1N4745A 16V 1W Zener Diode
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Prices updated: 13 Oct 2026
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About this product
The 1N4745A is a 1 W silicon Zener diode with a nominal Zener voltage of 16 V and ±5% tolerance. It is used as a voltage reference and for simple voltage clamping or regulation in low-power circuits, normally operated in reverse bias with a series resistor.
Specifications
- Zener voltage
- 16 V
- Power rating
- 1 W
- Tolerance
- ±5%
- Package
- DO-41 axial
Frequently asked questions
How is a 1N4745A Zener diode connected in a circuit?
It is connected in reverse bias, with the cathode toward the positive supply and the anode toward ground or the load. A series resistor is needed to limit the current through the diode.
Can it be used as a regulator for high-current loads?
It is intended for low-current reference and clamping. For higher currents, use a dedicated voltage regulator, and use the Zener only to set a reference voltage for it.
