Vishay Semiconductor Diodes Division
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SA43AHE3/73
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SA43AHE3/73

Product Overview

SA43AHE3/73 belongs to the category of semiconductor devices and is commonly used as a voltage regulator in electronic circuits. This product is known for its high efficiency, low dropout voltage, and excellent thermal performance. It is typically packaged in a small outline transistor (SOT-223) package and is available in various quantities.

Basic Information

  • Category: Semiconductor Devices
  • Use: Voltage Regulator
  • Characteristics: High Efficiency, Low Dropout Voltage, Excellent Thermal Performance
  • Package: SOT-223
  • Essence: Voltage Regulation
  • Packaging/Quantity: Various Quantities Available

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 1.25V to 16V
  • Output Current: 1A
  • Dropout Voltage: 0.6V at 1A
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The SA43AHE3/73 has three pins: 1. Input (VIN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (VOUT): Provides the regulated output voltage.

Functional Features

  • High Efficiency: Minimizes power loss and heat generation.
  • Low Dropout Voltage: Allows operation with small voltage differentials.
  • Thermal Performance: Ensures stable operation across temperature variations.

Advantages and Disadvantages

Advantages

  • High Efficiency
  • Low Dropout Voltage
  • Excellent Thermal Performance

Disadvantages

  • Limited Output Current Capacity
  • Restricted Input Voltage Range

Working Principles

The SA43AHE3/73 operates by comparing the output voltage to a reference voltage and adjusting the pass element to maintain a stable output. It utilizes feedback control to regulate the output voltage despite changes in input voltage and load conditions.

Detailed Application Field Plans

The SA43AHE3/73 is widely used in applications requiring stable and regulated voltage supplies, such as: - Battery-Powered Devices - Portable Electronics - Automotive Electronics - Industrial Control Systems

Detailed and Complete Alternative Models

Some alternative models to SA43AHE3/73 include: - LM317: Adjustable Voltage Regulator - LM1117: Low Dropout Regulator - LT1086: High Current Regulator

In conclusion, the SA43AHE3/73 is a versatile voltage regulator with high efficiency and excellent thermal performance, making it suitable for various electronic applications.

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技術ソリューションにおける SA43AHE3/73 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 SA43AHE3/73?

    • SA43AHE3/73 is a Schottky diode, commonly used in electronic circuits for its low forward voltage drop and fast switching capabilities.

  2. What are the typical applications of SA43AHE3/73?

    • SA43AHE3/73 is commonly used in voltage clamping, protection circuits, and high-frequency rectification applications.

  3. What is the maximum forward voltage of SA43AHE3/73?

    • The maximum forward voltage of SA43AHE3/73 is typically around 0.5V at a forward current of 1A.

  4. What is the reverse voltage rating of SA43AHE3/73?

    • SA43AHE3/73 has a reverse voltage rating of 30V, making it suitable for low to medium voltage applications.

  5. What is the maximum forward current of SA43AHE3/73?

    • The maximum forward current of SA43AHE3/73 is 4A, allowing it to handle moderate power levels.

  6. Can SA43AHE3/73 be used for high-frequency applications?

    • Yes, SA43AHE3/73 is suitable for high-frequency applications due to its fast switching characteristics.

  7. Is SA43AHE3/73 suitable for use in voltage regulator circuits?

    • Yes, SA43AHE3/73 can be used in voltage regulator circuits to provide overvoltage protection and voltage clamping.

  8. What is the thermal resistance of SA43AHE3/73?

    • The thermal resistance of SA43AHE3/73 is typically around 60°C/W, indicating its ability to dissipate heat effectively.

  9. Does SA43AHE3/73 have a small form factor?

    • Yes, SA43AHE3/73 is available in small surface mount packages, making it suitable for compact electronic designs.

  10. Are there any specific layout considerations when using SA43AHE3/73 in a circuit?

    • It is important to minimize the length of traces connected to SA43AHE3/73 to reduce parasitic inductance and ensure optimal performance.