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1SMA5940BT3
Product Overview
Category
The 1SMA5940BT3 belongs to the category of surface mount silicon Zener diodes.
Use
It is primarily used for voltage regulation and transient suppression in electronic circuits.
Characteristics
- Voltage regulation capability
- Transient suppression
- Surface mount design
Package
The 1SMA5940BT3 is typically available in a SOD-123 package.
Essence
This product is essential for stabilizing voltage levels and protecting electronic components from voltage spikes.
Packaging/Quantity
The 1SMA5940BT3 is commonly packaged in reels with quantities varying based on manufacturer specifications.
Specifications
- Zener Voltage: 12V
- Power Dissipation: 1.5W
- Operating Temperature Range: -65°C to +150°C
- Forward Voltage: 1.5V
- Reverse Leakage Current: 5µA
Detailed Pin Configuration
The 1SMA5940BT3 has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.
Functional Features
- Precise voltage regulation
- Fast response to transient events
- Compact surface mount design
Advantages and Disadvantages
Advantages
- High precision voltage regulation
- Fast transient response
- Space-saving surface mount design
Disadvantages
- Limited power dissipation capability
- Vulnerable to high current surges
Working Principles
The 1SMA5940BT3 operates based on the principle of Zener breakdown, where it maintains a constant voltage across its terminals by conducting in reverse-bias mode when the voltage exceeds the Zener voltage.
Detailed Application Field Plans
The 1SMA5940BT3 is widely used in: - Voltage regulation in power supplies - Surge protection in communication equipment - Overvoltage protection in automotive electronics
Detailed and Complete Alternative Models
Some alternative models to the 1SMA5940BT3 include: - 1N4742A - BZX85C12 - P6SMB12CA
In conclusion, the 1SMA5940BT3 is a crucial component in electronic circuits, providing precise voltage regulation and transient suppression. Its compact design and functional features make it suitable for various applications, although it has limitations in power dissipation and current handling capabilities.
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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng 1SMA5940BT3 trong giải pháp kỹ thuật
What is the 1SMA5940BT3?
- The 1SMA5940BT3 is a surface mount, high-power, transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.
What is the maximum peak pulse power of the 1SMA5940BT3?
- The maximum peak pulse power of the 1SMA5940BT3 is 400 watts.
What is the breakdown voltage of the 1SMA5940BT3?
- The breakdown voltage of the 1SMA5940BT3 is 40 volts.
What are the typical applications for the 1SMA5940BT3?
- Typical applications for the 1SMA5940BT3 include protection of power buses, power supplies, and other vulnerable equipment from voltage transients.
What is the operating temperature range of the 1SMA5940BT3?
- The operating temperature range of the 1SMA5940BT3 is -55°C to +150°C.
What is the peak pulse current capability of the 1SMA5940BT3?
- The peak pulse current capability of the 1SMA5940BT3 is 19.2A.
What is the package type of the 1SMA5940BT3?
- The 1SMA5940BT3 comes in a DO-214AC (SMA) package.
What are the key features of the 1SMA5940BT3?
- Key features of the 1SMA5940BT3 include low clamping voltage, fast response time, and high surge capability.
What are the recommended board layout guidelines for the 1SMA5940BT3?
- It is recommended to keep the traces short and direct between the 1SMA5940BT3 and the protected circuitry, and to provide adequate clearance and isolation from other components.
How does the 1SMA5940BT3 compare to similar transient voltage suppressor diodes?
- The 1SMA5940BT3 offers higher peak pulse power and lower clamping voltage compared to many similar devices, making it suitable for demanding transient suppression applications.