A Zener diode works like a normal diode in the FORWARD direction, but when voltage is applied in the REVERSE direction it does something really useful. At a specified reverse voltage, it starts to conduct. In other words, if you apply, say 12V (for a 12V Zener) across the diode it will start to conduct current. When the Zener starts to draw current this has the effect of regulating the positive (+) voltage. Jaycar carries a range of Zener diodes from 3.3V to 75V.
Features:
| VOLTS | TYPE | WATTS |
12V | 1N5349B | B |
Power Dissipation:1.0 W
Derate above 50°C:6.67 mW/°C
Storage Temperature Range:-65.0°C,200.0°C
Operating Junction Temperate:200.0 °C
Thermal resistance junction to lead:53.5 °C/W
Thermal resistance junction to ambient:100.0 °C/W
Lead temperature (1/16" from case for 10 seconds):230.0 °C
Surge power:10.0 W
12V 1N5349B 5 Watt Zener Diode
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$1.75
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