SZ1005K121CTF

Overview

The SZ1005K121CTF is a single-line ferrite bead manufactured by Shenzhen Sunlord Electronics Co., Ltd. It features a 0402 (1005 Metric) surface-mount package with dimensions of 1.00mm x 0.50mm and a maximum height of 0.65mm. The component provides an impedance of 120 Ohms at 100 MHz with a tolerance of ±25%. It has a maximum DC resistance of 400 milliohms and a rated current of 200mA. The device operates within a temperature range of -55°C to +125°C and is supplied in tape and reel packaging.

Feature Summary

• Provides signal line filtering with high impedance characteristics at 100 MHz
• Designed for compact surface-mount applications using standard 0402 footprint
• Constructed for operation across extended industrial temperature ranges

Applications

• Signal line noise suppression in electronic circuits
• High-frequency interference filtering in compact devices
• Power integrity management in low-current signal paths

Procurement Notes

Verify the complete part number including suffixes such as 'TF' or 'CTF' to ensure correct packaging configuration, as these designators typically indicate specific tape and reel quantities or handling requirements. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Cross-reference the manufacturer datasheet for specific reflow soldering profiles compatible with the ceramic construction to prevent thermal damage during manufacturing processes.

Selection Notes

Select this component when space constraints require a 0402 footprint for ferrite beads. Ensure the circuit current does not exceed the 200mA rating to avoid saturation or excessive heating. Verify that the 120 Ohm impedance at 100 MHz aligns with the target noise frequency spectrum. Consider the 400 milliohm DC resistance impact on signal attenuation if used in sensitive low-voltage lines.

Part Context

This component belongs to the general category of multi-layer chip ceramic inductors and ferrite beads produced by Sunlord. These components are designed for electromagnetic interference suppression in portable electronics and communication equipment. The 0402 size represents a standard miniaturized form factor widely adopted in modern printed circuit board designs requiring high component density.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include GZ1005D121TF and WLBD1005K2U121TP. Verify mechanical compatibility and electrical specifications before substitution.