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30V 1N4751 1 Watt Zener Diode

SKU ZR1430
Original price $1.18 - Original price $1.18
Original price $1.18
$1.95
$1.95 - $1.95
Current price $1.95

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

30V

1N4751

1


Handy Tip What is a Zener Diode and How Does it Work?

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. See diagram: When the Zener starts to draw current, this has the effect of regulating the positive (+) voltage. Note: As the Zener draws current, this will turn into heat. The Zener therefore has a wattage rating (as well as its Zener voltage rating) this may not be exceeded. Jaycar carries a range of Zener diodes from 3.3V to 75V.Fig 1. As positive (+) voltage climbs up to 12 volts the 12V Zener starts to conduct, drawing current

Packaged Dimensions


Packaged Volume
2.4E-4l
Packaged Weight
0.001kg
Packaged Length
6cm
Packaged Width
0.2cm
Packaged Height
0.2cm

Zener Diodes


Power Dissipation
1W
Derate above 50°C
6.67mW/°C
Storage Temperature Range
-65°C, 200°C
Operating Junction Temperate
200°C
Thermal resistance junction to lead
53.5°C/W
Thermal resistance junction to ambient
100°C/W
Lead temperature (1/16" from case for 10 seconds)
230°C
Surge power
10W