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1N4678 BK - Encyclopedia Entry
Product Overview
The 1N4678 BK is a semiconductor diode belonging to the category of Zener diodes. It is commonly used for voltage regulation and stabilization in electronic circuits. The diode exhibits specific electrical characteristics, comes in various package types, and is available in different packaging quantities.
Basic Information
- Category: Zener Diode
- Use: Voltage regulation and stabilization
- Characteristics: Precise breakdown voltage, low dynamic resistance
- Package Types: DO-41, SOD-123, SOD-323
- Packaging/Quantity: Bulk, Tape & Reel, Cut Tape
Specifications
The 1N4678 BK has the following specifications: - Voltage Range: 3.3V to 100V - Power Dissipation: 500mW - Operating Temperature: -65°C to +200°C - Zener Test Current: 20mA
Detailed Pin Configuration
The 1N4678 BK typically has two pins, anode and cathode, with the cathode being marked by a band or notch on the diode body.
Functional Features
The diode operates as a voltage regulator by maintaining a constant output voltage across its terminals, even when there are variations in the input voltage or load conditions.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Low dynamic resistance
- Compact size
Disadvantages
- Limited power dissipation capability
- Sensitivity to temperature variations
Working Principles
When the voltage across the diode reaches the specified breakdown voltage, it starts conducting in the reverse bias direction, effectively regulating the voltage across its terminals.
Detailed Application Field Plans
The 1N4678 BK finds applications in various electronic circuits such as: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4678 BK include: - 1N4728A - 1N4733A - BZX55C3V3
In conclusion, the 1N4678 BK Zener diode serves as a crucial component in electronic circuits, providing precise voltage regulation and stabilization. Its characteristics, specifications, and application field plans make it a versatile choice for various electronic designs.
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What is the 1N4678 BK diode used for?
- The 1N4678 BK diode is commonly used for voltage regulation and protection in electronic circuits.
What is the maximum forward voltage of the 1N4678 BK diode?
- The maximum forward voltage of the 1N4678 BK diode is typically around 1.1 volts at a forward current of 20 mA.
What is the reverse breakdown voltage of the 1N4678 BK diode?
- The reverse breakdown voltage of the 1N4678 BK diode is 75 volts, making it suitable for low to medium voltage applications.
Can the 1N4678 BK diode handle high currents?
- No, the 1N4678 BK diode is designed for low to moderate current applications, typically up to 20 mA.
Is the 1N4678 BK diode suitable for use in automotive electronics?
- Yes, the 1N4678 BK diode can be used in automotive electronics for voltage regulation and protection purposes.
What are the typical applications of the 1N4678 BK diode?
- Typical applications include voltage clamping, overvoltage protection, and general purpose rectification in electronic circuits.
Does the 1N4678 BK diode require a heat sink for normal operation?
- No, the 1N4678 BK diode typically does not require a heat sink for normal operation due to its low power dissipation.
What is the temperature range for the 1N4678 BK diode?
- The 1N4678 BK diode is typically rated for a temperature range of -65°C to +175°C, making it suitable for a wide range of operating conditions.
Can the 1N4678 BK diode be used in high-frequency applications?
- While it can be used in some high-frequency applications, the 1N4678 BK diode is more commonly used in low to moderate frequency circuits.
Are there any specific soldering or handling precautions for the 1N4678 BK diode?
- Standard ESD (electrostatic discharge) precautions should be followed when handling the 1N4678 BK diode, and care should be taken to avoid overheating during soldering to prevent damage to the device.