5 x 3 2 smt act530smx 4 series crystals act bs1000ikgrofl pf 5x3 2mm smd crystal act530smx 4 series 10mhz frequency 30ppm tolerance 530smx 4 16pf load capacitance 80r esr at fundamental resonance these are low cost high quality 4 pad crystals that are designed for surface mounting applications at cut crystal low aging gold plated pad surfaces ceramic base metal lid package package seam welded for long term reliability lid grounded via package to reduce emi issues the choice of