1N4742CP/TR12

Product Overview

Category:

The 1N4742CP/TR12 belongs to the category of Zener diodes.

Use:

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

Characteristics:

Zener voltage: 12V
Power dissipation: 1.0W
Package type: Axial leaded
Operating temperature range: -65°C to +200°C
Tolerance: ±5%

Package:

The 1N4742CP/TR12 is typically available in a DO-41 axial package.

Packaging/Quantity:

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

Specifications

Zener voltage: 12V
Power dissipation: 1.0W
Maximum forward voltage: 1.2V
Reverse current: 5μA
Temperature coefficient: 0.05%/°C

Detailed Pin Configuration

The 1N4742CP/TR12 has two leads, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

Voltage regulation: The Zener diode maintains a constant voltage across its terminals, providing stability in electronic circuits.
Overvoltage protection: It prevents excessive voltage from damaging sensitive components by diverting excess current.

Advantages and Disadvantages

Advantages

Precise voltage regulation
Compact size
Cost-effective solution for voltage stabilization

Disadvantages

Limited power dissipation capability
Susceptible to thermal runaway if not properly heatsinked

Working Principles

The 1N4742CP/TR12 operates based on the Zener effect, where it allows current to flow in reverse bias once the voltage reaches its breakdown voltage, maintaining a relatively constant voltage drop across its terminals.

Detailed Application Field Plans

Voltage Regulation

The 1N4742CP/TR12 is widely used in power supplies, voltage regulators, and precision reference circuits to maintain stable output voltages.

Overvoltage Protection

It is employed in electronic systems to protect sensitive components from damage due to transient voltage spikes or overvoltage conditions.

Detailed and Complete Alternative Models

1N4732A: 4.7V Zener diode
1N4756A: 56V Zener diode
BZX85C12: 12V Zener diode

In conclusion, the 1N4742CP/TR12 Zener diode offers precise voltage regulation and overvoltage protection in various electronic applications, making it a valuable component in circuit design.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 1N4742CP/TR12 v technických řešeních

What is the 1N4742CP/TR12?
- The 1N4742CP/TR12 is a 1W Zener diode with a voltage rating of 12V, commonly used in electronic circuits for voltage regulation and protection.
How does the 1N4742CP/TR12 work?
- The 1N4742CP/TR12 works by allowing current to flow in the forward direction like a normal diode, but it also permits it to flow in the reverse direction when the voltage reaches its breakdown voltage, effectively regulating the voltage across the circuit.
What are the typical applications of the 1N4742CP/TR12?
- The 1N4742CP/TR12 is commonly used in voltage regulator circuits, overvoltage protection, and as a reference voltage source in various technical solutions.
What is the maximum power dissipation of the 1N4742CP/TR12?
- The 1N4742CP/TR12 has a maximum power dissipation of 1 watt, making it suitable for low-power applications.
What is the voltage tolerance of the 1N4742CP/TR12?
- The voltage tolerance of the 1N4742CP/TR12 is typically +/- 5%.
Can the 1N4742CP/TR12 be used for reverse polarity protection?
- Yes, the 1N4742CP/TR12 can be used for reverse polarity protection by connecting it in series with the power supply to prevent damage from reverse voltage.
What are the key specifications to consider when using the 1N4742CP/TR12 in a circuit?
- When using the 1N4742CP/TR12, it's important to consider its voltage rating, power dissipation, and voltage tolerance to ensure proper functionality in the circuit.
Is the 1N4742CP/TR12 suitable for automotive applications?
- Yes, the 1N4742CP/TR12 can be used in automotive applications where a 12V voltage regulator or overvoltage protection is required.
Can multiple 1N4742CP/TR12 diodes be connected in series or parallel?
- Yes, multiple 1N4742CP/TR12 diodes can be connected in series to increase the breakdown voltage or in parallel to increase the current-handling capacity.
Are there any common failure modes associated with the 1N4742CP/TR12?
- Common failure modes for the 1N4742CP/TR12 include exceeding the maximum power dissipation, exceeding the maximum current rating, or exposure to voltage spikes beyond its tolerance range.