DF3A3.3CT(TPL3) from Toshiba Semiconductor and Storage is a surface-mount TVS/Zener diode solution designed for general-purpose circuit protection in compact electronic designs. Positioned in the Circuit Protection > TVS > TVS - Diodes category, it is suitable for protecting sensitive signal lines and low-voltage nodes where transient suppression and board-space efficiency matter. Its CST3 package, SMD mounting style, dual unidirectional channel configuration, and listed 115pF capacitance @ 1MHz make it relevant for densely populated consumer, industrial control, and embedded boards. The product is marked Active in the provided specifications, which supports ongoing design consideration, although the broader lifecycle status is listed as unknown and should be confirmed with Toshiba or authorized distribution before long-term commitment. RoHS compliance information is not explicitly provided in the supplied data, so compliance should be treated as information not available pending official manufacturer documentation. For production use, engineers should verify latest datasheet, environmental declarations, and sourcing status.