Xem thông số kỹ thuật để biết chi tiết sản phẩm.
1N749A TR
Product Overview
Category
The 1N749A TR belongs to the category of semiconductor diodes.
Use
It is commonly used for rectification, signal demodulation, and voltage regulation in electronic circuits.
Characteristics
- Forward Voltage: 0.7V
- Reverse Voltage: 200V
- Maximum Continuous Current: 500mA
- Fast Switching Speed
Package
The 1N749A TR is typically available in a DO-35 package.
Packaging/Quantity
It is usually supplied in reels or tubes with varying quantities depending on the manufacturer.
Specifications
- Type: Silicon Rectifier Diode
- Maximum Reverse Voltage: 200V
- Forward Current: 500mA
- Operating Temperature Range: -65°C to +175°C
- Storage Temperature Range: -65°C to +175°C
Detailed Pin Configuration
The 1N749A TR has two pins, an anode, and a cathode. The anode is connected to the P-type semiconductor material, while the cathode is connected to the N-type semiconductor material.
Functional Features
- High reliability and ruggedness
- Fast switching speed
- Low forward voltage drop
- Good temperature and power cycling performance
Advantages and Disadvantages
Advantages
- Reliable and durable
- Fast response time
- Low power dissipation
Disadvantages
- Limited maximum reverse voltage compared to other diodes
- Sensitive to temperature variations
Working Principles
The 1N749A TR operates based on the principle of the P-N junction, allowing current to flow in one direction while blocking it in the opposite direction. When a forward bias is applied, the diode conducts, allowing current to flow. In reverse bias, the diode blocks the current flow.
Detailed Application Field Plans
The 1N749A TR is widely used in: - Power supply units - Signal demodulation circuits - Voltage regulation circuits - Electronic equipment protection circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N749A TR include: - 1N4001: General-purpose rectifier diode - 1N4148: High-speed switching diode - 1N5819: Schottky diode
In conclusion, the 1N749A TR is a reliable and versatile semiconductor diode suitable for various electronic applications due to its fast switching speed, low forward voltage, and high reliability.
[Word Count: 346]
Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng 1N749A TR trong giải pháp kỹ thuật
What is the 1N749A TR diode used for?
- The 1N749A TR diode is commonly used for voltage regulation and protection in electronic circuits.
What is the maximum forward current rating of the 1N749A TR diode?
- The maximum forward current rating of the 1N749A TR diode is typically around 200 mA.
What is the reverse voltage rating of the 1N749A TR diode?
- The reverse voltage rating of the 1N749A TR diode is usually around 100 V.
Can the 1N749A TR diode be used for rectification purposes?
- Yes, the 1N749A TR diode can be used for low-power rectification applications.
What are the typical applications of the 1N749A TR diode?
- Typical applications include voltage clamping, freewheeling diode in inductive load circuits, and general-purpose diode applications.
What is the temperature range for the 1N749A TR diode?
- The 1N749A TR diode is typically rated for operation within a temperature range of -65°C to 175°C.
Is the 1N749A TR diode suitable for high-frequency applications?
- No, the 1N749A TR diode is not recommended for high-frequency applications due to its relatively slow recovery time.
Can the 1N749A TR diode be used in automotive electronics?
- Yes, the 1N749A TR diode can be used in certain automotive electronic systems, such as low-power control circuits.
What are the key characteristics of the 1N749A TR diode?
- Key characteristics include low forward voltage drop, fast reverse recovery time, and low leakage current.
Are there any common failure modes associated with the 1N749A TR diode?
- Common failure modes may include overcurrent damage, reverse voltage breakdown, and thermal overstress. Regular testing and proper application design can help mitigate these risks.