P4SMA18

Product Overview

P4SMA18 belongs to the category of TVS (Transient Voltage Suppressor) diodes. These diodes are used to protect sensitive electronics from voltage spikes and surges. The P4SMA18 is characterized by its high surge capability, low clamping voltage, and fast response time. It is typically available in a DO-214AC package and is designed to provide essential protection for electronic circuits.

Basic Information

Category: TVS Diode
Use: Protection against voltage spikes and surges
Characteristics: High surge capability, low clamping voltage, fast response time
Package: DO-214AC
Essence: Protecting sensitive electronics
Packaging/Quantity: Typically available in reels of 3000 units

Specifications

Peak Power Dissipation: 400W
Breakdown Voltage: 15.3V to 17V
Operating Voltage: 12.8V
Maximum Clamping Voltage: 21.2V
Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The P4SMA18 TVS diode has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

Fast response to transient over-voltage conditions
Low clamping voltage to protect downstream components
High surge capability for reliable protection

Advantages and Disadvantages

Advantages

Effective protection against voltage spikes
Fast response time
Low clamping voltage

Disadvantages

Limited peak power dissipation compared to higher-rated TVS diodes
Operating temperature range may not be suitable for extreme environments

Working Principles

When a voltage spike occurs, the P4SMA18 TVS diode rapidly conducts, diverting the excess current away from the protected circuit. This action effectively limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The P4SMA18 is commonly used in various electronic devices and systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative TVS diodes that can be considered as alternatives to the P4SMA18 include: - P6SMB15A - 1.5SMC16CA - SMBJ15A

In conclusion, the P4SMA18 TVS diode offers effective protection against voltage spikes and surges, making it an essential component in safeguarding sensitive electronic circuits across a wide range of applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací P4SMA18 v technických řešeních

What is P4SMA18?
- P4SMA18 is a type of TVS (transient voltage suppressor) diode that is commonly used for overvoltage protection in electronic circuits.
What is the maximum peak pulse power dissipation of P4SMA18?
- The maximum peak pulse power dissipation of P4SMA18 is typically 400 watts.
What is the breakdown voltage of P4SMA18?
- The breakdown voltage of P4SMA18 is 16.7 volts.
What are the typical applications of P4SMA18?
- P4SMA18 is commonly used in surge protection for telecommunications equipment, automotive electronics, and industrial control systems.
What is the operating temperature range of P4SMA18?
- The operating temperature range of P4SMA18 is usually -55°C to +150°C.
How does P4SMA18 provide overvoltage protection?
- P4SMA18 clamps the voltage during transient events, diverting excess current away from sensitive components and preventing damage.
Is P4SMA18 suitable for high-speed data lines?
- Yes, P4SMA18 is suitable for protecting high-speed data lines such as USB, Ethernet, and HDMI interfaces.
What is the response time of P4SMA18 during a transient event?
- The response time of P4SMA18 is typically very fast, providing rapid protection against voltage spikes.
Can P4SMA18 be used in outdoor applications?
- Yes, P4SMA18 is often used in outdoor applications due to its ability to withstand harsh environmental conditions.
Are there any specific layout considerations when using P4SMA18 in a circuit?
- It is important to minimize the length and impedance of the traces connecting P4SMA18 to the protected circuit, and to ensure proper grounding for effective protection.