SMCJ30A-QH Encyclopedia Entry

Product Overview

The SMCJ30A-QH belongs to the category of transient voltage suppressor diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and transients. The SMCJ30A-QH is designed to provide robust protection against transient overvoltage conditions in a variety of applications.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage spikes and transients
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: SMC (DO-214AB) package
• Essence: Safeguarding electronic circuits from voltage surges
• Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

• Peak Power Dissipation: 1500W
• Breakdown Voltage: 30V
• Clamping Voltage: 48.4V
• Operating Temperature Range: -55°C to 150°C
• Polarity: Unidirectional

Detailed Pin Configuration

The SMCJ30A-QH diode has a standard SMC package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast response to transient overvoltage conditions
• Low clamping voltage to protect downstream components
• High surge current capability for reliable protection

Advantages and Disadvantages

Advantages

• Effective protection against voltage spikes
• Fast response time
• Compact SMC package for space-constrained applications

Disadvantages

• Limited breakdown voltage compared to higher-rated diodes
• Higher clamping voltage than some specialized diodes

Working Principles

The SMCJ30A-QH operates based on the principle of avalanche breakdown. When a voltage spike occurs, the diode rapidly conducts, diverting excess current away from the protected circuit. This action limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMCJ30A-QH is widely used in various electronic systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Several alternative models to the SMCJ30A-QH include: - SMCJ28A-QH - SMCJ33A-QH - SMCJ36A-QH - SMCJ40A-QH

These alternatives offer different breakdown voltages and clamping voltages to suit specific application requirements.

In conclusion, the SMCJ30A-QH transient voltage suppressor diode provides effective protection against transient overvoltage events in a wide range of electronic applications. Its fast response time, high surge current capability, and compact package make it a popular choice for engineers seeking reliable overvoltage protection.

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