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SMCJ440A - Product Overview and Specifications
Introduction
The SMCJ440A is a part of the SMCJ series of transient voltage suppressor diodes designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This entry provides an overview of the SMCJ440A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.
Basic Information Overview
- Category: Transient Voltage Suppressor Diode
- Use: Protection against voltage transients induced by lightning and other transient voltage events
- Characteristics: High surge capability, low clamping voltage, fast response time
- Package: SMC (DO-214AB)
- Essence: Transient voltage suppression
- Packaging/Quantity: Tape & Reel (1000 units per reel)
Specifications
- Peak Power Dissipation: 1500W
- Breakdown Voltage: 440V
- Operating Voltage: 377V
- Clamping Voltage: 775V
- Peak Pulse Current: 50A
- Reverse Standoff Voltage: 376V
- Forward Voltage Drop: 3.5V
- Operating Temperature Range: -55°C to +150°C
Detailed Pin Configuration
The SMCJ440A follows the standard SMC (DO-214AB) package configuration with two leads.
Functional Features
- Transient Voltage Suppression: Provides protection against voltage transients by diverting excessive current away from sensitive electronic components.
- Fast Response Time: Responds quickly to transient voltage events, minimizing the risk of damage to connected equipment.
Advantages and Disadvantages
Advantages
- High surge capability
- Low clamping voltage
- Fast response time
Disadvantages
- Relatively high forward voltage drop
- Limited to specific voltage ratings
Working Principles
The SMCJ440A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the breakdown voltage, thereby protecting downstream electronics.
Detailed Application Field Plans
The SMCJ440A is commonly used in various applications, including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics
Detailed and Complete Alternative Models
- SMCJ5.0A: 5.0V Breakdown Voltage
- SMCJ10A: 10V Breakdown Voltage
- SMCJ24A: 24V Breakdown Voltage
- SMCJ58A: 58V Breakdown Voltage
- SMCJ130A: 130V Breakdown Voltage
In conclusion, the SMCJ440A is a reliable transient voltage suppressor diode with high surge capability and fast response time, making it suitable for various applications requiring protection against voltage transients.
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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng SMCJ440A trong giải pháp kỹ thuật
What is the maximum peak pulse current for SMCJ440A?
- The maximum peak pulse current for SMCJ440A is 10,000 A.
What is the breakdown voltage of SMCJ440A?
- The breakdown voltage of SMCJ440A is 484V.
What is the typical clamping voltage of SMCJ440A under surge conditions?
- The typical clamping voltage of SMCJ440A under surge conditions is 775V.
What are the typical applications for SMCJ440A?
- SMCJ440A is commonly used in transient voltage suppression for various electronic equipment, such as computers, telecommunication equipment, and consumer electronics.
What is the peak power dissipation of SMCJ440A?
- The peak power dissipation of SMCJ440A is 1.5 kW.
What is the operating temperature range for SMCJ440A?
- The operating temperature range for SMCJ440A is -55°C to +150°C.
Does SMCJ440A meet RoHS compliance?
- Yes, SMCJ440A is compliant with the Restriction of Hazardous Substances (RoHS) directive.
What is the package type for SMCJ440A?
- SMCJ440A is available in a DO-214AB (SMC) package.
Is SMCJ440A suitable for high-reliability applications?
- Yes, SMCJ440A is suitable for high-reliability applications due to its robust design and performance characteristics.
Can SMCJ440A be used for overvoltage protection in power supply systems?
- Yes, SMCJ440A is commonly used for overvoltage protection in power supply systems to safeguard sensitive components from voltage transients.