Vishay Semiconductor Diodes Division
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1.5SMC20AHE3/9AT
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1.5SMC20AHE3/9AT

Product Overview

Category

The 1.5SMC20AHE3/9AT belongs to the category of TVS (Transient Voltage Suppressor) diodes.

Use

It is used for surge protection in electronic circuits, providing a high level of protection against voltage transients.

Characteristics

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

Package

The 1.5SMC20AHE3/9AT is available in a DO-214AB (SMC) package.

Essence

This TVS diode is designed to safeguard sensitive electronics from voltage spikes and surges.

Packaging/Quantity

The 1.5SMC20AHE3/9AT is typically packaged in reels with quantities varying based on customer requirements.

Specifications

  • Standoff Voltage: 17.1V
  • Breakdown Voltage: 18.9V
  • Maximum Clamping Voltage: 29.2V
  • Peak Pulse Current: 43.5A
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The 1.5SMC20AHE3/9AT has two pins, anode, and cathode, which are clearly marked on the device.

Functional Features

  • Provides protection against transient voltage events
  • Fast response time ensures minimal impact on the protected circuit
  • High surge capability allows it to handle large transient currents

Advantages and Disadvantages

Advantages

  • Effective surge protection
  • Fast response time
  • RoHS compliant

Disadvantages

  • May require additional circuitry for comprehensive overvoltage protection

Working Principles

When a transient voltage event occurs, the 1.5SMC20AHE3/9AT rapidly conducts current to divert the excess energy away from the protected circuit, thus limiting the voltage across the circuit.

Detailed Application Field Plans

The 1.5SMC20AHE3/9AT is commonly used in various applications including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the 1.5SMC20AHE3/9AT include: - P6KE18CA - SMBJ17CA - 1.5KE18CA

In conclusion, the 1.5SMC20AHE3/9AT TVS diode offers effective surge protection with its high surge capability, low clamping voltage, and fast response time. It finds widespread use in diverse electronic applications and has several alternative models available in the market.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1.5SMC20AHE3/9AT en soluciones técnicas

  1. What is the maximum peak pulse current for 1.5SMC20AHE3/9AT?

    • The maximum peak pulse current for 1.5SMC20AHE3/9AT is 50A.

  2. What is the breakdown voltage of 1.5SMC20AHE3/9AT?

    • The breakdown voltage of 1.5SMC20AHE3/9AT is 17.8V.

  3. What is the typical clamping voltage of 1.5SMC20AHE3/9AT?

    • The typical clamping voltage of 1.5SMC20AHE3/9AT is 29.2V at 20A.

  4. What are the applications of 1.5SMC20AHE3/9AT in technical solutions?

    • 1.5SMC20AHE3/9AT is commonly used for surge protection in various electronic and electrical systems, including power supplies, telecommunications equipment, and industrial controls.

  5. What is the operating temperature range for 1.5SMC20AHE3/9AT?

    • The operating temperature range for 1.5SMC20AHE3/9AT is -55°C to +150°C.

  6. Is 1.5SMC20AHE3/9AT suitable for overvoltage protection in automotive applications?

    • Yes, 1.5SMC20AHE3/9AT can be used for overvoltage protection in automotive electronics due to its high surge current capability and robust construction.

  7. Can 1.5SMC20AHE3/9AT be used in transient voltage suppression (TVS) circuits?

    • Yes, 1.5SMC20AHE3/9AT is designed for use in TVS circuits to protect sensitive components from voltage transients.

  8. What is the response time of 1.5SMC20AHE3/9AT to a surge event?

    • The response time of 1.5SMC20AHE3/9AT to a surge event is very fast, typically in the nanosecond range.

  9. Does 1.5SMC20AHE3/9AT require any external heat sinking for normal operation?

    • No, 1.5SMC20AHE3/9AT does not require external heat sinking under normal operating conditions.

  10. Are there any specific PCB layout considerations for integrating 1.5SMC20AHE3/9AT into a circuit?

    • It is recommended to minimize the length and impedance of the traces connecting 1.5SMC20AHE3/9AT to the circuit to ensure optimal performance during surge events.