12 V – 1/2W Zener

**Description:**

A Zener diode is a type of semiconductor diode that exhibits a sharp reverse breakdown voltage, known as the Zener voltage. When the reverse voltage across the diode exceeds the Zener voltage, the diode breaks down and conducts current in the reverse direction.

**Specification of Zener Diode 12 V – 1/2W:**

**Electrical Characteristics:**

* Zener Voltage: 12 V
* Zener Impedance: 10 Ω (typical)
* Reverse Leakage Current: 100 µA (maximum at 12 V)
* Power Dissipation: 500 mW (1/2W)

**Physical Characteristics:**

* Package: DO-35
* Body Diameter: 3.5 mm
* Body Length: 5.5 mm
* Lead Spacing: 2.54 mm

**Applications:**

* Voltage regulation
* Voltage reference
* Overvoltage protection
* Reverse polarity protection

**Additional Features:**

* Low dynamic impedance
* Fast response time
* High stability
* RoHS compliant

**Notes:**

* The Zener voltage is temperature dependent and may vary slightly with temperature.
* The power dissipation rating is based on a case temperature of 25°C.
* The diode should be mounted on a heat sink if the power dissipation exceeds the specified rating.