SMAJ78 Product Overview
Product Category
The SMAJ78 belongs to the category of transient voltage suppressor diodes.
Basic Information Overview
- Use: The SMAJ78 is used for transient voltage suppression in electronic circuits to protect sensitive components from voltage spikes.
- Characteristics: It has a low clamping voltage and fast response time, making it suitable for surge protection.
- Package: The SMAJ78 is typically available in a DO-214AC (SMA) package.
- Essence: Its essence lies in providing reliable overvoltage protection for various electronic applications.
- Packaging/Quantity: It is commonly packaged in reels or tubes, with quantities varying based on manufacturer specifications.
Specifications
- Voltage Rating: 78V
- Peak Pulse Power: 400W
- Operating Temperature Range: -55°C to +150°C
- Storage Temperature Range: -55°C to +150°C
Detailed Pin Configuration
The SMAJ78 typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.
Functional Features
- Transient Voltage Suppression: Provides protection against voltage transients and surges.
- Fast Response Time: Rapidly clamps voltage spikes to a safe level, safeguarding connected components.
Advantages and Disadvantages
Advantages
- Effective surge protection
- Fast response time
- Compact size
Disadvantages
- Limited power dissipation capability
- May require additional circuitry for comprehensive surge protection
Working Principles
The SMAJ78 operates by diverting excess current away from sensitive components when a voltage surge occurs. It rapidly clamps the voltage to a safe level, preventing damage to the circuit.
Detailed Application Field Plans
The SMAJ78 is widely used in various applications, including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems
Detailed and Complete Alternative Models
Some alternative models to SMAJ78 include: - P6SMB78CA - 1.5KE78A - SA78CA
In conclusion, the SMAJ78 transient voltage suppressor diode offers effective surge protection with its fast response time and compact design. While it has limitations in power dissipation, it finds extensive use in diverse electronic applications.
[Word Count: 314]
技術ソリューションにおける SMAJ78 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 SMAJ78?
- SMAJ78 is a type of TVS (transient voltage suppressor) diode, designed to protect sensitive electronics from voltage spikes and transients.
What is the maximum peak pulse power of SMAJ78?
- The maximum peak pulse power of SMAJ78 is typically 400 watts.
What is the breakdown voltage of SMAJ78?
- The breakdown voltage of SMAJ78 is 78 volts.
How does SMAJ78 protect electronic circuits?
- SMAJ78 clamps transient voltages to a safe level, preventing damage to sensitive components by diverting excess current away from the circuit.
In what applications is SMAJ78 commonly used?
- SMAJ78 is commonly used in telecommunications equipment, industrial control systems, automotive electronics, and other applications where protection against voltage surges is critical.
What is the response time of SMAJ78?
- The response time of SMAJ78 is very fast, typically responding within nanoseconds to clamp transient voltages.
Can SMAJ78 be used for overvoltage protection in power supplies?
- Yes, SMAJ78 can be used to protect power supplies from voltage spikes and surges.
Is SMAJ78 suitable for high-speed data lines?
- Yes, SMAJ78 is suitable for protecting high-speed data lines such as USB, Ethernet, and HDMI interfaces.
What are the temperature specifications for SMAJ78?
- SMAJ78 is typically rated for operation over a temperature range of -55°C to 150°C.
Are there any alternatives to SMAJ78 for transient voltage suppression?
- Yes, other alternatives include SMBJ78, SMCJ78, and other TVS diodes with different form factors and characteristics.