1. SMA (DO-214AC) Case. 2. S1A,S1B,S1D,S1G,S1J.S1K,S1M. 3. GS1A,GS1B,GS1D,GS1G,GS1J.GS1K,GS1M. 4. Price and Quality. * S1A-S1M (GS1A-GS1M) SMD Rectifier Diodes: 1A, 50V-1000V, SMA * S1A (GS1A): 50V * S1B (GS1B): 100V * S1D (GS1D): 200V * S1G (GS1G): 400V * S1J (GS1J): 600V * S1K (GS1K): 800V * S1M (GS1M): 1000V * Package: SMA (DO-214AC) * Packing: tape in reel, 5000pcs/reel