Zener Diode 5.1V 1W
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Circuits Electronics | Zener Diode -5.1 V | 2 EGP | View in store |
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Lowest price recorded: 2 EGP
About this product
This 5.1V Zener diode is rated for 1W total power dissipation and is used to create a reference voltage or to stabilize voltage in low-current circuits. It conducts in reverse breakdown at its nominal Zener voltage, clamping the voltage across it. It is useful for logic-level reference and over-voltage protection experiments.
Specifications
- Nominal Zener voltage (Vz)
- 5.1V
- Max regulator current (Izm)
- 0.178A
- Max reverse leakage current (Ir)
- 10µA
- Forward voltage drop (Vf)
- 1.2V
- Total power dissipation (Ptot)
- 1W
Frequently asked questions
What is the price of Zener Diode 5.1V 1W in Egypt?
Zener Diode 5.1V 1W currently costs 2 EGP in Egypt.
Where can I buy Zener Diode 5.1V 1W in Egypt?
Zener Diode 5.1V 1W is available from Circuits Electronics. Compare the offers above to find the best price.
How do I connect it as a voltage reference?
Connect the Zener in reverse bias, cathode (banded end) to the positive rail and anode to ground, with a series resistor between the supply and the cathode. Calculate the resistor with R = (Vin - 5.1V) / Iz, keeping Iz within the rated current.
Can it protect a 3.3V or 5V logic input?
A 5.1V Zener is not suitable for protecting 5V logic on its own, because it starts conducting near 5.1V and would be stressed by normal signal swings. For 3.3V logic protection, a lower-voltage Zener or a dedicated clamp is more appropriate.
