BLM15AX601SN1D

Summary

every figure cited to the datasheet below

0402 chip ferrite bead, BLM15_SN series — 1.0 × 0.5 × 0.5 mm, 0.25 mm end electrodes, 0.001 g, no marking^p.4
Impedance 600 Ω ±25% typical at 100 MHz (measured 100 MHz ±1 MHz, Keysight 4291A with 16192A fixture)^{p.1, p.4}
Grouped “For general use” in the series rating table (AX characteristic)^p.1
Rated current 500 mA, and unmarked by the *1 flag — so the 85 → 125 °C derating curve applied to power-line members does not apply^{p.1, p.3}
Low DC resistance for its impedance class: 0.34 Ω max initial, 0.39 Ω max after testing^p.1
Operating and storage range −55 to +125 °C^p.3
Equivalent circuit is L in series with R — the resistance element becomes dominant at high frequencies, so noise is dissipated rather than reflected^p.4
8 mm paper tape at 2 mm pitch, 10,000 pcs per reel^p.6