Littelfuse Inc.
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SMCJ45A-HR
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SMCJ45A-HR

Product Overview

The SMCJ45A-HR belongs to the category of transient voltage suppressor diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and surges. The SMCJ45A-HR is designed to provide robust protection for Ethernet and telecom applications. Its characteristics include high surge capability, low clamping voltage, and fast response time. The product is typically packaged in a surface mount package and is available in various quantities to suit different production needs.

Specifications

  • Peak Pulse Power: 1500 Watts
  • Breakdown Voltage Range: 40.2V to 44.7V
  • Operating Temperature Range: -55°C to +150°C
  • Package Type: SMC (DO-214AB)
  • Quantity per Reel: 1500 units

Detailed Pin Configuration

The SMCJ45A-HR follows the standard pin configuration for SMC package diodes, with two terminals for connection to the circuit board.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
  • High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Robust protection against voltage surges
  • Fast response time
  • High surge capability

Disadvantages

  • Clamping voltage may be relatively higher compared to some alternative models

Working Principles

The SMCJ45A-HR operates by diverting excess voltage away from sensitive components when a surge occurs. It achieves this through a combination of its internal diode structure and the characteristics of the semiconductor material used.

Detailed Application Field Plans

The SMCJ45A-HR is widely used in Ethernet and telecom equipment to safeguard against voltage transients that could otherwise damage sensitive circuitry. It is commonly employed in network switches, routers, and communication interfaces where protection against voltage spikes is critical.

Detailed and Complete Alternative Models

Some alternative models to the SMCJ45A-HR include: - P6SMBJ45CA: Similar specifications and package type - 1.5SMCJ45A: Higher peak pulse power rating - SMBJ45A: Smaller package size

In conclusion, the SMCJ45A-HR offers robust transient voltage suppression for Ethernet and telecom applications, making it an essential component in protecting sensitive electronic equipment from damaging voltage surges.

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기술 솔루션에 SMCJ45A-HR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the maximum peak pulse power of SMCJ45A-HR?

    • The maximum peak pulse power of SMCJ45A-HR is 1500 watts.

  2. What is the breakdown voltage of SMCJ45A-HR?

    • The breakdown voltage of SMCJ45A-HR is 50.0 volts.

  3. What is the typical clamping voltage of SMCJ45A-HR?

    • The typical clamping voltage of SMCJ45A-HR is 77.4 volts at 14 amperes.

  4. What is the operating temperature range for SMCJ45A-HR?

    • The operating temperature range for SMCJ45A-HR is -55°C to +175°C.

  5. What is the peak pulse current rating of SMCJ45A-HR?

    • The peak pulse current rating of SMCJ45A-HR is 68.2 amperes.

  6. What are the typical applications for SMCJ45A-HR?

    • SMCJ45A-HR is commonly used in surge protection for telecommunications equipment, industrial and consumer electronics, and automotive systems.

  7. Is SMCJ45A-HR RoHS compliant?

    • Yes, SMCJ45A-HR is RoHS compliant, making it suitable for use in environmentally sensitive applications.

  8. What is the package type of SMCJ45A-HR?

    • SMCJ45A-HR comes in a surface mount SMC package.

  9. Does SMCJ45A-HR have a low leakage current?

    • Yes, SMCJ45A-HR features a low leakage current, which is beneficial for minimizing power loss in standby mode.

  10. Can SMCJ45A-HR be used for ESD protection?

    • Yes, SMCJ45A-HR can be used for electrostatic discharge (ESD) protection in various electronic circuits and systems.