Microsemi Corporation
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SMBJ4737A/TR13
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SMBJ4737A/TR13

Product Overview

  • Category: Diode
  • Use: Voltage suppression in electronic circuits
  • Characteristics: Transient voltage suppressor diode, 600W power dissipation, 5.0V to 440V stand-off voltage range
  • Package: DO-214AA (SMB), 2-pin
  • Essence: Protects sensitive electronic devices from voltage spikes
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Part Number: SMBJ4737A/TR13
  • Stand-off Voltage: 43.7V
  • Breakdown Voltage: 48.5V
  • Clamping Voltage: 77.4V
  • Peak Pulse Current: 19.6A
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ4737A/TR13 has a simple 2-pin configuration with no polarity.

Functional Features

  • Provides transient voltage suppression for sensitive electronics
  • Fast response time to clamp transient voltages
  • Low clamping voltage to protect downstream components

Advantages and Disadvantages

Advantages

  • High power dissipation capability
  • Wide operating temperature range
  • Compact package size

Disadvantages

  • Relatively high clamping voltage compared to some alternatives
  • Limited peak pulse current handling compared to higher-end models

Working Principles

The SMBJ4737A/TR13 operates by diverting excess voltage away from sensitive components, thereby protecting them from damage due to transient voltage spikes. When the voltage exceeds the stand-off voltage, the diode begins to conduct, shunting the excess energy to ground.

Detailed Application Field Plans

The SMBJ4737A/TR13 is commonly used in: - Power supplies - Communication systems - Industrial equipment - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • SMBJ5.0A: Stand-off Voltage: 5.0V, Peak Pulse Current: 87.1A
  • SMBJ15CA: Stand-off Voltage: 15V, Peak Pulse Current: 34.8A
  • SMBJ78A: Stand-off Voltage: 78V, Peak Pulse Current: 6.4A
  • SMBJ440A: Stand-off Voltage: 440V, Peak Pulse Current: 1.0A

In conclusion, the SMBJ4737A/TR13 is a reliable transient voltage suppressor diode suitable for a wide range of applications, offering robust protection for sensitive electronic devices.

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Texniki həllərdə SMBJ4737A/TR13 tətbiqi ilə bağlı 10 ümumi sual və cavabı sadalayın

  1. What is the SMBJ4737A/TR13?

    • The SMBJ4737A/TR13 is a transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum working voltage of the SMBJ4737A/TR13?

    • The maximum working voltage of the SMBJ4737A/TR13 is 43.2V.

  3. What is the peak pulse power dissipation of the SMBJ4737A/TR13?

    • The peak pulse power dissipation of the SMBJ4737A/TR13 is 600W.

  4. What are the typical applications of the SMBJ4737A/TR13?

    • The SMBJ4737A/TR13 is commonly used in applications such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems.

  5. What is the clamping voltage of the SMBJ4737A/TR13?

    • The clamping voltage of the SMBJ4737A/TR13 is 77.4V at 10A.

  6. What is the operating temperature range of the SMBJ4737A/TR13?

    • The operating temperature range of the SMBJ4737A/TR13 is -55°C to 150°C.

  7. Is the SMBJ4737A/TR13 RoHS compliant?

    • Yes, the SMBJ4737A/TR13 is RoHS compliant, making it suitable for use in environmentally friendly designs.

  8. What package type does the SMBJ4737A/TR13 come in?

    • The SMBJ4737A/TR13 is available in a surface mount DO-214AA (SMB) package.

  9. What standards does the SMBJ4737A/TR13 comply with?

    • The SMBJ4737A/TR13 complies with industry standards such as IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge).

  10. Can the SMBJ4737A/TR13 be used for overvoltage protection in automotive applications?

    • Yes, the SMBJ4737A/TR13 is suitable for overvoltage protection in automotive applications due to its high surge capability and robust construction.