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SMBJ440 Product Overview
Introduction
The SMBJ440 is a crucial component in the field of electronics and electrical engineering. This entry will provide an in-depth understanding of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and detailed and complete alternative models.
Product Information Overview
Category
The SMBJ440 belongs to the category of transient voltage suppressor (TVS) diodes.
Use
It is primarily used for surge protection in electronic circuits to safeguard sensitive components from voltage spikes and transients.
Characteristics
- Fast response time
- Low clamping voltage
- High surge current capability
Package
The SMBJ440 is typically available in a surface-mount package.
Essence
The essence of the SMBJ440 lies in its ability to rapidly clamp transient voltages to a safe level, thereby protecting downstream components.
Packaging/Quantity
It is commonly packaged in reels or tubes, with quantities varying based on manufacturer specifications.
Specifications
The SMBJ440 has the following key specifications: - Standoff Voltage: 440V - Breakdown Voltage: 488V - Peak Pulse Power: 600W - Operating Temperature Range: -55°C to 150°C - RoHS compliant
Detailed Pin Configuration
The SMBJ440 typically features a unidirectional configuration with two pins. The anode is connected to the positive side, while the cathode is connected to the negative side.
Functional Features
The primary functional feature of the SMBJ440 is its ability to rapidly divert excessive current away from sensitive components when a transient voltage event occurs. This ensures that the voltage across the protected circuit remains within safe limits.
Advantages and Disadvantages
Advantages
- Rapid response time
- Effective protection against voltage surges
- Compact form factor
Disadvantages
- Limited power dissipation capability
- May require additional circuitry for comprehensive surge protection
Working Principles
When a transient voltage surge occurs, the SMBJ440 rapidly conducts excess current, limiting the voltage across the circuit. This is achieved through the process of avalanche breakdown, where the diode enters a high-conductance state to shunt the excess energy.
Detailed Application Field Plans
The SMBJ440 finds extensive use in various applications, including: - Power supply units - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics
Detailed and Complete Alternative Models
Several alternative models to the SMBJ440 include: - SMAJ5.0A - SMCJ12A - P6KE200A - 1.5KE18CA
In conclusion, the SMBJ440 plays a critical role in ensuring the reliability and longevity of electronic systems by providing robust surge protection. Its fast response time, low clamping voltage, and high surge current capability make it an indispensable component in modern electronic designs.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMBJ440 v technických řešeních
What is the maximum working voltage of SMBJ440?
- The maximum working voltage of SMBJ440 is 440 volts.
What is the peak pulse power of SMBJ440?
- The peak pulse power of SMBJ440 is 600 watts for a 10/1000μs waveform.
What is the typical clamping voltage of SMBJ440?
- The typical clamping voltage of SMBJ440 is 710 volts at 1 amp.
What are the typical applications of SMBJ440?
- SMBJ440 is commonly used in surge protection for sensitive electronics, such as telecommunications equipment, industrial control systems, and automotive electronics.
What is the operating temperature range of SMBJ440?
- The operating temperature range of SMBJ440 is -55°C to +150°C.
Is SMBJ440 RoHS compliant?
- Yes, SMBJ440 is RoHS compliant, making it suitable for use in environmentally sensitive applications.
What is the package type of SMBJ440?
- SMBJ440 is available in a surface mount DO-214AA (SMB) package.
Does SMBJ440 have a low leakage current?
- Yes, SMBJ440 has a low leakage current, which is ideal for applications requiring minimal power loss.
Can SMBJ440 be used for overvoltage protection in power supply units?
- Yes, SMBJ440 is suitable for overvoltage protection in power supply units and other electronic circuits.
What are the key features of SMBJ440?
- The key features of SMBJ440 include fast response time, low clamping voltage, and high surge capability, making it an effective solution for transient voltage suppression.