D817A is a silicon alloy diffused voltage regulator (Zener diode) of medium power, designed to protect electrical appliances against overvoltages. The package is the glass-to-metal type with rigid leads. In its operating mode, the voltage regulator package functions as the negative electrode (cathode).
D817A Performance Specifications:
Zener voltage range: 50.5... 61.5 V when Zener current is 50 mA
Zener voltage temperature coefficient: 0.14 %/оС
Zener voltage instability over time: ± 6 %
Direct forward voltage: 1.5 V at DC 500 mA
Differential resistance: 35 Ohm
Minimum permissible Zener current: 5mA
Maximum permissible Zener current: 90mA
Maximum permissible dissipation power: 5W
Operating temperature mode:-60... 130°
Weight of the voltage regulator complete with its accessories: less than 6g.
