SMBJ78CA-M3/5B

Product Overview

The SMBJ78CA-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 high surge capability, fast response time, and low clamping voltage. The SMBJ78CA-M3/5B is typically packaged in a surface mount DO-214AA (SMB) package and is available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

• Part Number: SMBJ78CA-M3/5B
• Category: TVS Diodes
• Voltage Rating: 78V
• Peak Pulse Power: 600W
• Package Type: DO-214AA (SMB)
• Packaging: Tape and Reel, 3000 units per reel

Detailed Pin Configuration

The SMBJ78CA-M3/5B follows the standard pin configuration for SMB package diodes, with two pins for surface mounting onto circuit boards.

Functional Features

• High surge capability
• Fast response time
• Low clamping voltage
• Surface mount design for easy integration into circuit boards

Advantages and Disadvantages

Advantages

• Effective surge protection for sensitive electronic components
• Fast response time helps in minimizing damage from voltage spikes
• Compact surface mount package for space-constrained applications

Disadvantages

• May exhibit leakage current at lower voltages
• Limited power dissipation capability compared to larger TVS diode packages

Working Principles

The SMBJ78CA-M3/5B operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage away from the protected circuit when a surge occurs. This helps in limiting the voltage across the circuit to a safe level, protecting the connected components.

Detailed Application Field Plans

The SMBJ78CA-M3/5B is widely used in various electronic systems and equipment, including: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMBJ78CA-M3/5B include: - SMAJ78A: Similar TVS diode with a slightly different package (DO-214AC) - P6SMBJ78A: TVS diode with higher peak pulse power (600W) and a different package (DO-214AA)

In conclusion, the SMBJ78CA-M3/5B is a reliable TVS diode that offers effective surge protection for a wide range of electronic applications, despite its limitations in power dissipation and potential leakage current. Its fast response time and compact design make it a popular choice for engineers seeking to safeguard their circuits from voltage transients.