I would like to order SiT3907AI-22-33NH-6.553600 and SiT3521AI-2C133-GG6.553600
Welcome to the community! At this time we currently don’t carry the blank parts for SiT3907 or SiT3521 to program in-house. We are able to quote these parts through the manufacturer. Future requests for either of these series should go to email@example.com.