Digikey is the official distributor this maker: ITG Electronics
but the part number is not searcheable in Digikey: SLNR6345-6R8MHF
information as follows:
SLNR6345-6R8MHF is a surface-mount (SMD) shielded power inductor manufactured by ITG Electronics. It is typically used in DC-DC converters, switching power supplies, voltage regulators, and power management circuits.
Part Number Breakdown
SLNR6345 = ITG Electronics shielded drum inductor series, approximately 6.3 mm × 6.3 mm footprint, 4.5 mm max height.
6R8 = 6.8 µH inductance.
M = ±20% inductance tolerance.
HF = Halogen-Free / RoHS-compliant version.