The 5581SA-XXX-XX represents an unknown electronic component from Neltron. Supreme Components International is an authorized distributor of Neltron components. Due to the variable nature of this component, indicated by the 'XXX-XX' suffix in the MPN, the precise specifications are dependent on the specific suffix. Potential applications and performance characteristics are determined by this suffix. Customers are advised to contact Supreme Components International to confirm the exact specifications and availability of the desired variant. We can provide detailed datasheets and application notes where available. As an authorized distributor, we guarantee the authenticity and quality of Neltron components.