1N990 manual: 0.5W, silicon zener diode. Zener voltage 160V. Test current 0.80mA. +-20% tolerance.

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1N990 Datasheet and 1N990 manual

Manufacturer : JGD

Packing : DO-35

Pins : 2

Temperature : Min -55 °C | Max 175 °C

Size : 203 KB

Application : 0.5W, silicon zener diode. Zener voltage 160V. Test current 0.80mA. +-20% tolerance.