1N4748PE3/TR12 - Semiconductor Diode
Basic Information Overview
- Category: Semiconductor Diode
- Use: Voltage regulation and rectification
- Characteristics: Zener diode, low leakage current, high reliability
- Package: DO-41 (DO-204AL), axial leaded
- Essence: Regulates voltage by maintaining a constant output voltage across its terminals
- Packaging/Quantity: Typically available in reels of 2000 units
Specifications
- Voltage: 22V
- Power Dissipation: 1.0W
- Operating Temperature Range: -65°C to +200°C
- Zener Impedance: 5Ω
- Maximum Reverse Leakage Current: 5μA
Detailed Pin Configuration
The 1N4748PE3/TR12 has a standard axial leaded package with two leads. The cathode is marked with a black band.
Functional Features
- Provides a stable reference voltage
- Protects circuits from overvoltage conditions
- Low reverse leakage current ensures minimal power loss
Advantages and Disadvantages
Advantages: - Precise voltage regulation - High reliability - Low cost
Disadvantages: - Limited power dissipation capability - Sensitivity to temperature variations
Working Principles
The 1N4748PE3/TR12 operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased.
Detailed Application Field Plans
- Voltage regulation in power supplies
- Overvoltage protection in electronic circuits
- Signal clamping and limiting
Detailed and Complete Alternative Models
- 1N4733A: 5.1V Zener diode
- 1N4739A: 9.1V Zener diode
- BZX85C22: 22V Zener diode
This comprehensive entry provides detailed information about the 1N4748PE3/TR12 semiconductor diode, covering its basic overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.
技術ソリューションにおける 1N4748PE3/TR12 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 1N4748PE3/TR12 diode used for?
- The 1N4748PE3/TR12 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the voltage rating of the 1N4748PE3/TR12 diode?
- The 1N4748PE3/TR12 has a nominal voltage of 22V, making it suitable for applications requiring stable voltage references.
How does the 1N4748PE3/TR12 diode regulate voltage?
- The 1N4748PE3/TR12 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals to regulate the output voltage.
Can the 1N4748PE3/TR12 be used for overvoltage protection?
- Yes, the 1N4748PE3/TR12 can be employed to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.
What are the typical applications of the 1N4748PE3/TR12 diode?
- Typical applications include voltage regulation in power supplies, voltage reference circuits, and overvoltage protection in various electronic systems.
What is the maximum power dissipation of the 1N4748PE3/TR12 diode?
- The 1N4748PE3/TR12 has a maximum power dissipation of 1.0W, allowing it to handle moderate power levels in circuit designs.
Is the 1N4748PE3/TR12 suitable for high-frequency applications?
- While the 1N4748PE3/TR12 can function at moderate frequencies, it may not be ideal for high-speed switching applications due to its inherent capacitance and response time.
Does the 1N4748PE3/TR12 require a heatsink in high-power applications?
- In high-power applications approaching the diode's maximum power dissipation, a heatsink may be necessary to ensure proper thermal management and reliability.
What are the temperature considerations for the 1N4748PE3/TR12?
- The 1N4748PE3/TR12 operates within a specified temperature range, typically between -65°C to +200°C, ensuring reliable performance across varying environmental conditions.
Can multiple 1N4748PE3/TR12 diodes be connected in series or parallel?
- Multiple 1N4748PE3/TR12 diodes can be connected in series to increase the total breakdown voltage, but connecting them in parallel is generally not recommended due to potential current imbalance issues.