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NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20)
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NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20)
NTE can provide a zener diode for most all of your application needs.
NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20)
Item #: 130123704

NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20)

85% of respondents would recommend this to a friend

Item #: 130123704

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What Stands Out

High Power Rating
This 1W Zener diode delivers reliable performance under load, ensuring efficiency in voltage regulation for various electronic applications, reducing the risk of overheating or failure.
Accurate Tolerance
With a precise 5% tolerance, the NTE 1N4742A ensures consistent voltage levels, making it an ideal choice for applications needing stable performance and reduced variations in output.
Bulk Packaging
Packaged in sets of 20, this product offers excellent value for hobbyists and professionals alike, ensuring you have adequate stock for multiple projects without frequent reordering.

Product Details

Shop NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20) online at a best price in Sierra Leone. B01JD5CCR6

Who Should Buy?

Suitable For
  • Hobbyist Electronics

    Perfect for hobbyists looking to prototype circuits with voltage regulation and stability at an affordable price.

  • Educational Use

    Ideal for students learning about circuit design and Zener diode applications in electronics classes and laboratories.

  • Low-Power Applications

    Great for low-power circuits needing a reliable voltage reference or regulation within the 12V range.

Not Suitable For
  • High-Power Circuits

    Not suitable for high-power applications requiring diodes that can handle more than 1 watt consistently.

Product Description

NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20)

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Customer Questions & Answers

  • Question: What is the function of the NTE Electronics 1N4742A Zener Diode?

    Answer: The NTE Electronics 1N4742A Zener Diode is primarily used for voltage regulation in various electronic circuits. Its role is to maintain a stable output voltage across its terminals despite variations in input voltage or load conditions. This diode can be employed in applications like power supplies, surge protectors, and voltage reference circuits, ensuring consistent performance and protection for sensitive components.
  • Question: What is the significance of the 12V rating on the NTE 1N4742A Zener Diode?

    Answer: The 12V rating indicates that the NTE 1N4742A Zener Diode will maintain a constant voltage of approximately 12 volts when reverse-biased. This characteristic is crucial for creating a stable voltage reference in circuits. For instance, in a voltage regulation application, this diode can be used to protect other components by preventing the voltage from exceeding the 12V threshold, thus enhancing circuit reliability.
  • Question: What is the tolerance of 5% in the context of the NTE 1N4742A Zener Diode?

    Answer: The 5% tolerance means that the actual breakdown voltage of the NTE 1N4742A Zener Diode can vary by ±5% from the nominal 12V specification. This tolerance range is essential for applications requiring precise voltage levels. For example, in critical timing circuits or reference design applications, users must consider this tolerance to ensure the diode fits well within their specific voltage requirements.
  • Question: Can I use the NTE 1N4742A Zener Diode for temperature compensation?

    Answer: Yes, the NTE 1N4742A Zener Diode can be used in temperature compensation circuits. Zener diodes, when properly implemented, help stabilize the voltage output as a function of temperature variations. This characteristic is particularly useful in precision applications where operational stability is crucial, such as in thermistors or other temperature-sensitive devices that require accurate voltage outputs.
  • Question: How do I connect the NTE 1N4742A Zener Diode in a circuit?

    Answer: To connect the NTE 1N4742A Zener Diode, connect the cathode (marked with a line) to the positive side of your circuit and the anode to the ground or the negative side. This configuration allows the diode to regulate the voltage, conducting in reverse once the breakdown voltage is reached. It’s commonly used in voltage clamping and power supply filtering scenarios, making it an essential component in electronic design.
  • Question: What is the power rating of the NTE 1N4742A Zener Diode?

    Answer: The NTE 1N4742A Zener Diode has a power rating of 1 watt. This rating indicates its ability to dissipate heat without failure under maximum load conditions. Users should ensure that the diode operates within this power limit to prevent overheating. Specifically, in voltage regulation applications, keeping the power dissipation lower than 1 watt contributes to the longevity and efficiency of the circuit.
  • Question: Are there any special handling instructions for the NTE 1N4742A Zener Diode?

    Answer: When handling the NTE 1N4742A Zener Diode, it’s recommended to avoid static discharge and excessive heat. ESD precautions such as wearing wrist straps or using anti-static mats can help protect the diode. Additionally, when soldering, minimize exposure to high temperatures to maintain the integrity of the diode. Proper handling ensures that the diode performs reliably in its intended application.
  • Question: Can I use multiple NTE 1N4742A Zener Diodes in parallel?

    Answer: Using multiple NTE 1N4742A Zener Diodes in parallel is possible, primarily to distribute the load and reduce the overall voltage drop. However, it's essential to ensure that they are well-matched to avoid unequal sharing of current. This setup is particularly useful in high-power applications where a single diode might not sufficiently handle the load, thus enhancing durability and performance across the circuit.
  • Question: What are some common applications for the NTE 1N4742A Zener Diode?

    Answer: The NTE 1N4742A Zener Diode is versatile, with common applications including voltage regulation in power supply circuits, surge protection for sensitive devices, and providing reference voltage in analog circuits. Its ability to maintain a constant voltage makes it invaluable in various electronic design projects, especially for hobbyists and engineers working on prototyping or production-grade electronics.
  • Question: Where can I buy NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20) in Sierra Leone?

    Answer: You can buy the NTE Electronics 1N4742A Zener Diode, 1W, 5% Tolerance, 12V (Pack of 20) on Ubuy, which offers a reliable platform for purchasing electronic components in Sierra Leone. They provide a user-friendly shopping experience and a wide selection of electronic parts to support your projects.

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Features & Benefits

  • Wide range of zener voltage from 2.4V to 200V.
  • Power ratings available from 1/2 watt up to 50 watts.
  • Options for both axial lead and stud mount types.
  • Includes 300mW surface mount types.
  • Features low cost and low zener impedance.
  • Excellent clamping and easy to clean with solvents.

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