1N990B - 500mW SILICON ZENER DIODES

Digitron Semiconductors

Download the 1N990B datasheet PDF. This datasheet also covers the 1N957B variant, as both devices belong to the same 500mw silicon zener diodes family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

1N990B 500mw silicon zener diodes by Digitron Semiconductors - Datasheet Preview — Note: The manufacturer provides a single datasheet file (1N957B-DigitronSemiconductors.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	1N990B
Manufacturer	Digitron Semiconductors
File Size	750.42 KB
Description	500mW SILICON ZENER DIODES
Datasheet	1N990B Datasheet

📁 Similar Datasheet

Part Number	Description	Manufacturer
1N990B	Silicon 500mW Zener Diodes	Microsemi
1N990B	SILICON ZENER DIODE	Central Semiconductor
1N990B	0.5W SILICON ZENER DIODES	Jinan Gude Electronic Device
1N990B-1	Silicon 500mW Zener Diodes	Microsemi
1N990BUR-1	Silicon MELF 500mW Zener Diodes	Microsemi

More Datasheets from Digitron Semiconductors

Part Number	Description
1N991B	500mW SILICON ZENER DIODES
1N992B	500mW SILICON ZENER DIODES
1N914	SWITCHING RECTIFIERS
1N914A	SWITCHING RECTIFIERS
1N914B	SWITCHING RECTIFIERS
1N916	SWITCHING RECTIFIERS
1N916A	SWITCHING RECTIFIERS
1N916B	SWITCHING RECTIFIERS
1N935	TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
1N935A	TEMPERATURE COMPENSATED ZENER REFERENCE DIODES

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text

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.