SMBJ4749A/TR13

Product Overview

• Category: Diode
• Use: Voltage suppression in electronic circuits
• Characteristics: Transient voltage suppressor diode, low clamping voltage, fast response time
• Package: DO-214AA (SMB), 2-pin
• Essence: Protects sensitive electronic components from voltage spikes
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Voltage - Reverse Standoff (Typ): 43.6V
• Voltage - Breakdown (Min): 48.5V
• Clamping Voltage (Max) @ Ipp: 77.4V
• Peak Pulse Current: 30.1A
• Power Peak Pulse: 600W
• Type: Zener

Detailed Pin Configuration

The SMBJ4749A/TR13 has a simple 2-pin configuration with no polarity.

Functional Features

• Provides protection against transient voltage events
• Fast response time ensures minimal damage to protected circuits
• Low clamping voltage prevents excessive voltage exposure to downstream components

Advantages and Disadvantages

Advantages

• Effective voltage suppression
• Fast response time
• Compact package size

Disadvantages

• Limited peak pulse current handling compared to larger diodes
• Higher clamping voltage than some alternative models

Working Principles

The SMBJ4749A/TR13 operates by diverting excess voltage away from sensitive components when a transient voltage event occurs. It acts as a "safety valve" for the circuit, preventing damage from voltage spikes.

Detailed Application Field Plans

The SMBJ4749A/TR13 is commonly used in: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the SMBJ4749A/TR13 include: - SMAJ4749A: Similar characteristics but in a different package (DO-214AC) - P6KE47A: Axial leaded diode with similar voltage suppression capabilities

This comprehensive entry provides an in-depth understanding of the SMBJ4749A/TR13, covering its specifications, features, applications, and alternatives.

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