supports surface mount technology for automated assembly processes.

Chip Ferrite Bead Applications

• High-speed data line filtering
• Power supply output decoupling
• Clock signal noise attenuation

Chip Ferrite Bead Procurement Notes

Verify the manufacturer designation carefully, as Bel Signal Transformer and Signal Transformer are related entities. Confirm the specific impedance value and package size match the design requirements. Check RoHS compliance status directly from the official datasheet before integration. Ensure the supplier source is authorized to guarantee component authenticity and traceability.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0402 footprint. Choose based on the required 30 Ohm impedance at 100 MHz for the target noise spectrum. Verify that the 500 mA current rating exceeds the circuit's maximum operating current. Consider the low DC resistance to minimize voltage drop and power loss in the signal path.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the FCB series of chip beads designed for general-purpose applications. It is part of a broader family of passive components used for EMI suppression. The product line emphasizes compact form factors suitable for modern dense PCB designs. Signal Transformer produces these components to meet industry standards for reliability and performance.

Chip Ferrite Bead FAQ

What is the test frequency for the specified impedance?

The impedance of 30 Ohms is measured at a test frequency of 100 MHz.

Does this component have a shielded construction?

Yes, the FCB-0402-300A is described as a shielded ferrite bead.