Small Outline Diode (SOD) is a designation for a group of

semiconductor package A semiconductor package is a metal, plastic, glass, or ceramic casing containing one or more discrete semiconductor devices or integrated circuits. Individual components are fabricated on semiconductor wafers (commonly silicon) before being dic ...

s for surface mounted

diodes A diode is a two- terminal electronic component that conducts electric current primarily in one direction (asymmetric conductance). It has low (ideally zero) resistance in one direction and high (ideally infinite) resistance in the other. ...

. The standard includes multiple variants such as SOD-123, SOD-323, SOD-523 and SOD-923. SOD-123 is the largest, SOD-923 is the smallest.

References

Semiconductor packages {{Electronics-stub