1-2176745-4

Overview

The 1-2176745-4 is a shielded, single-channel ferrite chip bead from the BMC-Q series by TE Connectivity / Sigma Inductors. Designed for high-current applications, it features a 1206 (3216 metric) surface-mount package measuring 3.2 mm in length, 1.6 mm in width, and up to 1.10 mm in height. The component provides an impedance of 70 Ohms at a test frequency of 100 MHz with a tolerance range of 25%. It supports a maximum DC current of 3 A and has a maximum DC resistance of 70 mOhms. The device operates within a temperature range of -40°C to +125°C and is suitable for automotive grade environments.

Feature Summary

• High current handling capability rated at 3 A maximum DC current
• Shielded construction to minimize electromagnetic interference
• Automotive grade qualification for reliable performance in harsh environments
• Flexible soft terminals designed to reduce mechanical stress on the PCB

Applications

• Automotive power line filtering
• High-current signal integrity protection
• Electromagnetic interference suppression in automotive electronics

Procurement Notes

Verify the specific impedance tolerance and current rating against the official datasheet before integration, as manufacturing batches may vary slightly. Confirm that the 1206 footprint dimensions and terminal flexibility requirements match your PCB design constraints. Ensure the operating temperature range of -40°C to +125°C aligns with your system's thermal profile. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when a shielded ferrite bead with high current capacity is required for automotive or industrial applications. The 70 Ohm impedance at 100 MHz makes it suitable for suppressing noise in power lines carrying up to 3 A. Consider the flexible terminal design if board flexing is a concern. Compare against unshielded alternatives if EMI shielding is not critical to your specific circuit layout.

Part Context

This component belongs to the BMC-Q series of ferrite chip beads, specifically engineered for quality and reliability in demanding environments. The series is characterized by its ability to handle high currents while maintaining effective noise suppression. As a product of TE Connectivity / Sigma Inductors, it adheres to strict automotive-grade standards, ensuring consistent performance across the specified temperature range.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative ferrite beads based on impedance, current rating, and package size if this specific part is unavailable.