Vishay Semiconductor Diodes Division
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SMPZ3937B-M3/85A
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SMPZ3937B-M3/85A

Product Overview

  • Category: Semiconductor
  • Use: Voltage Regulator
  • Characteristics: High efficiency, low dropout voltage, compact size
  • Package: SOT-223
  • Essence: Regulating voltage for electronic devices
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage: 3.3V
  • Output Current: 500mA
  • Dropout Voltage: 350mV at 500mA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. Vin (Input Voltage)
  2. GND (Ground)
  3. Vout (Output Voltage)

Functional Features

  • Low dropout voltage
  • Thermal shutdown protection
  • Short-circuit current limit
  • Reverse battery protection

Advantages and Disadvantages

Advantages

  • High efficiency
  • Wide input voltage range
  • Compact size

Disadvantages

  • Limited output current
  • Sensitive to thermal conditions

Working Principles

The SMPZ3937B-M3/85A is a voltage regulator that maintains a stable output voltage despite fluctuations in the input voltage or load. It achieves this by using a feedback mechanism to adjust the output voltage.

Detailed Application Field Plans

The SMPZ3937B-M3/85A is suitable for various applications requiring a stable 3.3V power supply, such as: - Battery-powered devices - Embedded systems - Consumer electronics

Detailed and Complete Alternative Models

  • LM1117MPX-3.3/NOPB
  • MIC5205-3.3YM5-TR
  • AP2112K-3.3TRG1

This completes the entry for SMPZ3937B-M3/85A, providing comprehensive information about its category, use, characteristics, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng SMPZ3937B-M3/85A trong giải pháp kỹ thuật

  1. What is SMPZ3937B-M3/85A?

    • SMPZ3937B-M3/85A is a high-power surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

  2. What is the maximum power dissipation of SMPZ3937B-M3/85A?

    • The maximum power dissipation of SMPZ3937B-M3/85A is 5.0 Watts.

  3. What is the breakdown voltage of SMPZ3937B-M3/85A?

    • The breakdown voltage of SMPZ3937B-M3/85A is 85V.

  4. What are the typical applications for SMPZ3937B-M3/85A?

    • SMPZ3937B-M3/85A is commonly used in surge protection for telecommunications equipment, industrial control systems, automotive electronics, and power supplies.

  5. What is the operating temperature range of SMPZ3937B-M3/85A?

    • SMPZ3937B-M3/85A has an operating temperature range of -55°C to +150°C.

  6. What is the package type of SMPZ3937B-M3/85A?

    • SMPZ3937B-M3/85A is available in a DO-214AA (SMB) package.

  7. Does SMPZ3937B-M3/85A comply with any industry standards?

    • Yes, SMPZ3937B-M3/85A complies with the RoHS directive and is halogen-free.

  8. What is the clamping voltage of SMPZ3937B-M3/85A?

    • The clamping voltage of SMPZ3937B-M3/85A at peak pulse current is typically 137V.

  9. Can SMPZ3937B-M3/85A be used for ESD protection?

    • Yes, SMPZ3937B-M3/85A can be used for electrostatic discharge (ESD) protection in various electronic circuits.

  10. Is SMPZ3937B-M3/85A suitable for high-reliability applications?

    • Yes, SMPZ3937B-M3/85A is suitable for high-reliability applications due to its robust construction and high surge capability.