This part is a kind of semiconductor called 1N3671.

Function of this product has STANDARD RECOVERY RECTIFIER.

Manufacturers : Digitron Semiconductors

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1N3670A-1N3673A High-reliability discrete products and engineering services since 1977 STANDARD RECOVERY RECTIFIER FEATURES  Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.  Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix. ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified) Characteristics Symbol 1N3670 1N3671 1N3672 Repetitive peak reverse voltage VRRM 700V 800V 900V Maximum RMS reverse voltage VRMS 490V 560V 630V Non-repetitive peak reverse voltage VRSM 900V 1000V 1100V Average forward current IF(AV) 12A Maximum surge current 230A 240A IFSM 275A 285A 1N3673 1000V 700V 1200V Maximum I2t for fusing I2t Maximum I2√t for [ ... ]

1N3671 PDF Datasheet Download