This part is a kind of semiconductor called 1N4248.

Function of this product has General Purpose Silicon Rectifiers.

Manufacturers : SEMTECH

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POWER DISCRETES Description Quick reference data VR = 200V - 1000V IF = 1.0A trr = 2µS V = 1.2V F 1N4245, 1N4246, 1N4247, 1N4248, 1N4249 General Purpose Silicon Rectifiers Features ‹ 1 Amp 55°C/no heat sink ‹ Monolithic non-cavity construction ‹ Fused metal oxide hermetic seal ‹ Superior thermal shock resistance ‹ Low thermal impedance ‹ Low reverse leakage ‹ PIV to 1000 volts These products can be supplied as JAN, JANTX or JANTXV per MIL-S-19500/286 Electrical Specifications Electrical specifications: All temperatures are local ambient , 25°C unless otherwise specified. Device Types Reverse Voltage Forward Current (1) Reverse Current (Max) Instantaneous Forward Voltage Repetitive Surge Current 1 Cycle Surge Current tp = 8.3ms Reverse Recovery Time (2) Typical Thermal [ ... ]

1N4248 PDF Datasheet Download