1N4749P/TR8
Product Overview
Category
The 1N4749P/TR8 belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and protection in electronic circuits.
Characteristics
- Zener voltage: 24V
- Power dissipation: 1.3W
- Package type: DO-41
- Operating temperature range: -65°C to +200°C
- Packaging/quantity: Tape and reel, 5000 units per reel
Specifications
- Zener voltage: 24V
- Power dissipation: 1.3W
- Maximum forward voltage: 1.2V
- Reverse current: 5μA
- Temperature coefficient: 5mV/°C
Detailed Pin Configuration
The 1N4749P/TR8 has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.
Functional Features
- Precise voltage regulation
- Overvoltage protection
- Stable operation over a wide temperature range
Advantages
- High reliability
- Low reverse leakage current
- Compact package size
Disadvantages
- Limited power dissipation capability
- Sensitive to temperature variations
Working Principles
The 1N4749P/TR8 operates based on the Zener effect, where it maintains a constant voltage drop across its terminals when reverse-biased.
Detailed Application Field Plans
This Zener diode is widely used in voltage regulator circuits, surge suppressors, and overvoltage protection applications in various electronic devices and systems.
Detailed and Complete Alternative Models
- 1N4733A: 5.1V Zener diode
- 1N4736A: 6.2V Zener diode
- 1N4742A: 12V Zener diode
- 1N4750A: 27V Zener diode
In conclusion, the 1N4749P/TR8 Zener diode offers precise voltage regulation and overvoltage protection in a compact package, making it suitable for a wide range of electronic applications.
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技術ソリューションにおける 1N4749P/TR8 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 1N4749P/TR8 diode used for?
- The 1N4749P/TR8 is a Zener diode commonly used for voltage regulation and voltage reference applications.
What is the voltage rating of the 1N4749P/TR8 diode?
- The 1N4749P/TR8 has a nominal voltage of 24V, making it suitable for regulating or referencing voltages close to this value.
What is the power rating of the 1N4749P/TR8 diode?
- The 1N4749P/TR8 has a power dissipation rating of 1W, allowing it to handle moderate power levels in circuit applications.
How does the 1N4749P/TR8 diode regulate voltage?
- The 1N4749P/TR8 operates in the reverse-biased breakdown region, maintaining a relatively constant voltage drop across its terminals when operated within its specified current and power limits.
Can the 1N4749P/TR8 be used for overvoltage protection?
- Yes, the 1N4749P/TR8 can be employed as a simple overvoltage protection device by connecting it in parallel with the load to limit the voltage across the load.
What are typical applications of the 1N4749P/TR8 diode?
- Typical applications include voltage regulation in power supplies, voltage reference circuits, overvoltage protection, and signal conditioning.
What are the temperature considerations for the 1N4749P/TR8 diode?
- The 1N4749P/TR8 has a specified operating temperature range, and its performance may vary with temperature, so it's important to consider thermal management in high-power applications.
Is the 1N4749P/TR8 suitable for precision voltage references?
- While the 1N4749P/TR8 provides a stable voltage reference, it may not offer the precision required for some applications without additional circuitry for compensation.
Can multiple 1N4749P/TR8 diodes be connected in series or parallel?
- Multiple 1N4749P/TR8 diodes can be connected in series to create higher voltage references, but caution should be taken to ensure balanced current sharing. Connecting them in parallel is not recommended due to potential mismatch in characteristics.
Are there any alternatives to the 1N4749P/TR8 diode for similar applications?
- Yes, other Zener diodes with comparable voltage ratings and power dissipation capabilities can be considered as alternatives, such as the 1N4733A, 1N4740A, or BZX55C24.