This part is a kind of semiconductor called 2N1595.

Function of this product has (2N1595 - 2N1599) SILICON THYRISTOR.

Manufacturers : Comset Semiconductors

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Some of the text within the PDF file :

2N1595 – 2N1596 – 2N1597 – 2N1598 – 2N1599 SILICON THYRISTORS Industrial-type, low-current silicon controlled rectifiers in a three-lead package ideal for printed-circuit applications Current handling capability of 1.6 amperes at junction temperetures to 125°C. Compliance to RoHS. MAXIMUM RATINGS (*) TJ=125°C unless otherwise noted Symbol VRSM(REP) IT(RMS) ITSM PGM PG(AV) IGM VGFM VGRM TJ TSTG Ratings Peak reverse blocking voltage (*) Forward Current RMS (all conduction angles) Peak Surge Current (One Cycle, 60Hz, TJ=-65 to+125°C) Peak Gate Power – Forward Average Gate Power - Forward Peak Gate Current – Forward Peak Gate Voltage - Forward Peak Gate Voltage - Reverse Operating Junction Temperature Range Storage Temperature Range 2N1595 50 2N1596 100 2N1597 200 1.6 2N1 [ ... ]

2N1595 PDF Datasheet Download