1N5251B

Product Overview

Category:

The 1N5251B is a Zener diode, which falls under the category of semiconductor devices.

Use:

It is commonly used for voltage regulation and protection in electronic circuits.

Characteristics:

• Zener voltage: 4.7V
• Power dissipation: 500mW
• Package type: DO-35
• Operating temperature range: -65°C to +200°C
• Forward voltage: 1.2V
• Reverse current: 5μA

Package:

The 1N5251B is typically available in a DO-35 package.

Essence:

This Zener diode provides a stable reference voltage for various electronic applications.

Packaging/Quantity:

It is usually supplied in reels or tubes with quantities varying based on manufacturer specifications.

Specifications

• Zener voltage: 4.7V
• Power dissipation: 500mW
• Maximum forward voltage: 1.2V
• Maximum reverse current: 5μA
• Package type: DO-35
• Operating temperature range: -65°C to +200°C

Detailed Pin Configuration

The 1N5251B Zener diode has two pins, anode, and cathode. The anode is connected to the positive terminal, while the cathode is connected to the negative terminal.

Functional Features

• Voltage regulation: It maintains a constant output voltage across a wide range of load currents and input voltages.
• Overvoltage protection: It prevents damage to sensitive components by diverting excess voltage away from the circuit.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Compact size
• Wide operating temperature range

Disadvantages

• Limited power dissipation capability
• Susceptible to thermal runaway if not properly heat-sinked

Working Principles

The 1N5251B operates based on the Zener effect, where it begins to conduct in the reverse-biased direction once the voltage across it reaches its specified Zener voltage. This allows it to regulate the voltage across a circuit.

Detailed Application Field Plans

The 1N5251B is widely used in various applications including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage references

Detailed and Complete Alternative Models

Some alternative models to the 1N5251B include: - 1N5221B (4.3V Zener voltage) - 1N5231B (5.1V Zener voltage) - 1N5241B (6.2V Zener voltage)

In conclusion, the 1N5251B Zener diode is a crucial component in electronic circuits, providing stable voltage regulation and overvoltage protection. Its compact size and precise characteristics make it suitable for a wide range of applications.

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