DO-214

DO-214 is a standard that specifies a group of semiconductor packages for surface-mounted diodes.

Overview

The standard includes multiple package variants:

DO-214AA, also known as SMB, is the middle size.
DO-214AB, also known as SMC, is the largest size.
DO-214AC, also known as SMA, is the smallest size.
DO-214BA, also known as GF1