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2N493B - SILICON UNIJUNCTION TRANSISTORS

Download the 2N493B datasheet PDF. This datasheet also covers the 2N489 variant, as both devices belong to the same silicon unijunction transistors family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (2N489-Digitron.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number 2N493B
Manufacturer Digitron
File Size 1.45 MB
Description SILICON UNIJUNCTION TRANSISTORS
Datasheet download datasheet 2N493B Datasheet

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Other Datasheets by Digitron

Part Number Description
2N493 SILICON UNIJUNCTION TRANSISTORS
2N493A SILICON UNIJUNCTION TRANSISTORS
2N490 SILICON UNIJUNCTION TRANSISTORS
2N490A SILICON UNIJUNCTION TRANSISTORS
2N490B SILICON UNIJUNCTION TRANSISTORS

Full PDF Text Transcription

Click to expand full text
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.
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