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1N4739A - Semiconductor Diode
Product Overview
Category:
The 1N4739A is a semiconductor diode belonging to the Zener diode category.
Use:
It is commonly used for voltage regulation and stabilization in electronic circuits.
Characteristics:
- Forward Voltage: 1.2V
- Reverse Voltage: 9.1V
- Power Dissipation: 1.3W
- Package Type: DO-41
- Operating Temperature Range: -65°C to +200°C
- Zener Voltage Tolerance: ±5%
Packaging/Quantity:
The 1N4739A is typically available in bulk packaging with quantities ranging from 100 to 1000 units per package.
Specifications
- Zener Voltage: 9.1V
- Maximum Reverse Leakage Current: 5μA
- Maximum Zener Impedance: 20Ω
- Maximum Surge Current: 50mA
Detailed Pin Configuration
The 1N4739A has two pins, anode (A) and cathode (K), which are identified by the physical orientation of the diode.
Functional Features
The 1N4739A exhibits stable and precise voltage regulation characteristics, making it suitable for various electronic applications requiring constant voltage levels.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Sensitive to reverse voltage spikes
Working Principles
The 1N4739A operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when operated in the reverse breakdown region.
Detailed Application Field Plans
The 1N4739A finds extensive use in: - Voltage regulators - Power supplies - Signal clamping circuits - Overvoltage protection circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4739A include: - 1N4738A (8.2V Zener voltage) - 1N4740A (10V Zener voltage) - BZX55C9V1 (9.1V Zener voltage)
In conclusion, the 1N4739A semiconductor diode serves as a crucial component in electronic circuits, providing stable voltage regulation and finding widespread application in various industries.
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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan 1N4739A dalam solusi teknis
What is 1N4739A?
- 1N4739A is a popular Zener diode with a voltage rating of 9.1V, commonly used in electronic circuits for voltage regulation and protection.
How does 1N4739A work?
- 1N4739A works by allowing current to flow in the forward direction like a regular diode, but it also permits current to flow in the reverse direction when the voltage reaches its breakdown voltage, providing a stable output voltage.
What are the typical applications of 1N4739A?
- 1N4739A is commonly used in voltage regulator circuits, voltage reference circuits, overvoltage protection, and as a voltage stabilizer in various electronic devices.
What is the maximum power dissipation of 1N4739A?
- The maximum power dissipation of 1N4739A is typically around 1.3 watts.
What is the operating temperature range of 1N4739A?
- The operating temperature range of 1N4739A is usually between -65°C to +200°C.
Can 1N4739A be used in reverse bias?
- Yes, 1N4739A can be used in reverse bias to provide a stable voltage output.
What is the tolerance of the voltage output for 1N4739A?
- The tolerance of the voltage output for 1N4739A is typically around ±5%.
Is 1N4739A suitable for low-power applications?
- Yes, 1N4739A is suitable for low-power applications due to its relatively low power dissipation.
Can multiple 1N4739A diodes be connected in series or parallel?
- Yes, multiple 1N4739A diodes can be connected in series to increase the breakdown voltage or in parallel to increase the current-handling capacity.
Are there any precautions to consider when using 1N4739A?
- It's important to ensure that the maximum power dissipation and operating temperature limits are not exceeded, and proper heat sinking may be required in some applications to prevent overheating.