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1N4740 Zener Diode (Pack of 2)

SKU: KAD55BDN27
The 1N4740 Zener Diode is a dependable voltage regulation diode designed to provide a stable 10V Zener voltage for a wide range of electronic applications. With a 1-Watt power dissipation rating, it is commonly used for voltage stabilization, reference voltage generation, and protection against voltage surges. When operated in reverse bias mode, the diode maintains a nearly constant voltage across...
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Specifications

Specifications:

Part Number: 1N4740
Zener Voltage (Vz): 10V
Power Dissipation: 1W
Package Type: DO-41
Mounting Type: Through-Hole
Polarity: Cathode marked with a band
Operating Mode: Reverse Breakdown (Zener Region)

Additional Resources

1N4740.PDF

FAQ

1. What is a Zener diode?

A Zener diode is a special type of semiconductor diode designed to operate in reverse bias mode and maintain a stable voltage across its terminals, making it useful for voltage regulation and protection circuits.

2. What are the common applications of a Zener diode?

Zener diodes are commonly used for voltage regulation, voltage reference generation, overvoltage protection, clipping circuits, and power supply stabilization in electronic devices.

3. How does a Zener diode regulate voltage?

When the reverse voltage applied to a Zener diode reaches its Zener breakdown voltage, the diode conducts current while maintaining a nearly constant voltage across itself, helping regulate the output voltage.

4. Can a Zener diode be used for circuit protection?

Yes, Zener diodes are widely used to protect sensitive electronic components from voltage spikes and overvoltage conditions by limiting the voltage to a safe level.

5. What should be considered when selecting a Zener diode?

Important factors include the Zener voltage rating, power dissipation capability, package type, tolerance, and the current requirements of the intended application.

View full product details

The 1N4740 Zener Diode is a dependable voltage regulation diode designed to provide a stable 10V Zener voltage for a wide range of electronic applications. With a 1-Watt power dissipation rating, it is commonly used for voltage stabilization, reference voltage generation, and protection against voltage surges. When operated in reverse bias mode, the diode maintains a nearly constant voltage across its terminals after reaching its breakdown voltage, ensuring reliable circuit operation and component protection.

Manufactured in the rugged DO-41 axial-lead package, the 1N4740 offers excellent mechanical strength, easy through-hole mounting, and long-term reliability. It is widely used in power supplies, industrial control systems, communication equipment, embedded electronics, and general-purpose electronic circuits.

Key Features

  • Stable 10V Zener breakdown voltage
  • 1W power dissipation capability
  • Excellent voltage regulation characteristics
  • Reliable protection against overvoltage conditions
  • Standard DO-41 axial package
  • Through-hole mounting for easy installation
  • Durable construction and long service life
  • Suitable for commercial, industrial, and hobbyist applications

Applications

  • Voltage regulation and stabilization circuits
  • Reference voltage generation
  • Power supply protection
  • Overvoltage and surge suppression
  • Signal clipping and clamping circuits
  • Microcontroller and embedded system projects
  • Consumer electronics and industrial equipment