The SMCJ33CA is a three-volt single line, surface mount, unidirectional transient voltage suppressor (TVS) diode manufactured by SLKormicro. It is rated to withstand transient overvoltages up to 53.3V, 36.7V, and 33V. It is constructed in a DO-214AB package, which is a small, plastic-encapsulated, surface-mount form factor. The SMCJ33CA is RoHS (Restriction of Hazardous Substances) compliant and is designed for use in computer and consumer electronics applications.