SMBJ54AHE3/52

Product Overview

The SMBJ54AHE3/52 belongs to the category of transient voltage suppressor diodes. These diodes are designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. The SMBJ54AHE3/52 is characterized by its high surge capability, low clamping voltage, and fast response time. It comes in a compact SMB package and is available in tape and reel packaging with a quantity of 1800 units per reel.

Specifications

• Part Number: SMBJ54AHE3/52
• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage transients
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: SMB
• Packaging/Quantity: Tape and Reel, 1800 units per reel

Detailed Pin Configuration

The SMBJ54AHE3/52 features a standard SMB package with two pins. Pin 1 is the anode, and pin 2 is the cathode.

Functional Features

• High Surge Capability: The SMBJ54AHE3/52 can withstand high surge currents, making it suitable for applications exposed to frequent voltage transients.
• Low Clamping Voltage: It provides effective clamping of transient voltages, limiting the voltage across the protected circuit.
• Fast Response Time: The diode responds rapidly to transient events, offering swift protection to the connected electronics.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Compact SMB package for space-constrained applications
• High surge capability ensures robust performance

Disadvantages

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

Working Principles

The SMBJ54AHE3/52 operates based on the principle of avalanche breakdown. When a transient voltage spike occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit. This action helps to limit the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMBJ54AHE3/52 finds extensive use in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Industrial Control Systems: Safeguarding control circuits from inductive load switching transients. - Consumer Electronics: Shielding sensitive electronic devices from electrostatic discharge events.

Detailed and Complete Alternative Models

• SMBJ5.0A: Similar characteristics and package, with a slightly lower clamping voltage.
• SMBJ58CA: Higher surge capability and lower clamping voltage, suitable for more demanding applications.
• SMBJ54A: Standard version with comparable specifications but without the "HE3/52" suffix.

In conclusion, the SMBJ54AHE3/52 transient voltage suppressor diode offers reliable protection against voltage transients in a compact SMB package. Its high surge capability, low clamping voltage, and fast response time make it a preferred choice for diverse electronic applications.

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