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1N4747P/TR12
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1N4747P/TR12

Product Overview

Category

The 1N4747P/TR12 belongs to the category of semiconductor diodes.

Use

It is commonly used as a voltage regulator in electronic circuits.

Characteristics

  • Forward Voltage: 1.0V
  • Reverse Voltage: 20V
  • Power Dissipation: 1W
  • Operating Temperature: -65°C to +200°C

Package

The 1N4747P/TR12 is typically available in a DO-41 package.

Essence

This diode serves as a crucial component in regulating voltage levels within electronic devices.

Packaging/Quantity

It is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Manufacturer: Multiple manufacturers
  • Part Number: 1N4747P/TR12
  • Type: Zener Diode
  • Voltage Tolerance: ±5%
  • Zener Voltage: 20V
  • Maximum Reverse Leakage Current: 5μA
  • Maximum Voltage Regulation: 50mA

Detailed Pin Configuration

The 1N4747P/TR12 has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage Regulation: The diode maintains a constant output voltage despite variations in input voltage.
  • Overvoltage Protection: It protects sensitive components by limiting the voltage across them.

Advantages and Disadvantages

Advantages

  • Precise Voltage Regulation
  • Compact Size
  • Low Cost

Disadvantages

  • Limited Current Handling Capacity
  • Sensitivity to Temperature Changes

Working Principles

The 1N4747P/TR12 operates based on the principle of the Zener effect, where it allows current to flow in reverse bias when the voltage reaches its breakdown voltage, effectively regulating the output voltage.

Detailed Application Field Plans

Voltage Regulation

The diode is widely used in power supplies, voltage regulators, and battery charging circuits to maintain stable output voltages.

Overvoltage Protection

It is employed in electronic devices to protect sensitive components from damage due to overvoltage conditions.

Detailed and Complete Alternative Models

  • 1N4733A
  • 1N4734A
  • 1N4735A
  • 1N4736A
  • 1N4737A

These alternative models offer similar voltage regulation capabilities and can be used interchangeably based on specific design requirements.

In conclusion, the 1N4747P/TR12 Zener diode plays a critical role in voltage regulation and overvoltage protection within electronic circuits. Its precise characteristics and functional features make it a valuable component in various applications, despite its limitations in current handling capacity and sensitivity to temperature changes. Additionally, designers can consider alternative models with similar specifications for flexibility in their circuit designs.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4747P/TR12 en soluciones técnicas

  1. What is the 1N4747P/TR12 diode used for?

    • The 1N4747P/TR12 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the voltage rating of the 1N4747P/TR12 diode?

    • The 1N4747P/TR12 has a nominal voltage of 20 volts, making it suitable for applications requiring a stable 20V reference voltage.

  3. How does the 1N4747P/TR12 diode regulate voltage?

    • The 1N4747P/TR12 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals, effectively regulating the output voltage.

  4. Can the 1N4747P/TR12 be used for overvoltage protection?

    • Yes, the 1N4747P/TR12 can be employed to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.

  5. What are the typical applications of the 1N4747P/TR12 diode?

    • Common applications include voltage regulation in power supplies, voltage reference circuits, and as a protective element in various electronic systems.

  6. What is the maximum power dissipation of the 1N4747P/TR12 diode?

    • The 1N4747P/TR12 has a maximum power dissipation of 1 watt, allowing it to handle moderate power levels in circuit designs.

  7. Is the 1N4747P/TR12 suitable for high-frequency applications?

    • While the 1N4747P/TR12 can function at moderate frequencies, it may not be ideal for high-speed or RF applications due to its inherent capacitance and response time.

  8. Does the 1N4747P/TR12 require a heatsink in certain applications?

    • In high-power or high-temperature environments, a heatsink may be necessary to ensure the 1N4747P/TR12 operates within its specified temperature limits.

  9. What are the key parameters to consider when designing with the 1N4747P/TR12?

    • Key parameters include the maximum current, voltage tolerance, temperature coefficient, and thermal resistance to ensure proper performance in the application.

  10. Are there any common failure modes associated with the 1N4747P/TR12?

    • Common failure modes include exceeding the maximum power dissipation, overcurrent conditions, and exposure to voltage transients beyond its ratings. Proper design and protection measures can mitigate these risks.