Microsemi Corporation
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SMBJ4739E3/TR13
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SMBJ4739E3/TR13

Product Overview

Category: Diode
Use: Voltage suppression in electronic circuits
Characteristics: Transient voltage suppressor diode
Package: DO-214AB (SMC)
Essence: Protects sensitive electronic devices from voltage spikes
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Part Number: SMBJ4739E3/TR13
  • Voltage - Reverse Standoff (Typ): 43.6V
  • Voltage - Breakdown (Min): 48.4V
  • Voltage - Clamping (Max) @ Ipp: 70.1V
  • Current - Peak Pulse (10/1000µs): 26.3A
  • Power - Peak Pulse: 600W
  • Type: Zener
  • Unidirectional: Yes

Detailed Pin Configuration

The SMBJ4739E3/TR13 is a unidirectional diode with two pins. The cathode is connected to the ground or reference voltage, while the anode is connected to the protected circuit.

Functional Features

  • Fast response time
  • Low clamping voltage
  • High surge capability
  • RoHS compliant

Advantages and Disadvantages

Advantages: - Provides effective protection against voltage transients - Fast reaction time - Compact size

Disadvantages: - Limited power dissipation capability - Unidirectional protection only

Working Principles

The SMBJ4739E3/TR13 operates by diverting excess current away from sensitive components when a voltage spike occurs. It acts as a voltage-triggered switch, shunting excessive energy to protect downstream components.

Detailed Application Field Plans

  • Telecommunications: Protection of communication equipment from lightning-induced surges
  • Automotive: Safeguarding electronic control units from voltage transients
  • Industrial Electronics: Shielding sensitive sensors and controllers from power surges

Detailed and Complete Alternative Models

  • SMBJ4744E3/TR13: Higher reverse standoff voltage (44.2V)
  • SMBJ4761E3/TR13: Lower clamping voltage (77.4V)
  • SMBJ4788E3/TR13: Higher peak pulse current (28.8A)

This concludes the detailed entry for the SMBJ4739E3/TR13 diode.

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Texniki həllərdə SMBJ4739E3/TR13 tətbiqi ilə bağlı 10 ümumi sual və cavabı sadalayın

  1. What is the SMBJ4739E3/TR13?

    • The SMBJ4739E3/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 SMBJ4739E3/TR13?

    • The maximum working voltage of the SMBJ4739E3/TR13 is 39 volts.

  3. What is the peak pulse power of the SMBJ4739E3/TR13?

    • The peak pulse power of the SMBJ4739E3/TR13 is 600 watts.

  4. What are the typical applications of the SMBJ4739E3/TR13?

    • The SMBJ4739E3/TR13 is commonly used in applications such as power supplies, telecommunications equipment, and automotive electronics for transient voltage protection.

  5. What is the clamping voltage of the SMBJ4739E3/TR13?

    • The clamping voltage of the SMBJ4739E3/TR13 is 64.4 volts at 10A.

  6. What is the operating temperature range of the SMBJ4739E3/TR13?

    • The SMBJ4739E3/TR13 has an operating temperature range of -55°C to +150°C.

  7. What is the package type of the SMBJ4739E3/TR13?

    • The SMBJ4739E3/TR13 comes in a surface mount DO-214AA (SMB) package.

  8. Is the SMBJ4739E3/TR13 RoHS compliant?

    • Yes, the SMBJ4739E3/TR13 is RoHS compliant, making it suitable for use in environmentally friendly electronic products.

  9. What are the key features of the SMBJ4739E3/TR13?

    • The key features of the SMBJ4739E3/TR13 include low clamping voltage, fast response time, and high surge capability.

  10. Where can I find detailed specifications and application notes for the SMBJ4739E3/TR13?

    • Detailed specifications and application notes for the SMBJ4739E3/TR13 can be found in the product datasheet provided by the manufacturer or distributor.