1N4742P/TR12

Product Overview

Use

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

Characteristics

Voltage regulation capability
Reverse breakdown voltage of 12V
Low impedance
Small package size

Package

The 1N4742P/TR12 is typically available in a DO-41 axial leaded package.

Essence

The essence of the 1N4742P/TR12 lies in its ability to maintain a constant voltage across its terminals when operated in the reverse breakdown region.

Packaging/Quantity

It is usually supplied in reels or tubes with varying quantities depending on the manufacturer.

Specifications

Reverse Breakdown Voltage: 12V
Power Dissipation: 1.0W
Operating Temperature Range: -65°C to +200°C
Forward Voltage: 1.2V at 200mA

Detailed Pin Configuration

The 1N4742P/TR12 has two pins, anode, and cathode, with the anode being the positive terminal and the cathode being the negative terminal.

Functional Features

Voltage regulation
Overvoltage protection
Stability in temperature variations

Advantages

Precise voltage regulation
Compact size
Wide operating temperature range

Disadvantages

Limited power dissipation capability
Sensitivity to current surges

Working Principles

The 1N4742P/TR12 operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased.

Detailed Application Field Plans

The 1N4742P/TR12 finds applications in various electronic circuits such as: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N4742P/TR12 include: - 1N4732A - BZX55C12 - 1N5242B

In conclusion, the 1N4742P/TR12 Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its compact size and stable performance make it suitable for a wide range of applications.

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技術ソリューションにおける 1N4742P/TR12 の適用に関連する 10 件の一般的な質問と回答をリストします。

What is the 1N4742P/TR12 diode used for?
- The 1N4742P/TR12 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the voltage rating of the 1N4742P/TR12 diode?
- The 1N4742P/TR12 has a nominal voltage of 12 volts, making it suitable for applications requiring a stable 12V reference voltage.
How does the 1N4742P/TR12 diode regulate voltage?
- The 1N4742P/TR12 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals to regulate the output voltage.
Can the 1N4742P/TR12 be used for overvoltage protection?
- Yes, the 1N4742P/TR12 can be employed to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.
What are the typical applications of the 1N4742P/TR12 diode?
- Typical applications include voltage regulators, voltage references, overvoltage protection circuits, and power management systems.
What is the maximum power dissipation of the 1N4742P/TR12 diode?
- The 1N4742P/TR12 has a maximum power dissipation of 1.0 watt, allowing it to handle moderate power levels in circuit designs.
Is the 1N4742P/TR12 suitable for automotive electronics?
- Yes, the 1N4742P/TR12 can be used in automotive electronics for voltage regulation and transient protection in various systems.
What is the temperature coefficient of the 1N4742P/TR12 diode?
- The temperature coefficient is typically around -2.0 mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Can multiple 1N4742P/TR12 diodes be connected in series or parallel?
- Yes, multiple 1N4742P/TR12 diodes can be connected in series to create higher voltage references or in parallel to increase current-handling capability.
Are there any specific layout considerations when using the 1N4742P/TR12 in a PCB design?
- It's important to place decoupling capacitors near the 1N4742P/TR12 to minimize noise and ensure stable operation. Additionally, proper heat sinking may be required for high-power applications.