2N493 PDF File ( Datasheet )

2N489(A,B)-2N494(A,B) High-reliability discrete products and engineering services since 1977 SILICON UNIJUNCTION TRANSISTORS 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. Stable operation over wide temperature range Low leakage current Low peak point current Guaranteed minimum pulse voltage MAXIMUM RATINGS Ratin