BT137S-500 Triacs
BT137S-500D Triacs logic level
BT137S-500E Triacs sensitive gate
BT137S-500F Triacs
BT137S-500G Triacs
BT137S-600 Triacs
BT137S-600D Triacs logic level
BT137S-600E Triacs sensitive gate
BT137S-600F Triacs
BT137S-600G Triacs
BT137S-800 Triacs
BT137S-800E Triacs sensitive gate(????????????)
BT137S-800F Triacs
BT137S-800G Triacs