Microsemi Corporation
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
SMAJ4742CE3/TR13
Zobrazit detail DataSheets

SMAJ4742CE3/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: Protecting electronic circuits from voltage spikes and transients
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Part Number: SMAJ4742CE3/TR13
  • Voltage - Reverse Standoff (Typ): 42V
  • Voltage - Breakdown (Min): 46.7V
  • Clamping Voltage @ Ipp: 67.7V
  • Current - Peak Pulse (10/1000µs): 34.1A
  • Power - Peak Pulse: 400W
  • Type: Zener

Detailed Pin Configuration

The SMAJ4742CE3/TR13 diode has two pins in the DO-214AC package. The anode is connected to pin 1, and the cathode is connected to pin 2.

Functional Features

  • Provides protection against voltage surges and transients
  • Fast response time for immediate clamping of overvoltage events
  • Low leakage current ensures minimal power dissipation during normal operation

Advantages and Disadvantages

Advantages

  • High surge capability
  • Fast response time
  • Low leakage current

Disadvantages

  • Clamping voltage may be higher than some alternative models
  • Relatively lower breakdown voltage compared to some alternatives

Working Principles

The SMAJ4742CE3/TR13 operates based on the principle of Zener breakdown. When the voltage across the diode exceeds its breakdown voltage, it conducts heavily, clamping the voltage to a safe level and protecting the circuitry downstream.

Detailed Application Field Plans

The SMAJ4742CE3/TR13 is commonly used in various electronic systems where protection against voltage spikes and transients is required. Some specific application fields include: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the SMAJ4742CE3/TR13 include: - P6SMBJ42CA - 1.5SMCJ42A - SMBJ42CA

In conclusion, the SMAJ4742CE3/TR13 diode provides effective voltage clamping and transient suppression, making it suitable for a wide range of electronic applications. Its fast response time and high surge capability make it a reliable choice for protecting sensitive components from voltage spikes and transients.

[Word Count: 349]

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMAJ4742CE3/TR13 v technických řešeních

  1. What is SMAJ4742CE3/TR13?

    • SMAJ4742CE3/TR13 is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What are the key features of SMAJ4742CE3/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 SMAJ4742CE3/TR13 be used?

    • It is commonly used in various technical solutions such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems.

  4. How does SMAJ4742CE3/TR13 provide protection against voltage spikes?

    • It works by diverting excessive current away from sensitive components when a voltage spike occurs, thus preventing damage to the circuit.

  5. What is the operating temperature range of SMAJ4742CE3/TR13?

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

  6. Can SMAJ4742CE3/TR13 be used for ESD protection?

    • Yes, it can provide effective protection against electrostatic discharge (ESD) events, safeguarding sensitive electronics from damage.

  7. Is SMAJ4742CE3/TR13 RoHS compliant?

    • Yes, it is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring environmental safety and regulatory compliance.

  8. What is the recommended PCB layout for SMAJ4742CE3/TR13?

    • A good PCB layout includes short traces, minimal vias, and proper grounding to optimize the performance of the diode.

  9. Does SMAJ4742CE3/TR13 require any external components for operation?

    • No, it is a standalone device and does not require additional external components for its operation.

  10. What are the packaging options available for SMAJ4742CE3/TR13?

    • It is available in various package types such as DO-214AC (SMA), providing flexibility for different design requirements.