Microsemi Corporation
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SMAJ4481CE3/TR13
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SMAJ4481CE3/TR13

Product Overview

Category: Diode
Use: Voltage clamping
Characteristics: Transient voltage suppressor diode
Package: DO-214AC (SMA)
Essence: Protects electronic circuits from overvoltage transients
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Part Number: SMAJ4481CE3/TR13
  • Voltage - Reverse Standoff (Typ): 48.1V
  • Voltage - Breakdown (Min): 53.3V
  • Voltage - Clamping (Max) @ Ipp: 77.4V
  • Current - Peak Pulse (10/1000µs): 36.6A
  • Power - Peak Pulse: 400W
  • Type: Zener

Detailed Pin Configuration

The SMAJ4481CE3/TR13 is a unidirectional TVS diode with two pins. The cathode is connected to the marked side of the package, while the anode is connected to the unmarked side.

Functional Features

  • Provides protection against transient voltage events
  • Fast response time
  • Low clamping voltage
  • High surge capability

Advantages and Disadvantages

Advantages: - Effective in protecting sensitive electronic components - Fast reaction to voltage spikes - Compact size

Disadvantages: - Limited power dissipation capability - May require additional circuitry for comprehensive protection

Working Principles

The SMAJ4481CE3/TR13 operates by diverting excessive voltage away from sensitive components, thereby preventing damage due to transient voltage events. When the voltage exceeds the breakdown voltage, the diode conducts and clamps the voltage to a safe level.

Detailed Application Field Plans

The SMAJ4481CE3/TR13 is commonly used in various electronic systems such as: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • Alternative Model 1: P6SMB48CA
  • Alternative Model 2: 1.5KE51CA
  • Alternative Model 3: SMBJ48CA

In conclusion, the SMAJ4481CE3/TR13 is a vital component in safeguarding electronic circuits from voltage transients, offering fast response and effective clamping. Its compact size and reliability make it suitable for a wide range of applications, although designers should consider its limitations in power dissipation and the need for supplementary protection measures.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMAJ4481CE3/TR13 v technických řešeních

  1. What is SMAJ4481CE3/TR13?

    • SMAJ4481CE3/TR13 is a surface mount transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What are the key features of SMAJ4481CE3/TR13?

    • The key features include a peak pulse power of 400W, low clamping voltage, fast response time, and compatibility with automated placement equipment.

  3. In what applications can SMAJ4481CE3/TR13 be used?

    • SMAJ4481CE3/TR13 is commonly used in applications such as telecommunications equipment, industrial automation, power supplies, and automotive electronics.

  4. How does SMAJ4481CE3/TR13 provide protection?

    • It provides protection by diverting excessive current away from sensitive components when a transient voltage event occurs, thereby preventing damage.

  5. What is the operating temperature range of SMAJ4481CE3/TR13?

    • The operating temperature range is typically -55°C to +150°C, making it suitable for a wide range of environments.

  6. What is the recommended PCB layout for SMAJ4481CE3/TR13?

    • A recommended layout includes short traces between the diode and the protected component, as well as a low-inductance path to ground.

  7. Can SMAJ4481CE3/TR13 be used for ESD protection?

    • Yes, it can provide effective electrostatic discharge (ESD) protection for sensitive electronic circuits.

  8. What is the typical capacitance of SMAJ4481CE3/TR13?

    • The typical capacitance is around 5pF, which is important for minimizing signal distortion in high-speed data lines.

  9. Is SMAJ4481CE3/TR13 RoHS compliant?

    • Yes, it is compliant with the Restriction of Hazardous Substances (RoHS) directive, making it suitable for use in environmentally conscious designs.

  10. Are there any application notes or design guidelines available for using SMAJ4481CE3/TR13?

    • Yes, detailed application notes and design guidelines are provided by the manufacturer to assist in the proper implementation of SMAJ4481CE3/TR13 in technical solutions.