1N4742A, 12V Zener Diode, 1W, DO-41

The 1N4742A is a silicon Zener diode designed for stable 12V voltage regulation. With 1W of power handling and a Zener impedance of 30Ω, it's widely used in power supply circuits, voltage references, and transient protection. The DO-41 axial-leaded glass package allows for efficient thermal dissipation and easy integration in a variety of applications.

Key Features:

• Stable 12V Regulation: Tight voltage tolerance for consistent circuit protection or reference.
• 1W Power Dissipation: Ideal for low- to medium-power voltage regulation.
• Glass Passivated Junction: Ensures long-term reliability and thermal stability.
• Low Reverse Leakage: Enhances efficiency and accuracy in regulation circuits.
• Wide Temperature Range: Operates effectively in industrial and consumer environments.
• Axial Lead DO-41 Package: Easy through-hole mounting with robust mechanical strength.

Additional Specifications:

• Mounting Style: Through Hole
• Zener Voltage (Vz): 12V
• Power Dissipation: 1W
• Reverse Current (Ir): 5µA At 9.1V
• Zener Impedance (Zz): 30Ohm At 20.8Ma
• Operating Temperature Range: -65+200°C
• Dimensions: 5.2x2.7x25Mm