1N5221A (DO-35)
Product Overview
The 1N5221A (DO-35) is a zener diode belonging to the semiconductor category. It is commonly used for voltage regulation and protection in electronic circuits. The diode exhibits characteristics such as stable voltage output, low impedance, and high reliability. It is typically packaged in a DO-35 package and is available in various packaging quantities.
Specifications
- Voltage: 4.3V
- Power Dissipation: 500mW
- Zener Impedance: 10Ω
- Operating Temperature Range: -65°C to +200°C
Pin Configuration
The 1N5221A (DO-35) zener diode has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.
Functional Features
- Voltage Regulation: The diode maintains a constant voltage across its terminals, providing stability in electronic circuits.
- Overvoltage Protection: It protects sensitive components by diverting excess voltage away from the circuit.
Advantages
- Reliable voltage regulation
- Low impedance
- Compact size
Disadvantages
- Limited power dissipation capability
- Susceptible to damage from excessive current or voltage spikes
Working Principles
The 1N5221A (DO-35) operates based on the principle of the zener effect, where it allows current to flow in reverse when the voltage reaches the zener voltage. This characteristic enables it to regulate voltage in electronic circuits.
Application Field Plans
The 1N5221A (DO-35) is widely used in: - Voltage regulators - Power supplies - Overvoltage protection circuits
Alternative Models
- 1N5221B (DO-35)
- 1N5221C (DO-35)
- BZX55C4V3 (DO-35)
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What is the 1N5221A (DO-35) diode used for?
- The 1N5221A diode is commonly used for voltage regulation and protection in various electronic circuits.
What is the maximum forward current rating of the 1N5221A diode?
- The maximum forward current rating of the 1N5221A diode is typically around 500 mA.
What is the voltage rating of the 1N5221A diode?
- The 1N5221A diode has a voltage rating of 4.3 volts.
Can the 1N5221A diode be used for reverse polarity protection?
- Yes, the 1N5221A diode can be used for reverse polarity protection due to its low forward voltage drop.
What are some common applications of the 1N5221A diode?
- Common applications include voltage clamping, overvoltage protection, and voltage regulation in low power circuits.
Is the 1N5221A diode suitable for high-frequency applications?
- No, the 1N5221A diode is not suitable for high-frequency applications due to its relatively slow switching speed.
What is the temperature range for the 1N5221A diode?
- The 1N5221A diode typically operates within a temperature range of -65°C to +200°C.
Can the 1N5221A diode be used in automotive electronics?
- Yes, the 1N5221A diode can be used in automotive electronics for voltage regulation and protection purposes.
Does the 1N5221A diode require a heatsink for operation?
- In most low-power applications, the 1N5221A diode does not require a heatsink due to its low power dissipation.
Are there any potential failure modes or reliability concerns with the 1N5221A diode?
- Overheating and excessive current can lead to failure, so proper heat dissipation and current limiting should be considered in the design.