500mW SILICON ZENER DIODES
1N957B-1N992B
High-reliability discrete products and engineering services since 1977
500 mW SILICON ZENER DIODES
FEAT...
Description
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: 1.3 volts maximum (1N985-1N992B) 260°C for 10 s maximum
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
Part number
Nominal zener voltage
(2)
Zener test current
Maximum zener ...
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