BLM18AG102SZ1D

Chip Ferrite Bead Overview

The Murata BLM18AG102SZ1D is a single-line chip ferrite bead from the EMIFIL BLM18A series, designed for high-frequency noise suppression in general electronic circuits. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6mm length, 0.8mm width, and 0.8mm height. The component provides an impedance of 1000 Ohms at 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 400 mA and has a maximum DC resistance of 500 mΩ. The device operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Multi-layer ferrite construction for effective high-frequency noise attenuation
• Nickel barrier electrode structure providing excellent soldering heat resistance
• Unshielded design suitable for circuits without stable ground connections
• Low resonance risk capability ensuring undistorted signal waveforms

Chip Ferrite Bead Applications

• High-frequency noise suppression on general signal lines
• Electromagnetic interference (EMI) suppression in consumer electronics
• Noise filtering in portable devices and industrial equipment
• Power management circuit noise reduction

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SZ1D' against official Murata documentation to confirm packaging details and tape-and-reel specifications. Ensure the selected variant matches the required 400mA current rating and 0603 footprint constraints. Cross-reference the impedance tolerance and DC resistance values with the latest datasheet to guarantee compatibility with the target circuit design requirements.

Chip Ferrite Bead Selection Notes

Select this component when a compact 0603 form factor is required for noise suppression on low-impedance lines. The BLM18AG series is optimized for wide frequency ranges starting from 30 MHz. Consider the 400mA current limit and 500mΩ DC resistance when designing power or signal paths to prevent excessive voltage drop or thermal issues during operation.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18A series of multi-layer ferrite beads. These components are engineered to suppress electromagnetic interference in small-footprint applications. The series utilizes advanced ceramic materials to provide high impedance at target frequencies while maintaining low DC resistance, making them suitable for modern miniaturized electronic designs.

Chip Ferrite Bead Replacement Considerations

The BLM18AG102SN1D is a documented alternative within the same series offering identical electrical characteristics and package dimensions.