This part is a kind of semiconductor called 2N6397.

Function of this product has SILICON CONTROLLED RECTIFIERS.

Manufacturers : Digitron Semiconductors

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2N6394-2N6399 High-reliability discrete products and engineering services since 1977 SILICON CONTROLLED RECTIFIERS 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. MAXIMUM RATINGS Rating Symbol Value Unit Peak repetitive forward and reverse blocking voltage(1) (TJ = -40 to +125°C, sine wave, 50 to 60 Hz, gate open) 2N6394 2N6395 2N6397 2N6399 VRRM, VDRM 50 100 Volts 400 800 On state RMS current (180° conduction angles, TC = 90°C) IT(RMS) 12 Amps Peak non-repetitive surge current (1/2 cycle, 60Hz, sine wave, TJ = 90°C) Circuit fusing considerations (t = 8.3ms) ITSM 100 Amps I2t 40 A2s Forward [ ... ]

2N6397 PDF Datasheet Download