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CDLL4749A Encyclopedia Entry
Product Overview
Category
The CDLL4749A belongs to the category of Zener diodes.
Use
It is primarily used for voltage regulation and protection in electronic circuits.
Characteristics
- Voltage Regulation: Provides stable voltage output.
- Reverse Breakdown Voltage: 20V.
- Power Dissipation: 500mW.
- Operating Temperature Range: -65°C to +200°C.
Package
The CDLL4749A comes in a small, surface-mount package.
Essence
The essence of the CDLL4749A lies in its ability to maintain a constant voltage across a wide range of operating conditions.
Packaging/Quantity
Typically packaged in reels containing 3000 units.
Specifications
- Zener Voltage: 20V
- Tolerance: ±5%
- Maximum Reverse Leakage Current: 100nA
- Maximum Temperature Coefficient: 0.05%/°C
Detailed Pin Configuration
The CDLL4749A has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.
Functional Features
- Voltage Regulation: Maintains a constant voltage across varying loads.
- Overvoltage Protection: Safeguards sensitive components from excessive voltage.
Advantages
- Stable Voltage Output: Ensures consistent performance of connected circuits.
- Compact Size: Ideal for space-constrained applications.
- Wide Operating Temperature Range: Suitable for diverse environmental conditions.
Disadvantages
- Limited Power Dissipation: Not suitable for high-power applications.
- Tolerance Limitation: ±5% tolerance may not be sufficient for some precision applications.
Working Principles
The CDLL4749A operates based on the principle of the Zener effect, where it maintains a constant voltage drop across its terminals by allowing current to flow in reverse bias.
Detailed Application Field Plans
The CDLL4749A is commonly used in: - Voltage regulators - Overvoltage protection circuits - Portable electronic devices
Detailed and Complete Alternative Models
Some alternative models to the CDLL4749A include: - 1N4749A - BZX85C20 - MMBZ5249B
In conclusion, the CDLL4749A Zener diode offers reliable voltage regulation and overvoltage protection in a compact package, making it suitable for various electronic applications.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de CDLL4749A en soluciones técnicas
What is CDLL4749A?
- CDLL4749A is a type of Zener diode, which is a semiconductor device designed to maintain a specific voltage across its terminals.
What is the voltage rating of CDLL4749A?
- The voltage rating of CDLL4749A is 15V.
What are the typical applications of CDLL4749A?
- CDLL4749A is commonly used in voltage regulation, surge protection, and overvoltage protection circuits.
How does CDLL4749A provide voltage regulation?
- CDLL4749A operates in the reverse-biased breakdown region, where it maintains a nearly constant voltage across its terminals, providing voltage regulation.
Can CDLL4749A be used for transient voltage suppression?
- Yes, CDLL4749A can be used for transient voltage suppression to protect sensitive electronic components from voltage spikes.
What is the power dissipation rating of CDLL4749A?
- The power dissipation rating of CDLL4749A is typically around 500mW.
Is CDLL4749A suitable for low-power applications?
- Yes, CDLL4749A is suitable for low-power applications due to its relatively low power dissipation.
What is the temperature coefficient of CDLL4749A?
- The temperature coefficient of CDLL4749A is typically around -2mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Can CDLL4749A be used in automotive electronics?
- Yes, CDLL4749A can be used in automotive electronics for voltage regulation and transient suppression in various systems.
Are there any precautions to consider when using CDLL4749A?
- It's important to ensure proper heat dissipation and current limiting when using CDLL4749A to prevent overheating and damage to the device. Additionally, attention should be paid to the polarity and orientation of the diode in the circuit.