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1N4476 BK - Diode Encyclopedia Entry
Product Overview
Category:
The 1N4476 BK is a Zener diode, which falls under the category of semiconductor devices.
Use:
Zener diodes are primarily used for voltage regulation and protection in electronic circuits.
Characteristics:
- The 1N4476 BK has a specific breakdown voltage and exhibits the Zener effect, allowing it to maintain a constant voltage across its terminals.
- It is designed to operate in the reverse-bias direction.
Package:
The 1N4476 BK is typically available in a through-hole package, with standard lead spacing.
Essence:
This Zener diode is essential for maintaining stable voltage levels in various electronic applications.
Packaging/Quantity:
It is commonly packaged in reels or tubes, with quantities varying based on manufacturer specifications.
Specifications
- Voltage Rating: 12V
- Power Dissipation: 500mW
- Operating Temperature Range: -65°C to +200°C
- Zener Impedance: 20Ω
Detailed Pin Configuration
The 1N4476 BK features two leads, with the anode connected to the positive terminal and the cathode connected to the negative terminal.
Functional Features
The primary function of the 1N4476 BK is to regulate voltage by allowing current to flow in the reverse direction when the applied voltage reaches the Zener breakdown voltage.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Protection against voltage spikes
- Compact size
Disadvantages
- Limited power dissipation capability
- Sensitivity to temperature variations
Working Principles
When the voltage across the diode reaches the specified Zener voltage, it begins to conduct in the reverse direction, effectively regulating the voltage across its terminals.
Detailed Application Field Plans
The 1N4476 BK finds extensive use in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4476 BK include: - 1N746A - BZX55C12 - 1N4742A
In conclusion, the 1N4476 BK Zener diode serves as a crucial component in electronic circuits, providing precise voltage regulation and protection. Its characteristics, specifications, and application field plans make it a valuable asset in the realm of electronics.
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What is the 1N4476 BK diode used for?
- The 1N4476 BK diode is commonly used for general-purpose rectification and power supply applications.
What are the key specifications of the 1N4476 BK diode?
- The 1N4476 BK diode typically has a maximum repetitive peak reverse voltage of 1000V, a forward current of 3A, and a forward voltage drop of around 1V at 3A.
Can the 1N4476 BK diode be used in high-voltage applications?
- Yes, the 1N4476 BK diode's high peak reverse voltage makes it suitable for use in high-voltage applications such as power supplies and inverters.
Is the 1N4476 BK diode suitable for fast-switching applications?
- No, the 1N4476 BK diode is not designed for fast-switching applications due to its relatively slow recovery time.
What are some common circuit configurations where the 1N4476 BK diode is used?
- The 1N4476 BK diode is often used in full-wave rectifier circuits, bridge rectifiers, and general-purpose power supply circuits.
Does the 1N4476 BK diode require a heatsink for certain applications?
- Yes, in high-current or high-power applications, it is recommended to use a heatsink to dissipate heat and ensure the diode operates within its temperature limits.
Can the 1N4476 BK diode be used in automotive applications?
- Yes, the 1N4476 BK diode can be used in automotive applications such as alternator rectification and other power electronics systems.
What are the typical operating temperatures for the 1N4476 BK diode?
- The 1N4476 BK diode is typically rated for operation within the temperature range of -65°C to 175°C.
Are there any specific precautions to consider when using the 1N4476 BK diode in circuits?
- It is important to observe proper polarity and voltage ratings to prevent damage to the diode, and to ensure adequate cooling in high-power applications.
Where can I find detailed application notes and guidelines for using the 1N4476 BK diode?
- Detailed application notes and guidelines for the 1N4476 BK diode can be found in the manufacturer's datasheet and application notes, as well as in technical reference manuals for power supply and rectification circuits.