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NTC0805J47K
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NTC0805J47K

Product Overview

NTC0805J47K belongs to the category of thermistors and is commonly used for temperature sensing and compensation in various electronic circuits. This component is characterized by its small size, high sensitivity to temperature changes, and compatibility with surface mount technology. It is typically packaged in a standard 0805 package and is available in various packaging quantities.

Basic Information

  • Category: Thermistor
  • Use: Temperature sensing and compensation
  • Characteristics: Small size, high sensitivity, surface mount technology compatibility
  • Package: 0805 package
  • Packaging/Quantity: Available in tape and reel packaging, quantities vary

Specifications

  • Resistance at 25°C: 47 kΩ
  • Tolerance: ±5%
  • Operating Temperature Range: -40°C to 125°C
  • Maximum Power Dissipation: 100 mW
  • Thermal Time Constant: 7 seconds

Detailed Pin Configuration

The NTC0805J47K thermistor has two terminals and follows the standard 0805 SMD package pinout configuration.

Functional Features

  • High sensitivity to temperature changes
  • Compact size for space-constrained applications
  • Compatibility with surface mount technology for easy integration into PCBs

Advantages and Disadvantages

Advantages

  • Small size allows for placement in compact designs
  • High sensitivity enables precise temperature measurements
  • Surface mount technology compatibility simplifies assembly processes

Disadvantages

  • Limited power dissipation capability compared to larger thermistors
  • Tolerance of ±5% may require additional calibration in some applications

Working Principles

NTC0805J47K operates based on the principle of negative temperature coefficient (NTC), where its resistance decreases as the temperature increases. This characteristic makes it suitable for temperature sensing and compensation in electronic circuits.

Detailed Application Field Plans

The NTC0805J47K thermistor finds application in various fields, including: - Temperature monitoring in consumer electronics - Thermal management in automotive systems - Temperature compensation in industrial control systems - Medical devices for temperature sensing

Detailed and Complete Alternative Models

Some alternative models to NTC0805J47K include: - NTC0603J10K: Smaller form factor for space-constrained designs - NTC1206J100K: Higher power dissipation for more demanding applications - NTC0805J47M: Tighter tolerance for increased precision

In conclusion, NTC0805J47K is a versatile thermistor suitable for temperature sensing and compensation in diverse electronic applications. Its small size, high sensitivity, and compatibility with surface mount technology make it an ideal choice for compact and sensitive temperature measurement requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av NTC0805J47K i tekniska lösningar

  1. What is the NTC0805J47K used for?

    • The NTC0805J47K is a thermistor commonly used for temperature sensing and compensation in various electronic circuits.

  2. What are the typical applications of NTC0805J47K?

    • It is commonly used in temperature measurement, temperature control, overcurrent protection, and inrush current limiting circuits.

  3. What is the resistance value of NTC0805J47K at 25°C?

    • The resistance of NTC0805J47K at 25°C is 47 kΩ.

  4. How does NTC0805J47K behave with temperature changes?

    • NTC0805J47K exhibits a negative temperature coefficient, meaning its resistance decreases as the temperature increases.

  5. What is the maximum operating temperature for NTC0805J47K?

    • The maximum operating temperature for NTC0805J47K is typically around 125°C.

  6. Can NTC0805J47K be used for temperature compensation in power supplies?

    • Yes, NTC0805J47K can be used to compensate for the change in output voltage due to temperature variations in power supply circuits.

  7. Is NTC0805J47K suitable for battery pack protection?

    • Yes, NTC0805J47K can be used in battery pack protection circuits to limit the inrush current during charging.

  8. What are the tolerance and power rating of NTC0805J47K?

    • NTC0805J47K typically has a tolerance of ±5% and a power rating of 1/8 W.

  9. Can NTC0805J47K be used in automotive applications?

    • Yes, NTC0805J47K is suitable for automotive applications such as temperature sensing in engine control systems and climate control.

  10. Are there any precautions to consider when using NTC0805J47K in a circuit?

    • It's important to ensure proper thermal management and avoid exceeding the maximum power dissipation to prevent damage to the thermistor.