WEE Technology Company Limited 

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEET Shares With You The Difference Between Frame Structure And Flattened Structure Diodes' Outline 

The biggiest difference is the terminal shape, which is easy to identify.

Frame Structure Diodes' Outline : SMA, SMB,SMC

Flattened Structure Diodes' Outline: SMA-J, SMB-J