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2N490B Dataheets PDF



Part Number 2N490B
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Description SILICON UNIJUNCTION TRANSISTORS
Datasheet 2N490B Datasheet2N490B Datasheet (PDF)

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 Rating Total.

  2N490B   2N490B


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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 Rating Total RMS Power Dissipation (Unstabilized) Total RMS Power Dissipation (Stabilized) RMS Emitter Current Peak Emitter Current (TJ = 150°C) Emitter Reverse Voltage (TJ = 150°C) Operating Temperature Range Operating Temperature Range (Stabilized) Storage Temperature Range Value 450mW 600mW 70mA 2A 60 V -65° to +140°C -65° to +175°C -65° to +175°C ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified) Intrinsic standoff ratio (1) Interbase resistance (2) M.


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