Microsemi Corporation
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SMAJ4740CE3/TR13
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SMAJ4740CE3/TR13

Product Overview

Category: Diode
Use: Voltage regulation and protection
Characteristics: Fast response time, low leakage current
Package: DO-214AC
Essence: Provides transient voltage suppression
Packaging/Quantity: Tape & Reel, 3000 units

Specifications

  • Voltage - Reverse Standoff (Typ): 40V
  • Voltage - Breakdown (Min): 44.4V
  • Clamping Voltage (Max) @ Ipp: 64.5V
  • Current - Peak Pulse (10/1000µs): 30.6A
  • Power - Peak Pulse: 400W
  • Type: Zener

Detailed Pin Configuration

The SMAJ4740CE3/TR13 diode has two pins, with the cathode connected to the marked side of the package and the anode connected to the unmarked side.

Functional Features

  • Fast response to transient overvoltage events
  • Low clamping voltage to protect sensitive components
  • High surge capability for reliable performance

Advantages and Disadvantages

Advantages: 1. Fast response time 2. Low leakage current 3. High surge capability

Disadvantages: 1. Clamping voltage may be higher than some alternative models 2. Sensitive to reverse bias conditions

Working Principles

The SMAJ4740CE3/TR13 operates by diverting excess voltage away from sensitive components, providing protection against transient voltage events. When a voltage spike occurs, the diode rapidly conducts, limiting the voltage across the protected circuit.

Detailed Application Field Plans

This diode is commonly used in electronic circuits to protect against voltage transients induced by lightning, ESD, or other electrical disturbances. It is widely applied in telecommunications equipment, industrial control systems, and power supplies.

Detailed and Complete Alternative Models

  1. P6KE39CA: Similar specifications, different package (DO-15)
  2. 1.5KE33CA: Higher power rating, similar breakdown voltage
  3. SMBJ40CA: Smaller package size, lower peak pulse current rating

In conclusion, the SMAJ4740CE3/TR13 diode offers fast and reliable transient voltage suppression for various electronic applications, making it a valuable component in protecting sensitive circuits from voltage spikes and surges.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMAJ4740CE3/TR13 v technických řešeních

  1. What is the maximum reverse voltage of SMAJ4740CE3/TR13?

    • The maximum reverse voltage of SMAJ4740CE3/TR13 is 40V.

  2. What is the typical junction capacitance of SMAJ4740CE3/TR13?

    • The typical junction capacitance of SMAJ4740CE3/TR13 is 110pF.

  3. What is the peak pulse power dissipation of SMAJ4740CE3/TR13?

    • The peak pulse power dissipation of SMAJ4740CE3/TR13 is 400W.

  4. What is the operating temperature range for SMAJ4740CE3/TR13?

    • The operating temperature range for SMAJ4740CE3/TR13 is -55°C to +150°C.

  5. What are the typical applications for SMAJ4740CE3/TR13?

    • SMAJ4740CE3/TR13 is commonly used in surge protection for sensitive electronics, such as in telecommunications equipment, industrial control systems, and automotive electronics.

  6. What is the breakdown voltage of SMAJ4740CE3/TR13?

    • The breakdown voltage of SMAJ4740CE3/TR13 is typically 44.4V.

  7. Is SMAJ4740CE3/TR13 RoHS compliant?

    • Yes, SMAJ4740CE3/TR13 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  8. What is the package type of SMAJ4740CE3/TR13?

    • SMAJ4740CE3/TR13 comes in a DO-214AC (SMA) package.

  9. Can SMAJ4740CE3/TR13 be used for overvoltage protection in power supplies?

    • Yes, SMAJ4740CE3/TR13 is suitable for overvoltage protection in power supplies and other electronic circuits.

  10. What are the key features of SMAJ4740CE3/TR13?

    • SMAJ4740CE3/TR13 features low clamping voltage, fast response time, and high surge capability, making it ideal for transient voltage suppression applications.