1N4749P/TR12
Product Overview
Category
The 1N4749P/TR12 belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and protection in electronic circuits.
Characteristics
- Zener voltage: 24V
- Power dissipation: 1.0W
- Package type: DO-41
- Operating temperature range: -65°C to +200°C
- Storage temperature range: -65°C to +200°C
- Packaging/quantity: Tape & Reel, 5000 per reel
Essence
The 1N4749P/TR12 is an essential component for maintaining stable voltage levels in various electronic applications.
Specifications
- Zener voltage: 24V
- Power dissipation: 1.0W
- Maximum forward voltage: 1.2V
- Reverse current: 5.0μA
- Temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4749P/TR12 has a standard DO-41 package with two leads. The cathode is marked with a band on the body of the diode.
Functional Features
- Precise voltage regulation
- Overvoltage protection
- Stable performance over a wide temperature range
Advantages
- High reliability
- Low impedance
- Compact size
Disadvantages
- Limited power dissipation capability
- Sensitive to temperature variations
Working Principles
The 1N4749P/TR12 operates based on the Zener effect, where it maintains a constant voltage drop across its terminals when reverse biased.
Detailed Application Field Plans
This Zener diode is widely used in: - Voltage regulators - Power supplies - Signal clamping circuits - Overvoltage protection circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4749P/TR12 include: - 1N4733A: 5.1V Zener diode - 1N4742A: 12V Zener diode - 1N4756A: 68V Zener diode
In conclusion, the 1N4749P/TR12 Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its compact size and high reliability make it suitable for a wide range of applications, despite its limitations in power dissipation and sensitivity to temperature changes. Additionally, there are alternative models available for different voltage requirements.
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What is the 1N4749P/TR12 diode used for?
- The 1N4749P/TR12 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the voltage rating of the 1N4749P/TR12 diode?
- The 1N4749P/TR12 has a nominal voltage of 24V, making it suitable for applications requiring a stable 24V reference voltage.
How does the 1N4749P/TR12 diode regulate voltage?
- The 1N4749P/TR12 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals to regulate the output voltage.
Can the 1N4749P/TR12 be used for overvoltage protection?
- Yes, the 1N4749P/TR12 can be employed to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.
What are the typical applications of the 1N4749P/TR12 diode?
- Common applications include voltage regulators, voltage references, overvoltage protection circuits, and power supply stabilization.
What is the maximum power dissipation of the 1N4749P/TR12 diode?
- The 1N4749P/TR12 has a maximum power dissipation of 1.0W, allowing it to handle moderate power levels in circuit designs.
Is the 1N4749P/TR12 suitable for automotive electronics?
- Yes, the 1N4749P/TR12 can be used in automotive applications where stable voltage regulation or overvoltage protection is required.
What is the temperature coefficient of the 1N4749P/TR12 diode?
- The temperature coefficient is typically around 5mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Can multiple 1N4749P/TR12 diodes be connected in series or parallel?
- Yes, multiple diodes can be connected in series to create higher voltage references or in parallel to increase current-handling capability.
Are there any specific layout considerations when using the 1N4749P/TR12 in a PCB design?
- It's important to ensure proper heat sinking and adequate trace widths to handle the current passing through the diode to maintain performance and reliability.