SMAJ4729AE3/TR13

Product Overview

• Category: Diode
• Use: Voltage clamping
• Characteristics: Low leakage current, high surge capability
• Package: DO-214AC (SMA)
• Essence: Transient voltage suppressor diode
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Voltage - Reverse Standoff (Typ): 43.6V
• Voltage - Breakdown (Min): 48.5V
• Clamping Voltage @ Ipp: 77.4V
• Current - Peak Pulse (10/1000µs): 34.8A
• Power - Peak Pulse: 400W
• Type: Zener

Detailed Pin Configuration

The SMAJ4729AE3/TR13 diode has a standard DO-214AC package with two pins. Pin 1 is the anode and pin 2 is the cathode.

Functional Features

• Provides protection against transient voltage events
• Low clamping voltage ensures effective suppression of voltage spikes
• Fast response time for rapid protection

Advantages and Disadvantages

Advantages

• High surge capability
• Low leakage current
• Compact size for easy integration into circuits

Disadvantages

• Limited power dissipation capability
• Clamping voltage may be higher than some alternative models

Working Principles

The SMAJ4729AE3/TR13 operates by diverting excess voltage away from sensitive components in a circuit during transient voltage events. When the voltage exceeds the breakdown voltage, the diode conducts and clamps the voltage to a safe level, protecting downstream components.

Detailed Application Field Plans

This diode is commonly used in electronic circuits to protect sensitive semiconductor devices from voltage transients induced by lightning, ESD, or other electrical disturbances. It finds applications in power supplies, communication equipment, industrial controls, and automotive electronics.

Detailed and Complete Alternative Models

• Alternative Model 1: P6KE47CA
  • Category: Diode
  • Use: Voltage clamping
  • Characteristics: High surge capability, low clamping voltage
• Alternative Model 2: 1.5KE47CA
  • Category: Diode
  • Use: Voltage clamping
  • Characteristics: High surge capability, low leakage current

In conclusion, the SMAJ4729AE3/TR13 is a reliable transient voltage suppressor diode with excellent surge capability and low leakage current, making it suitable for various electronic applications requiring robust overvoltage protection.

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