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1N4739 Zener Diode (Pack of 2)

SKU: LLTWXJD4DO
The 1N4739 Zener Diode is a high-quality voltage regulation diode designed to provide a stable 9.1V Zener voltage in electronic circuits. With a 1-Watt power dissipation rating, it is widely used for voltage regulation, reference voltage generation, and protection against voltage fluctuations and surges. Operating in reverse bias mode, the diode maintains a nearly constant voltage across its terminals once...
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Specifications

Specifications:

Part Number: 1N4739
Zener Voltage (Vz): 9.1V
Power Dissipation: 1W
Package Type: DO-41
Mounting Type: Through-Hole
Polarity: Cathode identified by a band marking
Operating Mode: Reverse Breakdown (Zener Region)

Additional Resources

1N4739.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 1N4739 Zener Diode is a high-quality voltage regulation diode designed to provide a stable 9.1V Zener voltage in electronic circuits. With a 1-Watt power dissipation rating, it is widely used for voltage regulation, reference voltage generation, and protection against voltage fluctuations and surges. Operating in reverse bias mode, the diode maintains a nearly constant voltage across its terminals once the Zener breakdown voltage is reached, ensuring reliable and stable circuit performance.

Housed in the industry-standard DO-41 axial-lead package, the 1N4739 offers excellent durability and easy through-hole mounting. It is commonly used in power supplies, industrial automation systems, communication equipment, embedded electronics, and various electronic projects requiring dependable voltage control.

Key Features

  • Stable 9.1V Zener breakdown voltage
  • 1W power dissipation capability
  • Excellent voltage regulation characteristics
  • Reliable overvoltage and surge protection
  • Standard DO-41 through-hole package
  • Durable and long-lasting construction
  • Easy installation and PCB mounting
  • 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
  • Microcontroller and embedded system projects
  • Consumer electronics and industrial control equipment