This part is a kind of semiconductor called 1N4935.

Function of this product has FAST RECOVERY RECTIFIERS 50-600 VOLTS 1.0 AMPERE.

Manufacturers : MotorolaInc

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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by 1N4933/D Axial-Lead Fast-Recovery Rectifiers Axial–lead, fast–recovery rectifiers are designed for special applications such as dc power supplies, inverters, converters, ultrasonic systems, choppers, low RF interference and free wheeling diodes. A complete line of fast recovery rectifiers having typical recovery time of 150 nanoseconds providing high efficiency at frequencies to 250 kHz. Mechanical Characteristics • Case: Epoxy, Molded • Weight: 0.4 gram (approximately) • Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable • Lead and Mounting Surface Temperature for Soldering Purposes: 220°C Max. for 10 Seconds, 1/16″ from case • Shipped in plastic bags, 1000 per bag. �� [ ... ]

1N4935 PDF Datasheet Download