U30D20A Datasheet PDF - Thinki Semiconductor Co., Ltd.

Features
Dual rectifier construction, positive center-tap
Plastic package has Underwriters Laboratory
   Flammability Classification 94V0
Glass passivated chip junctions
Superfast recovery time, high voltage
Low forward voltage, high current capability
Low thermal resistance
Low power loss, high efficiency
High temperature soldering guaranteed: 260℃, 0.16”(4.06mm)from case for 10 seconds