S1A-M3, S1B-M3, S1D-M3, S1G-M3, S1J-M3, S1K-M3, S1.
S1K-M3 - Surface Mount Glass Passivated Rectifier
S1A-M3, S1B-M3, S1D-M3, S1G-M3, S1J-M3, S1K-M3, S1M-M3 www.vishay.com Vishay General Semiconductor Surface Mount Glass Passivated Rectifier DO-214.