Vishay Semiconductor Diodes Division
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SMC3K45CA-M3/9A
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SMC3K45CA-M3/9A

Product Overview

Category

The SMC3K45CA-M3/9A belongs to the category of semiconductor devices, specifically a TVS (Transient Voltage Suppressor) diode.

Use

It is used for surge protection in electronic circuits and systems to safeguard against voltage spikes and transients.

Characteristics

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

Package

The SMC3K45CA-M3/9A is available in a DO-214AB (SMC) package.

Essence

The essence of this product lies in its ability to rapidly suppress transient voltages and protect sensitive electronic components.

Packaging/Quantity

It is typically packaged in reels with quantities varying based on customer requirements.

Specifications

  • Peak Power Dissipation: 3000W
  • Breakdown Voltage: 45V
  • Maximum Clamping Voltage: 77.4V
  • Operating Temperature Range: -55°C to +175°C
  • Reverse Standoff Voltage: 37.1V
  • Leakage Current: 1µA

Detailed Pin Configuration

The SMC3K45CA-M3/9A has two pins, anode, and cathode, which are clearly labeled for easy identification and connection within a circuit.

Functional Features

  • Rapid response to transient overvoltage conditions
  • Low clamping voltage ensures minimal impact on the protected circuit
  • High surge capability for reliable protection

Advantages

  • Effective surge protection
  • Fast response time
  • RoHS compliance for environmental considerations

Disadvantages

  • Limited to specific voltage and power ratings
  • May require additional circuitry for comprehensive protection in complex systems

Working Principles

When a transient voltage spike occurs, the SMC3K45CA-M3/9A conducts current to divert the excess energy away from the protected circuit, thereby limiting the voltage across it.

Detailed Application Field Plans

The SMC3K45CA-M3/9A is commonly used in: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • SMCJ45A: Similar TVS diode with higher peak power dissipation
  • P6SMB45CA: TVS diode with different package and characteristics suitable for alternative applications

In conclusion, the SMC3K45CA-M3/9A is a vital component in protecting electronic circuits from transient voltage events, ensuring the reliability and longevity of electronic systems across various industries.

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技術ソリューションにおける SMC3K45CA-M3/9A の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the SMC3K45CA-M3/9A?

    • The SMC3K45CA-M3/9A is a high-power, surface-mount TVS diode designed to protect sensitive electronics from voltage transients and surges.

  2. What are the key features of the SMC3K45CA-M3/9A?

    • The key features include a peak power dissipation of 3000W, low clamping voltage, and compatibility with automated placement equipment.

  3. In what technical solutions can the SMC3K45CA-M3/9A be used?

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

  4. How does the SMC3K45CA-M3/9A protect electronic circuits?

    • It provides transient voltage suppression by diverting excessive current away from sensitive components, thus safeguarding them from damage.

  5. What are the recommended operating conditions for the SMC3K45CA-M3/9A?

    • The recommended operating temperature range is -55°C to +175°C, and it should be operated within its specified voltage and current ratings.

  6. Is the SMC3K45CA-M3/9A RoHS compliant?

    • Yes, the SMC3K45CA-M3/9A is compliant with the Restriction of Hazardous Substances (RoHS) directive.

  7. Can the SMC3K45CA-M3/9A be used in high-frequency applications?

    • Yes, it has a fast response time and can effectively suppress transients in high-frequency applications.

  8. Does the SMC3K45CA-M3/9A require any additional heat sinking or cooling?

    • It is designed to handle high power dissipation without requiring additional heat sinking or cooling under normal operating conditions.

  9. Are there any application notes or guidelines available for using the SMC3K45CA-M3/9A in specific technical solutions?

    • Yes, detailed application notes and guidelines are provided by the manufacturer to assist in the proper implementation of the SMC3K45CA-M3/9A.

  10. Where can I purchase the SMC3K45CA-M3/9A and what is the typical lead time?

    • The SMC3K45CA-M3/9A can be purchased through authorized distributors, and the typical lead time may vary based on availability and order quantity.