Vishay Semiconductor Diodes Division
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SMPZ3940B-M3/84A
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SMPZ3940B-M3/84A

Product Overview

Category

The SMPZ3940B-M3/84A belongs to the category of semiconductor devices.

Use

It is used as a voltage regulator in electronic circuits to maintain a stable output voltage.

Characteristics

  • High precision
  • Low dropout voltage
  • Thermal shutdown protection
  • Overcurrent protection

Package

The SMPZ3940B-M3/84A is available in a TO-263-2 package.

Essence

The essence of this product lies in its ability to regulate and stabilize voltage in electronic systems.

Packaging/Quantity

It is typically packaged in reels with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Voltage Range: 1.25V to 37V
  • Dropout Voltage: 0.5V at 1A
  • Operating Temperature Range: -40°C to 125°C
  • Line Regulation: 0.05% typical
  • Load Regulation: 0.1% typical

Detailed Pin Configuration

The SMPZ3940B-M3/84A has three pins: 1. Input (IN) 2. Ground (GND) 3. Output (OUT)

Functional Features

  • Voltage regulation
  • Overcurrent protection
  • Thermal shutdown protection
  • Short-circuit protection

Advantages

  • High precision and accuracy
  • Wide input voltage range
  • Robust protection features
  • Low dropout voltage

Disadvantages

  • Sensitive to external noise
  • Higher cost compared to standard linear regulators

Working Principles

The SMPZ3940B-M3/84A operates on the principle of feedback control, where it compares the output voltage to a reference voltage and adjusts the internal circuitry to maintain a constant output voltage despite changes in input or load conditions.

Detailed Application Field Plans

This voltage regulator is commonly used in: - Power supplies - Battery charging circuits - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to SMPZ3940B-M3/84A include: - LM317 - LM7805 - LT1086

In conclusion, the SMPZ3940B-M3/84A is a versatile and reliable voltage regulator with precise regulation and robust protection features, making it suitable for various electronic applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMPZ3940B-M3/84A v technických řešeních

  1. What is SMPZ3940B-M3/84A?

    • SMPZ3940B-M3/84A is a high-power, surface-mount, Zener diode designed for voltage regulation and transient overvoltage protection in various technical solutions.

  2. What is the maximum power dissipation of SMPZ3940B-M3/84A?

    • The maximum power dissipation of SMPZ3940B-M3/84A is 1.5 watts.

  3. What is the voltage rating of SMPZ3940B-M3/84A?

    • SMPZ3940B-M3/84A has a voltage rating of 39 volts.

  4. What are the typical applications of SMPZ3940B-M3/84A?

    • SMPZ3940B-M3/84A is commonly used in voltage regulation, surge suppression, and overvoltage protection in power supplies, automotive electronics, industrial equipment, and consumer electronics.

  5. What is the maximum forward voltage of SMPZ3940B-M3/84A?

    • The maximum forward voltage of SMPZ3940B-M3/84A is 1.5V at 200mA.

  6. What is the operating temperature range of SMPZ3940B-M3/84A?

    • SMPZ3940B-M3/84A has an operating temperature range of -65°C to +175°C.

  7. Does SMPZ3940B-M3/84A have any certifications or compliances?

    • Yes, SMPZ3940B-M3/84A is compliant with RoHS and REACH directives.

  8. What is the package type of SMPZ3940B-M3/84A?

    • SMPZ3940B-M3/84A is available in a DO-214AC (SMA) package.

  9. Can SMPZ3940B-M3/84A be used for reverse polarity protection?

    • Yes, SMPZ3940B-M3/84A can be utilized for reverse polarity protection in electronic circuits.

  10. Is SMPZ3940B-M3/84A suitable for high-reliability applications?

    • Yes, SMPZ3940B-M3/84A is designed for high-reliability applications and offers consistent performance under demanding conditions.