1N4746 G - Semiconductor Diode
Product Overview
Category:
The 1N4746 G is a semiconductor diode belonging to the Zener diode category.
Use:
It is commonly used for voltage regulation and stabilization in electronic circuits.
Characteristics:
- Zener voltage: 18V
- 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: Available in reels or bulk packaging, quantity varies by supplier
Specifications:
- Zener voltage: 18V
- Power dissipation: 1.0W
- Maximum forward voltage: 1.2V
- Reverse current: 5μA
- Temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4746 G has two pins, anode and cathode, with the cathode being marked with a band on the body of the diode.
Functional Features
The 1N4746 G operates as a voltage regulator, allowing current to flow in the forward direction like a normal diode, but also in the reverse direction when the voltage applied across it exceeds the breakdown voltage.
Advantages and Disadvantages
Advantages:
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages:
- Limited power dissipation capability
- Sensitivity to temperature variations
Working Principles
When the voltage across the 1N4746 G exceeds its Zener voltage, it begins to conduct in the reverse direction, effectively maintaining a constant voltage drop across its terminals.
Detailed Application Field Plans
The 1N4746 G is widely used in various electronic circuits such as: - Voltage regulators - Power supplies - Signal clamping circuits - Overvoltage protection circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4746 G include: - 1N4732A (4.7V Zener voltage) - 1N4742A (12V Zener voltage) - 1N4748A (22V Zener voltage)
In conclusion, the 1N4746 G is a crucial component in electronic circuits requiring precise voltage regulation and stabilization. Its compact size and wide operating temperature range make it suitable for various applications, despite its limitations in power dissipation and sensitivity to temperature variations.
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技術ソリューションにおける 1N4746 G の適用に関連する 10 件の一般的な質問と回答をリストします。
What is the 1N4746 G diode used for?
- The 1N4746 G is a Zener diode commonly used for voltage regulation and stabilization in electronic circuits.
What is the voltage rating of the 1N4746 G diode?
- The 1N4746 G has a nominal voltage rating of 18 volts.
How does the 1N4746 G diode regulate voltage?
- The 1N4746 G operates in the reverse-biased breakdown region, allowing it to maintain a constant voltage drop across its terminals.
Can the 1N4746 G be used for overvoltage protection?
- Yes, the 1N4746 G can be utilized for overvoltage protection by diverting excess voltage away from sensitive components.
What are the typical applications of the 1N4746 G diode?
- Typical applications include voltage regulation in power supplies, voltage reference circuits, and as a shunt regulator.
What is the maximum power dissipation of the 1N4746 G diode?
- The 1N4746 G has a maximum power dissipation of 1 watt.
Is the 1N4746 G suitable for high-frequency applications?
- While the 1N4746 G can function at moderate frequencies, it may not be ideal for high-frequency applications due to its inherent capacitance and response time.
What is the temperature coefficient of the 1N4746 G diode?
- The temperature coefficient of the 1N4746 G is typically around -2 mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Can multiple 1N4746 G diodes be connected in series or parallel?
- Yes, multiple 1N4746 G diodes can be connected in series to increase the total breakdown voltage, or in parallel to share current load.
Are there any precautions to consider when using the 1N4746 G diode?
- It's important to ensure that the maximum power dissipation and current ratings are not exceeded, and to observe proper polarity when connecting the diode in a circuit.