1N5349B

Product Overview

Use

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

Characteristics

Zener voltage: 12V
Power dissipation: 5W
Package type: Axial leaded
Operating temperature range: -65°C to +200°C
Forward voltage: 1.5V
Reverse current: 5µA

Package

The 1N5349B is typically available in an axial leaded package.

Packaging/Quantity

It is usually packaged in reels, tubes, or bulk quantities, depending on the manufacturer.

Specifications

Zener voltage: 12V
Power dissipation: 5W
Maximum forward voltage: 1.5V
Maximum reverse current: 5µA
Operating temperature range: -65°C to +200°C

Detailed Pin Configuration

The 1N5349B has two leads, with the cathode being shorter than the anode. The pin configuration is as follows: - Anode (A) - Cathode (K)

Functional Features

The 1N5349B operates as a voltage regulator by maintaining a constant output voltage across its terminals, even when there are variations in input voltage or load conditions.

Advantages and Disadvantages

Advantages

Precise voltage regulation
High power dissipation capability
Wide operating temperature range

Disadvantages

Limited voltage options compared to programmable regulators
Sensitive to temperature variations

Working Principles

When the voltage across the 1N5349B exceeds its Zener voltage, it begins to conduct in the reverse direction, effectively stabilizing the voltage across its terminals.

Detailed Application Field Plans

The 1N5349B is widely used in various electronic devices and systems, including: - Voltage regulators in power supplies - Overvoltage protection circuits - Voltage reference sources

Detailed and Complete Alternative Models

Some alternative models to the 1N5349B include: - 1N5333B (5.1V Zener voltage) - 1N5338B (8.2V Zener voltage) - 1N5354B (15V Zener voltage)

In conclusion, the 1N5349B Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and stabilization. Its characteristics, specifications, and application field plans make it a versatile choice for various electronic applications.

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What is the 1N5349B diode used for?
- The 1N5349B is a 5-watt Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the maximum voltage rating of the 1N5349B diode?
- The maximum voltage rating of the 1N5349B diode is 12 volts.
What is the power dissipation of the 1N5349B diode?
- The 1N5349B diode has a power dissipation of 5 watts.
How does the 1N5349B diode regulate voltage?
- The 1N5349B diode regulates voltage by maintaining a constant voltage drop across its terminals, providing a stable output voltage.
Can the 1N5349B diode be used for overvoltage protection?
- Yes, the 1N5349B diode can be used for overvoltage protection by shunting excess voltage to ground when the voltage exceeds its rated value.
What are the typical applications of the 1N5349B diode?
- Typical applications of the 1N5349B diode include voltage regulators, voltage references, and overvoltage protection circuits.
What is the forward voltage drop of the 1N5349B diode?
- The forward voltage drop of the 1N5349B diode is typically around 1.5 volts.
Is the 1N5349B diode polarized?
- Yes, the 1N5349B diode is polarized and must be connected with the correct orientation in a circuit.
What is the temperature coefficient of the 1N5349B diode?
- The temperature coefficient of the 1N5349B diode is approximately -2 mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Can the 1N5349B diode handle high current levels?
- The 1N5349B diode is capable of handling currents up to its specified maximum rating, typically around 200 mA, making it suitable for many low to moderate power applications.