SMCJ18 - English Editing Encyclopedia Entry
Product Overview
Category
SMCJ18 belongs to the category of transient voltage suppressor diodes.
Use
It is used for protecting sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.
Characteristics
- Fast response time
- Low clamping voltage
- High surge current capability
Package
SMCJ18 is typically available in a DO-214AB (SMC) package.
Essence
The essence of SMCJ18 lies in its ability to provide robust protection against transient voltage events, ensuring the safety and reliability of electronic circuits.
Packaging/Quantity
It is commonly packaged in reels or trays with varying quantities depending on the manufacturer's specifications.
Specifications
- Standoff Voltage: 18V
- Breakdown Voltage: 20.1V
- Maximum Clamping Voltage: 29.2V
- Peak Pulse Current: 30A
- Operating Temperature Range: -55°C to 150°C
Detailed Pin Configuration
The SMCJ18 diode has two pins, anode, and cathode. The anode is connected to the positive side of the circuit, while the cathode is connected to the ground or negative side.
Functional Features
- Transient voltage suppression
- Fast response to voltage transients
- Low leakage current
- High surge current handling capability
Advantages and Disadvantages
Advantages
- Effective protection against transient voltage events
- Fast response time
- Low clamping voltage
Disadvantages
- Limited power dissipation capability
- May require additional circuitry for comprehensive overvoltage protection
Working Principles
When a transient voltage event occurs, the SMCJ18 diode conducts and clamps the voltage to a safe level, diverting the excess energy away from the protected circuit. This action helps prevent damage to the sensitive electronic components.
Detailed Application Field Plans
SMCJ18 is widely used in various applications including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models to SMCJ18 include: - P6SMB18CA - 1.5SMC18CA - SMBJ18A
In conclusion, SMCJ18 transient voltage suppressor diode offers effective protection against transient voltage events, making it an essential component in safeguarding electronic equipment. Its fast response time, low clamping voltage, and high surge current capability make it suitable for a wide range of applications across different industries.
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技術ソリューションにおける SMCJ18 の適用に関連する 10 件の一般的な質問と回答をリストします。
What is the maximum peak pulse current for SMCJ18?
- The maximum peak pulse current for SMCJ18 is 300A.
What is the breakdown voltage of SMCJ18?
- The breakdown voltage of SMCJ18 is 20V.
What is the power dissipation of SMCJ18 under steady state conditions?
- The power dissipation of SMCJ18 under steady state conditions is 1.5W.
What is the typical clamping voltage of SMCJ18 at its peak pulse current rating?
- The typical clamping voltage of SMCJ18 at its peak pulse current rating is 29.2V.
What are the typical applications for SMCJ18 in technical solutions?
- SMCJ18 is commonly used in surge protection for telecommunications equipment, power supplies, and other sensitive electronic devices.
What is the response time of SMCJ18 to a transient overvoltage event?
- The response time of SMCJ18 to a transient overvoltage event is less than 1 picosecond.
What is the operating temperature range for SMCJ18?
- The operating temperature range for SMCJ18 is -55°C to +150°C.
Does SMCJ18 meet the requirements of RoHS compliance?
- Yes, SMCJ18 is compliant with the Restriction of Hazardous Substances (RoHS) directive.
What is the package type for SMCJ18?
- SMCJ18 is available in a DO-214AB (SMC) package.
Is SMCJ18 suitable for high-speed data line protection?
- Yes, SMCJ18 is suitable for high-speed data line protection due to its fast response time and low clamping voltage.