DO-204

DO-204 is a family of diode semiconductor packages defined by JEDEC.

This family comprises lead-mounted axial devices with round leads.

Generally a diode will have a line painted near the cathode end.

Several common packages are archived in DO-204 as variants, and may be referred to using their alternative names.

[11][14] The name is derived from the JEDEC descriptor "Diode Outline, Case Style 41".

1N4148 axial diodes, in the glass DO-35 package (also known as DO-204-AH or SOD27)
General form of the packages described by DO-204. Lead diameter is not controlled less than E from the body to allow for minor irregularities.
A drawing of a DO-41 diode package. The cathode is marked with a silver or white band.