Vishay Semiconductor Diodes Division
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SMF40A-HM3-18
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SMF40A-HM3-18

Product Overview

Category: Electronic Component
Use: Voltage Suppressor Diode
Characteristics: High surge capability, low clamping voltage, fast response time
Package: DO-214AB (SMC)
Essence: Protects sensitive electronic devices from voltage spikes
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 400W
  • Breakdown Voltage: 43.6V
  • Clamping Voltage: 70.1V
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMF40A-HM3-18 has two pins in a standard SMC package configuration.

Functional Features

  • Provides overvoltage protection for sensitive electronics
  • Fast response time ensures minimal damage to protected devices
  • High surge capability allows for reliable protection in high-energy environments

Advantages and Disadvantages

Advantages: - High surge capability - Low clamping voltage - Fast response time

Disadvantages: - Relatively high operating temperature range

Working Principles

When an overvoltage event occurs, the diode conducts current to divert the excess energy away from the protected circuit, thereby limiting the voltage across the circuit.

Detailed Application Field Plans

  • Consumer electronics
  • Automotive electronics
  • Industrial equipment
  • Telecommunications

Detailed and Complete Alternative Models

  • SMAJ40A
  • SMBJ40A
  • SMLJ40A
  • SMCJ40A

This concludes the English editing encyclopedia entry structure for SMF40A-HM3-18.

Перечислите 10 распространенных вопросов и ответов, связанных с применением SMF40A-HM3-18 в технических решениях.

  1. What is SMF40A-HM3-18?

    • SMF40A-HM3-18 is a surface mount Schottky barrier diode designed for high-speed switching applications.

  2. What are the key features of SMF40A-HM3-18?

    • The key features include low forward voltage drop, fast switching speed, and high reliability.

  3. What are the typical applications of SMF40A-HM3-18?

    • Typical applications include power supply rectification, freewheeling diodes, and reverse polarity protection.

  4. What is the maximum forward current rating of SMF40A-HM3-18?

    • The maximum forward current rating is typically 3A.

  5. What is the reverse voltage rating of SMF40A-HM3-18?

    • The reverse voltage rating is typically 40V.

  6. Is SMF40A-HM3-18 RoHS compliant?

    • Yes, it is RoHS compliant, making it suitable for use in environmentally sensitive applications.

  7. What is the operating temperature range of SMF40A-HM3-18?

    • The operating temperature range is typically -65°C to +125°C.

  8. Does SMF40A-HM3-18 come in a standard package?

    • Yes, it is available in a standard SOD-123FL package.

  9. Can SMF40A-HM3-18 be used in automotive applications?

    • Yes, it is suitable for use in automotive electronics due to its high reliability and performance.

  10. Are there any recommended layout considerations for using SMF40A-HM3-18 in a circuit?

    • Yes, it is recommended to minimize the length of the PCB traces connected to the diode to reduce parasitic inductance and optimize performance.