NLFC322522T-4R7M-PF NLFC322522T-680K NLFC322522T-680K-PF NLFC322522T-680K-PF 功率电感 NLFC322522T-680Y-ALP NLFC322522T-681K NLFC322522T-681K-PF NLFC322522T-6R8M NLFC322522T-6R8M-PF NLFC322522T-91M-GRF