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1N4729A TR
Product Overview
The 1N4729A TR is a Zener diode belonging to the semiconductor category. It is commonly used for voltage regulation and transient suppression in electronic circuits. This diode is characterized by its stable and precise voltage regulation capabilities, making it suitable for a wide range of applications. The 1N4729A TR is typically available in a small, cylindrical package and is sold in various packaging quantities to accommodate different production needs.
Specifications
- Voltage: 3.3V
- Power Dissipation: 1.0W
- Zener Voltage Tolerance: ±5%
- Operating Temperature Range: -65°C to +200°C
- Package Type: DO-41
- Packaging Quantity: Available in reels or bulk packaging
Detailed Pin Configuration
The 1N4729A TR has two pins, with the cathode being shorter than the anode. The pinout configuration is as follows: - Anode (A) - Cathode (K)
Functional Features
The 1N4729A TR provides a stable voltage output when operated within its specified parameters. It exhibits sharp breakdown characteristics, allowing it to effectively regulate voltage and protect sensitive components in a circuit from overvoltage conditions.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Voltage tolerance of ±5% may not be suitable for highly precise applications
Working Principles
The 1N4729A TR operates based on the principle of the Zener effect, where it maintains a constant voltage drop across its terminals when reverse-biased. This allows it to regulate the voltage in a circuit by diverting excess current when the voltage exceeds its rated value.
Detailed Application Field Plans
The 1N4729A TR finds extensive use in various electronic applications, including: - Voltage regulation in power supplies - Overvoltage protection in communication systems - Signal clamping in audio circuits - Transient suppression in automotive electronics
Detailed and Complete Alternative Models
For applications requiring different voltage ratings or specifications, alternative models to consider include: - 1N4733A TR (5.1V Zener voltage) - 1N4740A TR (10V Zener voltage) - 1N4764A TR (33V Zener voltage)
In conclusion, the 1N4729A TR Zener diode offers precise voltage regulation and transient suppression capabilities, making it a versatile component in electronic circuits across various industries.
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What is the 1N4729A TR?
- The 1N4729A TR is a 1W Zener diode with a voltage rating of 3.6V, commonly used in electronic circuits for voltage regulation and protection.
How does the 1N4729A TR work?
- The 1N4729A TR operates by allowing current to flow in the forward direction like a normal diode, but also permits it to flow in the reverse direction when the voltage reaches its breakdown voltage, effectively maintaining a constant voltage across its terminals.
What are the typical applications of the 1N4729A TR?
- Common applications include voltage regulation in power supplies, overvoltage protection in circuits, and as a reference voltage source in various electronic devices.
What is the maximum power dissipation of the 1N4729A TR?
- The 1N4729A TR has a maximum power dissipation of 1 watt, making it suitable for low to moderate power applications.
What is the temperature coefficient of the 1N4729A TR?
- The temperature coefficient of the 1N4729A TR is typically around -2.2mV/°C, indicating a relatively stable voltage output over a range of temperatures.
Can the 1N4729A TR be used for reverse polarity protection?
- Yes, the 1N4729A TR can be employed for reverse polarity protection by placing it in series with the positive supply rail, preventing damage to sensitive components in case of reverse voltage application.
What is the maximum forward voltage drop of the 1N4729A TR?
- The maximum forward voltage drop of the 1N4729A TR is around 1.2V at a forward current of 200mA.
Is the 1N4729A TR suitable for high-frequency applications?
- While the 1N4729A TR can function at moderate frequencies, it may not be ideal for high-frequency applications due to its inherent capacitance and response time.
What are the key differences between the 1N4729A TR and similar Zener diodes?
- The 1N4729A TR differs primarily in its breakdown voltage (3.6V) and power dissipation (1W), distinguishing it from other Zener diodes with different specifications.
Are there any precautions to consider when using the 1N4729A TR?
- It's important to ensure that the maximum power dissipation and current ratings are not exceeded, and to provide adequate heat sinking if operating near the maximum ratings to prevent overheating and potential failure.