S21MT1/S21MT2 S21MT1/S21MT2 s Features 1. Compact.
S21MT1 - Compact 4-pin DIP Type Phototriac Coupler
S21MT1/S21MT2 S21MT1/S21MT2 s Features 1. Compact 4-pin DIP type (Package area : 2/3 of conventional model) 2. Popular type 3. Recognized by UL (No. .