(Pack of 5) 12V 1/2W 1N4742A Zener Diode

(Pack of 5) 12V 1/2W 1N4742A Zener Diode 

The 12V 1/2W Zener Diode is a compact voltage-regulation component designed to maintain a stable 12-volt reference when reverse-biased. With a 0.5W (½ Watt) power dissipation rating, this diode is ideal for low- to medium-power circuits such as voltage references, signal conditioning, and over-voltage protection. Its DO-35 axial package makes it suitable for breadboards, PCBs, and general electronic applications.

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Features

• Zener Voltage: 12V
• Power Rating: 0.5W (½ Watt)
• Package: DO-35 axial lead package
• Low dynamic impedance for stable performance
• Good temperature and voltage stability
• Fast voltage clamping response
• Reliable operation with long service life
• Supplied as: Pack of 5 pieces

Applications

• Voltage Regulation: Maintains a stable 12V reference for analog and digital circuits
• Over-Voltage Protection: Clamps excessive voltage to safeguard components
• Reference Voltage Circuits: Used for precise voltage references in instrumentation
• Signal Clipping & Shaping: Prevents signals from exceeding predefined levels
• Low-Power Power Supplies: Helps regulate voltage in compact supply circuits
• DIY Projects & Prototyping: Widely used for educational and hobby electronics

Zener Diode Datasheet (2)