1N4749 Zener Diode (Pack of 2)

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The 1N4749 Zener Diode is a high-quality voltage regulation diode designed to provide a stable 24V Zener voltage in electronic circuits. With a 1-Watt power dissipation rating, it is commonly used for voltage stabilization, reference voltage generation, and protection against overvoltage conditions. When operated in reverse bias mode, the diode maintains a nearly constant voltage across its terminals once the...
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The 1N4749 Zener Diode is a high-quality voltage regulation diode designed to provide a stable 24V Zener voltage in electronic circuits. With a 1-Watt power dissipation rating, it is commonly used for voltage stabilization, reference voltage generation, and protection against overvoltage conditions. When operated in reverse bias mode, the diode maintains a nearly constant voltage across its terminals once the Zener breakdown voltage is reached, ensuring reliable and consistent circuit performance.

Encased in the durable DO-41 axial-lead package, the 1N4749 offers excellent mechanical strength, easy through-hole installation, and long-term reliability. It is widely used in power supplies, industrial control systems, communication equipment, instrumentation, embedded electronics, and general-purpose electronic applications requiring dependable voltage regulation.

Key Features

  • Stable 24V Zener breakdown voltage
  • 1W power dissipation capability
  • Excellent voltage regulation performance
  • Reliable protection against voltage spikes and surges
  • Standard DO-41 axial-lead package
  • Through-hole mounting for easy PCB installation
  • Durable construction and long operational life
  • Suitable for commercial, industrial, and educational applications

Applications

  • Voltage regulation and stabilization circuits
  • Reference voltage generation
  • Power supply protection
  • Overvoltage suppression
  • Signal clipping and clamping circuits
  • Industrial automation and control systems
  • Microcontroller and embedded system projects
  • Consumer and communication electronics

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Part Number: 1N4749
Zener Voltage (Vz): 24V
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

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.

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