Microsemi Corporation
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MPLAD18KP78A
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MPLAD18KP78A Encyclopedia Entry

Product Overview

Category

The MPLAD18KP78A belongs to the category of transient voltage suppressor (TVS) diodes.

Use

It is used for protecting sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.

Characteristics

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

Package

The MPLAD18KP78A is available in a DO-203AB package.

Essence

The essence of the MPLAD18KP78A lies in its ability to provide robust protection against transient voltage events, thereby safeguarding electronic circuits and components.

Packaging/Quantity

The MPLAD18KP78A is typically packaged in reels and is available in quantities suitable for both prototyping and production applications.

Specifications

  • Standoff Voltage: 18V
  • Breakdown Voltage: 20V
  • Maximum Peak Pulse Current: 78A
  • Operating Temperature Range: -55°C to 175°C
  • Reverse Standoff Voltage: 15.3V
  • Reverse Leakage Current: 1μA

Detailed Pin Configuration

The MPLAD18KP78A TVS diode has a standard two-pin configuration with anode and cathode terminals.

Functional Features

  • Bi-directional clamping capability
  • Low incremental surge resistance
  • High reliability and durability

Advantages and Disadvantages

Advantages

  • Excellent surge protection
  • Fast response to transient events
  • Wide operating temperature range

Disadvantages

  • Higher cost compared to traditional overvoltage protection methods
  • Requires careful consideration of placement and layout for optimal performance

Working Principles

The MPLAD18KP78A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current away from the protected circuit when a transient voltage event occurs, thus limiting the voltage across the circuit.

Detailed Application Field Plans

The MPLAD18KP78A is commonly used in various applications, including: - Telecommunications equipment - Industrial automation systems - Power supply units - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the MPLAD18KP78A include: - SMAJ18A - P6KE18CA - 1.5KE18A

In conclusion, the MPLAD18KP78A transient voltage suppressor diode offers robust protection against transient voltage events, making it an essential component in ensuring the reliability and longevity of electronic systems across various industries.

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  1. What is MPLAD18KP78A?

    • MPLAD18KP78A is a high-power transient voltage suppressor diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

  2. What is the maximum peak pulse power of MPLAD18KP78A?

    • The maximum peak pulse power of MPLAD18KP78A is 18000 watts.

  3. What is the breakdown voltage of MPLAD18KP78A?

    • The breakdown voltage of MPLAD18KP78A is 78 volts.

  4. What are the typical applications of MPLAD18KP78A?

    • MPLAD18KP78A is commonly used in surge protection for telecommunications equipment, power supplies, industrial controls, and other sensitive electronic devices.

  5. What is the response time of MPLAD18KP78A?

    • The response time of MPLAD18KP78A is very fast, typically responding within nanoseconds to clamp transient voltages.

  6. What is the operating temperature range of MPLAD18KP78A?

    • MPLAD18KP78A can operate within a wide temperature range, typically from -55°C to 175°C.

  7. How does MPLAD18KP78A provide protection against transient voltage events?

    • MPLAD18KP78A clamps the transient voltage to a safe level, diverting excess current away from the protected circuit.

  8. Is MPLAD18KP78A suitable for use in outdoor applications?

    • Yes, MPLAD18KP78A is suitable for outdoor applications due to its ability to withstand lightning-induced transients.

  9. Can MPLAD18KP78A be used in conjunction with other surge protection devices?

    • Yes, MPLAD18KP78A can be used in combination with other surge protection devices to provide layered protection for sensitive electronics.

  10. What are the key features of MPLAD18KP78A that make it suitable for technical solutions?

    • MPLAD18KP78A offers high surge capability, low clamping voltage, fast response time, and robust construction, making it an ideal choice for protecting electronic equipment in technical solutions.