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2N491 Datasheet Silicon Unijunction Transistors

Manufacturer: Digitron

Overview: 2N489(A,B)-2N494(A,B) High-reliability discrete products and engineering services since 1977 SILICON UNIJUNCTION.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number 2N491
Manufacturer Digitron
File Size 1.45 MB
Description SILICON UNIJUNCTION TRANSISTORS
Datasheet 2N491 2N489 Datasheet (PDF)

Key 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.

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