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1N991B - 500mW SILICON ZENER DIODES

This page provides the datasheet information for the 1N991B, a member of the 1N957B 500mW SILICON ZENER DIODES family.

Datasheet Summary

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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Datasheet preview – 1N991B

Datasheet Details

Part number 1N991B
Manufacturer DigitrON Semiconductors
File Size 750.42 KB
Description 500mW SILICON ZENER DIODES
Datasheet download datasheet 1N991B Datasheet
Additional preview pages of the 1N991B datasheet.

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Full PDF Text Transcription

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1N957B-1N992B High-reliability discrete products and engineering services since 1977 500 mW SILICON ZENER DIODES 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. MAXIMUM RATINGS Rating Operating temperature Storage temperature Thermal resistance Steady-state power Forward voltage Solder temperature Value -65°C to +175°C -65°C to +175°C 250°C/W junction to lead at 3/8” lead length from body, or 310°C/W junction to ambient when mounted on FR4 PC board(1) 0.5W at TL ≤ 50°C 3/8” from body or 0.48W at TA ≤ 25°C when mounted on FR4 PC board (1) @ 200 mA: 1.1 volts maximum (1N957B-1N985B) @ 200mA: 1.
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