SMBJ12-E3/52

Product Overview

The SMBJ12-E3/52 belongs to the category of transient voltage suppressor diodes. These diodes are designed to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. The SMBJ12-E3/52 is characterized by its high surge capability, low clamping voltage, and fast response time. It is available in a compact package and is commonly used in various electronic applications.

Basic Information

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage transients
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: SMB (DO-214AA)
• Essence: Protecting sensitive electronic components
• Packaging/Quantity: Available in reels with varying quantities

Specifications

• Peak Power Dissipation: 600W
• Breakdown Voltage Range: 10.5V to 12.2V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ12-E3/52 typically consists of two pins, with the anode connected to one pin and the cathode connected to the other. The pinout configuration follows industry standards for SMB packages.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to a safe level.
• Fast Response Time: Rapid reaction to voltage transients, minimizing the risk of damage to downstream components.
• High Surge Capability: Able to withstand high surge currents without degradation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Compact package size

Disadvantages

• Limited to specific voltage ranges
• May require additional circuitry for comprehensive overvoltage protection

Working Principles

The SMBJ12-E3/52 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 effectively limits the voltage across the circuit to a safe level, preventing damage to sensitive components.

Detailed Application Field Plans

The SMBJ12-E3/52 finds extensive use in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Automotive Electronics: Safeguarding vehicle electronics from voltage transients. - Industrial Control Systems: Ensuring the reliability of control circuitry in harsh environments.

Detailed and Complete Alternative Models

• SMBJ10A-E3/52: Similar specifications with a lower breakdown voltage range.
• SMBJ15A-E3/52: Similar specifications with a higher breakdown voltage range.
• SMBJ12CA-E3/52: Higher peak power dissipation with similar breakdown voltage.

In conclusion, the SMBJ12-E3/52 transient voltage suppressor diode offers effective protection against voltage transients in a compact package, making it a valuable component in various electronic applications.

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