Microsemi Corporation
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1N4738P/TR12
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1N4738P/TR12 - Semiconductor Diode

Basic Information Overview

  • Category: Semiconductor Diode
  • Use: Voltage regulation and rectification
  • Characteristics: Zener diode, low leakage current, high reliability
  • Package: DO-41 package
  • Essence: Regulates voltage in electronic circuits
  • Packaging/Quantity: Typically available in reels of 2000 units

Specifications

  • Voltage: 8.2V
  • Power Dissipation: 1.3W
  • Tolerance: ±5%
  • Operating Temperature: -65°C to +200°C

Detailed Pin Configuration

The 1N4738P/TR12 has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

  • Zener diode operation for precise voltage regulation
  • Low reverse leakage current for minimal power loss
  • High reliability and stability over a wide temperature range

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Low leakage current
  • High reliability
  • Wide operating temperature range

Disadvantages

  • Limited voltage options
  • Sensitive to overcurrent conditions

Working Principles

The 1N4738P/TR12 operates based on the Zener effect, where it maintains a constant voltage across its terminals when reverse biased. This allows it to regulate voltage in electronic circuits by shunting excess current when the voltage exceeds its rated value.

Detailed Application Field Plans

The 1N4738P/TR12 is commonly used in various electronic applications such as: - Voltage regulation in power supplies - Overvoltage protection in circuits - Signal clamping and limiting

Detailed and Complete Alternative Models

Some alternative models to the 1N4738P/TR12 include: - 1N4739P/TR12 (9.1V Zener voltage) - 1N4740P/TR12 (10V Zener voltage) - BZX55C8V2 (8.2V Zener voltage)

This completes the entry for the 1N4738P/TR12 semiconductor diode, covering its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

기술 솔루션에 1N4738P/TR12 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the 1N4738P/TR12?

    • The 1N4738P/TR12 is a Zener diode with a voltage rating of 8.2V and a power rating of 1W.

  2. How does the 1N4738P/TR12 work?

    • The 1N4738P/TR12 works by allowing current to flow in the forward direction like a regular diode, but it also permits it to flow in the reverse direction when the voltage reaches its breakdown voltage.

  3. What are the typical applications of the 1N4738P/TR12?

    • The 1N4738P/TR12 is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.

  4. What are the key specifications of the 1N4738P/TR12?

    • The key specifications include a voltage rating of 8.2V, a power rating of 1W, and a tolerance of ±5%.

  5. Can the 1N4738P/TR12 be used for voltage regulation?

    • Yes, the 1N4738P/TR12 can be used for simple voltage regulation in low-power applications.

  6. How is the 1N4738P/TR12 different from other Zener diodes?

    • The 1N4738P/TR12 differs in its specific voltage rating and power handling capabilities compared to other Zener diodes.

  7. What are the considerations for heat dissipation when using the 1N4738P/TR12?

    • Heat dissipation considerations include ensuring that the diode does not exceed its maximum power rating to prevent overheating.

  8. Can the 1N4738P/TR12 be used in automotive electronics?

    • Yes, the 1N4738P/TR12 can be used in automotive electronics for voltage regulation and protection purposes.

  9. Are there any alternative components to the 1N4738P/TR12 with similar characteristics?

    • Yes, other Zener diodes with comparable voltage ratings and power handling capabilities can serve as alternatives.

  10. What are the typical failure modes of the 1N4738P/TR12?

    • Typical failure modes include exceeding the maximum power rating, thermal runaway, and voltage spikes causing damage. Regular testing and proper circuit design can help mitigate these risks.