SMBG40A-E3/52

Product Overview

The SMBG40A-E3/52 belongs to the category of surface mount, unidirectional TVS (transient voltage suppressor) diodes. These diodes are commonly used for protecting sensitive electronic components from voltage spikes and transient surges. The SMBG40A-E3/52 is known for its high reliability, compact package, and efficient transient voltage suppression capabilities.

Basic Information

• Category: Surface Mount Unidirectional TVS Diode
• Use: Protection against voltage spikes and transient surges
• Characteristics: High reliability, compact package
• Package: SMB (DO-214AA)
• Essence: Transient voltage suppression
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Voltage - Reverse Standoff (Typ): 40V
• Voltage - Breakdown (Min): 44.4V
• Voltage - Clamping (Max) @ Ipp: 64.5V
• Current - Peak Pulse (10/1000µs): 10.6A
• Power - Peak Pulse: 400W
• Type: Zener

Detailed Pin Configuration

The SMBG40A-E3/52 typically consists of two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
• Fast Response Time: Rapidly responds to voltage spikes to prevent damage to sensitive electronics.
• Low Leakage Current: Minimizes power consumption during normal operation.

Advantages and Disadvantages

Advantages

• Reliable protection against voltage transients
• Compact size for space-constrained applications
• Fast response time for enhanced protection

Disadvantages

• Limited to unidirectional transient voltage suppression
• May require additional components for bidirectional protection

Working Principles

The SMBG40A-E3/52 operates by diverting excessive transient currents away from sensitive components, thereby limiting the voltage across the protected circuit. This is achieved through the use of a zener diode-based design that rapidly conducts when the voltage exceeds the breakdown voltage, effectively suppressing the transient surge.

Detailed Application Field Plans

The SMBG40A-E3/52 finds extensive application in various electronic systems, including: - Power supply units - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• SMBJ40A: Similar specifications with a slightly different package (SMBJ)
• SMBJ40CA: Bidirectional TVS diode with similar voltage and power ratings
• P6SMBJ40A: Larger package (DO-214AA) with comparable characteristics

In conclusion, the SMBG40A-E3/52 serves as a reliable and compact solution for protecting electronic circuits from transient voltage events. Its fast response time and high reliability make it a preferred choice for various applications requiring robust transient voltage suppression.

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