SMBJ40A-M3/5B

Product Overview

The SMBJ40A-M3/5B belongs to the category of transient voltage suppressor diodes (TVS diodes) and is commonly used for surge protection in electronic circuits. These diodes are characterized by their ability to rapidly clamp transient overvoltage events, thereby protecting sensitive components from damage. The SMBJ40A-M3/5B is typically packaged in a surface mount package and is available in various quantities to suit different application needs.

Basic Information

• Category: Transient Voltage Suppressor Diodes (TVS Diodes)
• Use: Surge protection in electronic circuits
• Characteristics: Rapid clamping of transient overvoltage events
• Package: Surface mount package
• Essence: Protection of sensitive components from damage
• Packaging/Quantity: Available in various quantities

Specifications

• Part Number: SMBJ40A-M3/5B
• Voltage - Reverse Standoff (Typ): 40V
• Power (Watts): 600W
• Polarity: Unidirectional
• Operating Temperature: -55°C to 150°C
• Mounting Type: Surface Mount
• Package / Case: DO-214AA (SMB)

Detailed Pin Configuration

The SMBJ40A-M3/5B TVS diode has a standard surface mount package with two pins for connection. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltage events to protect downstream components.
• Fast Response Time: Rapid response to voltage surges ensures minimal impact on the protected circuitry.
• Low Clamping Voltage: Provides effective protection while minimizing the impact on normal operating voltages.

Advantages and Disadvantages

Advantages

• Effective surge protection for sensitive electronic components
• Fast response time
• Low clamping voltage minimizes impact on normal operation

Disadvantages

• Limited to unidirectional protection
• May require additional components for bidirectional protection

Working Principles

The SMBJ40A-M3/5B operates based on the principle of avalanche breakdown. When a transient overvoltage event occurs, the diode rapidly conducts, diverting the excess current away from the protected circuit. This action effectively limits the voltage across the protected components, preventing damage.

Detailed Application Field Plans

The SMBJ40A-M3/5B TVS diode finds extensive use in various electronic systems requiring surge protection. Some specific application fields include: - Power supply units - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

For applications requiring similar surge protection capabilities, alternative models to the SMBJ40A-M3/5B include: - SMAJ40A: Similar specifications with a different package type (DO-214AC) - P6SMBJ40A: Higher power rating (600W) with a different package (DO-214AA)

In conclusion, the SMBJ40A-M3/5B TVS diode offers effective surge protection for a wide range of electronic applications, with its fast response time and low clamping voltage making it a reliable choice for safeguarding sensitive components against transient overvoltage events.

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