12V 0.5 Watt Zener Diode

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The 12V 0.5 Watt Zener Diode is a versatile and reliable voltage regulation component designed to protect sensitive circuits from voltage spikes or fluctuations. This Zener diode has a breakdown voltage of 12V and a power dissipation rating of 0.5 watts, making it suitable for low-power voltage regulation and over-voltage protection applications. It is ideal for use in Arduino projects, power supplies, or any system requiring precise voltage clamping.

How It Works:

The 12V Zener Diode operates in reverse bias mode, where it maintains a stable voltage of 12V across itself when the reverse voltage exceeds its Zener breakdown voltage (12V). When the reverse voltage surpasses this threshold, the diode conducts current, limiting the voltage across sensitive components to a safe 12V. With a power dissipation rating of 0.5 watts, it is designed for circuits that do not exceed this power threshold.

Typical Use Cases:

Voltage regulation in low-power electronic circuits
Surge protection for sensitive components like microcontrollers or transistors
Power supply design for low-power devices
Clipping or limiting signal voltages in analog circuits
Protection in battery-operated or portable electronic systems

Limitations:

Maximum power dissipation of 0.5W — exceeding this can cause thermal failure, so proper heat management is important.
Not suitable for high-current or high-power applications.
Tolerance of the Zener voltage may vary (typically ±5%).
Requires correct circuit design to avoid exceeding the power dissipation rating.

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