Vishay Semiconductor Diodes Division
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SMAJ45CAHE3/5A
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SMAJ45CAHE3/5A

Product Overview

  • Category: Electronic Component
  • Use: Voltage Suppression
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: DO-214AC (SMA)
  • Essence: Provides protection against transient voltage spikes
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 400 Watts
  • Breakdown Voltage: 45V
  • Clamping Voltage: 77.4V
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ45CAHE3/5A has two pins in a standard DO-214AC package.

Functional Features

  • Provides effective protection against voltage transients
  • Fast response time ensures minimal damage to the protected circuit
  • High surge capability for reliable performance in demanding applications

Advantages and Disadvantages

Advantages

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

Disadvantages

  • Limited breakdown voltage compared to higher-rated devices
  • Sensitive to reverse polarity connection

Working Principles

The SMAJ45CAHE3/5A operates by diverting excess voltage away from sensitive components, thereby protecting them from damage due to transient voltage spikes. When a surge occurs, the device rapidly clamps the voltage to a safe level, safeguarding the connected circuitry.

Detailed Application Field Plans

The SMAJ45CAHE3/5A is commonly used in various electronic systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • SMAJ5.0CA: Breakdown Voltage: 5.0V
  • SMAJ6.0CA: Breakdown Voltage: 6.0V
  • SMAJ10CA: Breakdown Voltage: 10V
  • SMAJ15CA: Breakdown Voltage: 15V

In conclusion, the SMAJ45CAHE3/5A is a vital component in electronic systems, providing essential protection against transient voltage spikes. Its high surge capability, low clamping voltage, and fast response time make it an ideal choice for various applications, despite its limitations in breakdown voltage and sensitivity to reverse polarity connections.

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  1. What is SMAJ45CAHE3/5A?

    • SMAJ45CAHE3/5A is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and surges.

  2. What is the maximum peak pulse power of SMAJ45CAHE3/5A?

    • The maximum peak pulse power of SMAJ45CAHE3/5A is 400 watts.

  3. What is the breakdown voltage of SMAJ45CAHE3/5A?

    • The breakdown voltage of SMAJ45CAHE3/5A is 45 volts.

  4. What are the typical applications of SMAJ45CAHE3/5A?

    • SMAJ45CAHE3/5A is commonly used in applications such as telecommunications equipment, industrial controls, consumer electronics, and automotive electronics for surge protection.

  5. What is the operating temperature range of SMAJ45CAHE3/5A?

    • The operating temperature range of SMAJ45CAHE3/5A is -55°C to +150°C.

  6. What is the reverse stand-off voltage of SMAJ45CAHE3/5A?

    • The reverse stand-off voltage of SMAJ45CAHE3/5A is 45 volts.

  7. What is the clamping voltage of SMAJ45CAHE3/5A?

    • The clamping voltage of SMAJ45CAHE3/5A at its peak pulse current is typically 77.4 volts.

  8. How does SMAJ45CAHE3/5A provide protection against voltage transients?

    • SMAJ45CAHE3/5A diverts excessive current away from sensitive components by conducting when a specified voltage threshold is exceeded, thereby protecting the circuit.

  9. What are the package dimensions of SMAJ45CAHE3/5A?

    • The SMAJ45CAHE3/5A comes in a compact SMB (DO-214AA) package with dimensions of approximately 5.3mm x 2.8mm x 2.8mm.

  10. Is SMAJ45CAHE3/5A RoHS compliant?

    • Yes, SMAJ45CAHE3/5A is RoHS compliant, making it suitable for use in environmentally conscious designs.