1N974B
1N974B is 500mW SILICON ZENER DIODES manufactured by Digitron Semiconductors.
- Part of the 1N957B comparator family.
- Part of the 1N957B comparator family.
1N957B-1N992B
High-reliability discrete products and engineering services since 1977
500 m W 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-Ro HS (Sn/Pb plating), standard, and as Ro HS 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 m A: 1.1 volts maximum (1N957B-1N985B) @ 200m A: 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...
