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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 | 1N4742 | 1 |
Power Dissipation
1.0 W
Derate above 50°C
6.67 mW/°C
Storage Temperature Range
-65.0 °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
Packaged Dimensions
0.2cm(Length) x 0.2cm(Width) x 6.0cm(Height)
Discover more
12V 1N5349B 5 Watt Zener Diode
CAT.NO: ZR1440
Available for delivery
3.3V 1N4728 1 Watt Zener Diode
CAT.NO: ZR1398
Available for delivery
3.6V 1N4729 1 Watt Zener Diode
CAT.NO: ZR1399
Available for delivery
3.9V 1N4730 1 Watt Zener Diode
CAT.NO: ZR1400
Available for delivery
4.3V 1N4731 1 Watt Zener Diode
CAT.NO: ZR1401
Available for delivery
4.7V 1N4732 1 Watt Zener Diode
CAT.NO: ZR1402
Available for delivery
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CAT.NO: TH2334
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1mm Duratech Solder - 200gm
CAT.NO: NS3010
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Third Hand PCB Holder Tool with 4 Clips and Magnifier
CAT.NO: TH1993
Available for delivery