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SMDJ18A-HR English Editing Encyclopedia Entry
Product Overview
The SMDJ18A-HR belongs to the category of transient voltage suppressor diodes. These diodes are used to protect sensitive electronic components from voltage spikes and transients. The SMDJ18A-HR is characterized by its high reliability, fast response time, and compact package. It is typically available in a surface-mount package and is designed to dissipate transient overvoltage in electronic circuits.
Basic Information
- Category: Transient Voltage Suppressor Diode
- Use: Protection against voltage spikes and transients
- Characteristics: High reliability, fast response time
- Package: Surface-mount package
- Essence: Dissipation of transient overvoltage
- Packaging/Quantity: Typically available in reels or tubes with varying quantities
Specifications
- Voltage Rating: 18V
- Peak Pulse Power: 3000W
- Breakdown Voltage: 20.2V
- Operating Temperature Range: -55°C to +150°C
- Package Type: DO-214AB (SMC)
Detailed Pin Configuration
The SMDJ18A-HR typically follows the standard pin configuration for diodes, with two terminals for connection to the circuit. The specific pinout details can be found in the manufacturer's datasheet.
Functional Features
- Fast response to transient overvoltage events
- Low clamping voltage to protect downstream components
- Compact and space-saving surface-mount package
Advantages and Disadvantages
Advantages
- Effective protection against voltage spikes
- Fast response time
- Compact form factor
Disadvantages
- Limited maximum voltage rating
- May require additional circuitry for comprehensive surge protection
Working Principles
When a transient overvoltage occurs in the circuit, the SMDJ18A-HR rapidly conducts, diverting the excess energy away from the sensitive components. This action helps to limit the voltage across the protected circuit, preventing damage due to overvoltage events.
Detailed Application Field Plans
The SMDJ18A-HR is commonly used in various electronic systems and equipment where protection against voltage transients is essential. Some specific application fields include: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supply units - Consumer electronics
Detailed and Complete Alternative Models
- SMDJ5.0A-HR: 5V voltage rating, 3000W peak pulse power
- SMDJ12A-HR: 12V voltage rating, 3000W peak pulse power
- SMDJ24A-HR: 24V voltage rating, 3000W peak pulse power
- SMDJ36A-HR: 36V voltage rating, 3000W peak pulse power
In conclusion, the SMDJ18A-HR transient voltage suppressor diode offers reliable protection against voltage spikes and transients in a compact surface-mount package, making it suitable for a wide range of electronic applications.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SMDJ18A-HR in technische oplossingen
What is the maximum reverse voltage rating of SMDJ18A-HR?
- The maximum reverse voltage rating of SMDJ18A-HR is 18V.
What is the peak pulse power handling capability of SMDJ18A-HR?
- SMDJ18A-HR has a peak pulse power handling capability of 3000 watts for a 10/1000μs waveform.
What are the typical applications for SMDJ18A-HR?
- SMDJ18A-HR is commonly used in surge protection for sensitive electronics, such as telecommunications equipment, industrial control systems, and automotive electronics.
What is the breakdown voltage of SMDJ18A-HR?
- The breakdown voltage of SMDJ18A-HR is typically 20V.
What is the operating temperature range of SMDJ18A-HR?
- SMDJ18A-HR can operate within a temperature range of -55°C to +150°C.
Does SMDJ18A-HR have any certifications or compliance standards?
- Yes, SMDJ18A-HR is compliant with RoHS and REACH directives.
Can SMDJ18A-HR be used for ESD protection?
- Yes, SMDJ18A-HR can be used for electrostatic discharge (ESD) protection in various electronic circuits.
What is the package type of SMDJ18A-HR?
- SMDJ18A-HR is available in a surface mount DO-214AB package.
Is SMDJ18A-HR suitable for high-reliability applications?
- Yes, SMDJ18A-HR is designed for high-reliability applications and has a high surge capability.
Are there any recommended layout considerations when using SMDJ18A-HR in a circuit?
- It is recommended to minimize the length of the PCB traces connecting SMDJ18A-HR to the circuit and to provide adequate thermal management for optimal performance.