Microsemi Corporation
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SMAJ4761E3/TR13
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SMAJ4761E3/TR13

Product Overview

  • Category: Diode
  • Use: Voltage clamping and transient suppression
  • Characteristics: Low leakage current, fast response time, high surge capability
  • Package: DO-214AC (SMA)
  • Essence: Silicon junction diode
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 500 W
  • Breakdown Voltage: 76.1 V
  • Clamping Voltage: 121 V
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ4761E3/TR13 diode has a standard DO-214AC package with two pins. Pin 1 is the anode, and pin 2 is the cathode.

Functional Features

  • Provides protection against voltage transients
  • Fast response time ensures minimal damage to protected circuitry
  • Low clamping voltage for effective suppression of transient events

Advantages and Disadvantages

Advantages

  • High surge capability
  • Low leakage current
  • Compact package size

Disadvantages

  • Limited breakdown voltage compared to some alternative models
  • Sensitive to reverse bias conditions

Working Principles

The SMAJ4761E3/TR13 operates by diverting excess transient voltage away from sensitive components in a circuit, thereby protecting them from damage. When a transient event occurs, the diode rapidly switches into a low-impedance state, effectively clamping the voltage to a safe level.

Detailed Application Field Plans

This diode is commonly used in electronic circuits where protection against voltage transients is required, such as power supplies, communication equipment, and automotive electronics. It is particularly useful in applications exposed to lightning or other high-energy transient events.

Detailed and Complete Alternative Models

  • Alternative Model 1: P6KE68CA
    • Breakdown Voltage: 68 V
    • Peak Pulse Power: 600 W
    • Package: DO-15
  • Alternative Model 2: 1.5KE100A
    • Breakdown Voltage: 100 V
    • Peak Pulse Power: 1500 W
    • Package: DO-201

In conclusion, the SMAJ4761E3/TR13 diode is a reliable and compact solution for voltage clamping and transient suppression in various electronic applications, offering fast response times and high surge capability. While it has limitations in terms of breakdown voltage, its advantages make it a popular choice for protecting sensitive circuitry from transient events.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMAJ4761E3/TR13 en soluciones técnicas

  1. What is the maximum reverse voltage of SMAJ4761E3/TR13?

    • The maximum reverse voltage of SMAJ4761E3/TR13 is 61V.

  2. What is the typical junction capacitance of SMAJ4761E3/TR13?

    • The typical junction capacitance of SMAJ4761E3/TR13 is 110pF.

  3. What is the peak pulse power dissipation of SMAJ4761E3/TR13?

    • The peak pulse power dissipation of SMAJ4761E3/TR13 is 400W.

  4. What are the applications of SMAJ4761E3/TR13 in technical solutions?

    • SMAJ4761E3/TR13 is commonly used for transient voltage suppression in various electronic circuits, such as power supplies, automotive electronics, and telecommunications equipment.

  5. What is the operating temperature range of SMAJ4761E3/TR13?

    • The operating temperature range of SMAJ4761E3/TR13 is -55°C to 150°C.

  6. What is the forward voltage drop of SMAJ4761E3/TR13 at a specified current?

    • The forward voltage drop of SMAJ4761E3/TR13 at a specified current is typically around 3.5V.

  7. How does SMAJ4761E3/TR13 protect electronic circuits?

    • SMAJ4761E3/TR13 provides protection against voltage transients by diverting excessive current away from sensitive components, thus safeguarding the circuit from damage.

  8. What are the packaging options available for SMAJ4761E3/TR13?

    • SMAJ4761E3/TR13 is available in various package types, including DO-214AC (SMA) and DO-214AB (SMC).

  9. Can SMAJ4761E3/TR13 be used in high-speed data lines?

    • Yes, SMAJ4761E3/TR13 can be used in high-speed data lines to protect against electrostatic discharge (ESD) and other transient events.

  10. Are there any recommended layout considerations when using SMAJ4761E3/TR13?

    • It is recommended to minimize the length and impedance of the traces connecting SMAJ4761E3/TR13 to the circuit to ensure effective transient suppression.