Diodes Incorporated
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
1N4742A-T
詳細を表示 DataSheets

1N4742A-T

Product Overview

Category

The 1N4742A-T belongs to the category of Zener diodes.

Use

It is commonly used for voltage regulation and voltage reference applications.

Characteristics

  • Zener voltage: 12V
  • Power dissipation: 1.0W
  • Package: DO-41
  • Operating temperature range: -65°C to +200°C
  • Packaging/Quantity: Tape & Reel (1000 pieces)

Specifications

  • Zener voltage: 12V
  • Power dissipation: 1.0W
  • Maximum forward voltage: 1.5V
  • Reverse current: 5.0µA
  • Temperature coefficient: 0.05%/°C

Detailed Pin Configuration

The 1N4742A-T has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Precise voltage regulation
  • Low reverse leakage current
  • High reliability and stability

Advantages

  • Provides stable voltage output
  • Wide operating temperature range
  • Compact and easy to use

Disadvantages

  • Limited power dissipation capability
  • Sensitive to temperature variations

Working Principles

The 1N4742A-T operates based on the Zener effect, where it maintains a constant voltage across its terminals when reverse biased.

Detailed Application Field Plans

  • Voltage regulation in power supplies
  • Overvoltage protection in electronic circuits
  • Voltage reference in instrumentation

Detailed and Complete Alternative Models

  • 1N4733A-T (5.1V Zener voltage)
  • 1N4736A-T (6.2V Zener voltage)
  • 1N4744A-T (15V Zener voltage)

This comprehensive entry provides detailed information about the 1N4742A-T Zener diode, including its product overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.

技術ソリューションにおける 1N4742A-T の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the 1N4742A-T?

    • The 1N4742A-T is a 1W Zener diode with a voltage rating of 12V.

  2. What are the typical applications of the 1N4742A-T?

    • It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.

  3. What is the maximum power dissipation of the 1N4742A-T?

    • The maximum power dissipation is 1W.

  4. What is the voltage tolerance of the 1N4742A-T?

    • The voltage tolerance is typically +/-5%.

  5. What is the operating temperature range of the 1N4742A-T?

    • The operating temperature range is usually -65°C to +200°C.

  6. Can the 1N4742A-T be used for reverse polarity protection?

    • Yes, it can be used for reverse polarity protection due to its Zener diode characteristics.

  7. How does the 1N4742A-T behave in transient voltage suppression applications?

    • It can effectively suppress transient voltages by conducting when the voltage exceeds its breakdown voltage.

  8. Is the 1N4742A-T suitable for low voltage regulation?

    • Yes, it is suitable for low voltage regulation due to its stable breakdown voltage.

  9. What are some common alternatives to the 1N4742A-T?

    • Alternatives include other Zener diodes with similar voltage ratings such as 1N4742, BZX55C12, or BZT52C12.

  10. Are there any specific layout considerations when using the 1N4742A-T in a circuit?

    • It is important to minimize lead lengths and ensure proper heat sinking to maintain the diode's performance and reliability.