These are axial ferrite beads designed for EMI suppression in through hole circuits. The package includes 10 pieces in two compact sizes: 3.5 x 8 x 0.8 mm and 3.5 x 9 x 0.8 mm. Key benefits Suppress frequency noise and EMI: ferrite beads provide impedance to HF signals, helping to keep power and signal lines clean. Minimal impact on DC current: designed to offer HF attenuation with very low DC resistance. Flexible implementation: axial throughhole form factor fits common PCB layouts and assembly processes. Simple, reliable filtering: no active components needed, contributing to robust circuit protection. Key attributes Quantity: 10 pieces Type: AXIAL FERRITE BEADS (inductor beads used for EMI suppression) Sizes: 3.5 x 8 x 0.8 mm and 3.5 x 9 x 0.8 mm Material: ferrite Mounting: axial throughhole Performance: impedance to frequency noise with low DC resistance Applications Power supply and regulator lines to reduce switching noise and RF interference Data and signal lines on PCBs to improve signal integrity and reduce EMI Automotive electronics, audio equipment, and general RF/noise suppression in compact axial filter form factors Usage notes Suitable for throughhole PCB designs that accommodate axial ferrite beads Use in series with the line to be filtered to maximize HF impedance and minimize conducted EMI This product description reflects the offered quantity, axial ferrite bead type, and the two size options (3.5 x 8 x 0.8 mm and 3.5 x 9 x 0.8 mm) included in the 10piece package, aligned with the stated specifications and features.