SMBJ4749CE3/TR13

Product Overview

• Category: Diode
• Use: Voltage suppression in electronic circuits
• Characteristics: Fast response time, low clamping voltage, compact package
• Package: SMB (DO-214AA)
• Essence: Transient Voltage Suppressor (TVS) diode
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Reverse Standoff Voltage: 43.6V
• Breakdown Voltage: 48.4V
• Peak Pulse Power: 600W
• Operating Temperature Range: -55°C to +150°C
• RoHS Compliant: Yes

Detailed Pin Configuration

The SMBJ4749CE3/TR13 has two pins, with the anode connected to the positive side and the cathode connected to the negative side.

Functional Features

• Provides protection against transient voltage events
• Fast response time ensures minimal damage to sensitive components
• Low clamping voltage diverts excess voltage away from the protected circuit

Advantages and Disadvantages

Advantages

• Effective voltage suppression
• Compact size for space-constrained applications
• RoHS compliant for environmental considerations

Disadvantages

• Limited power dissipation capability compared to larger TVS diodes
• Higher cost compared to standard diodes

Working Principles

When a transient voltage event occurs, the SMBJ4749CE3/TR13 conducts current to divert the excess voltage away from the protected circuit, thereby limiting the voltage across the circuit.

Detailed Application Field Plans

• Telecommunications: Protecting communication equipment from lightning-induced surges
• Automotive Electronics: Safeguarding sensitive automotive electronics from voltage transients
• Industrial Control Systems: Shielding control systems from electrical disturbances

Detailed and Complete Alternative Models

• SMBJ4748CE3/TR13: Lower breakdown voltage of 47.8V
• SMBJ4750CE3/TR13: Higher breakdown voltage of 49.1V
• SMBJ4760CE3/TR13: Higher peak pulse power of 660W

In conclusion, the SMBJ4749CE3/TR13 is a reliable TVS diode that offers fast response time and effective voltage suppression, making it suitable for various applications requiring transient voltage protection.

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