SMAJ45

Product Overview

SMAJ45 belongs to the category of transient voltage suppressor diodes. These diodes are used to protect sensitive electronic components from voltage spikes and transients. They are characterized by their fast response time, high surge capability, and compact package. The SMAJ45 is typically packaged in a DO-214AC (SMA) package and is available in various quantities per package.

Basic Information

Category: Transient Voltage Suppressor Diode
Use: Protecting electronic components from voltage spikes and transients
Characteristics: Fast response time, high surge capability
Package: DO-214AC (SMA)
Packaging/Quantity: Available in reels or bulk packaging, quantity varies

Specifications

Voltage - Reverse Standoff (Typ): 45V
Voltage - Breakdown (Min): 50V
Clamping Voltage @ Ipp: 77V
Current - Peak Pulse (10/1000µs): 18.2A
Power - Peak Pulse: 400W
Type: Zener

Detailed Pin Configuration

The SMAJ45 diode has two pins, anode, and cathode. The anode is connected to the positive side of the circuit, while the cathode is connected to the negative side.

Functional Features

Transient Voltage Suppression: Effectively clamps transient voltages to a safe level.
Fast Response Time: Rapid reaction to voltage spikes, protecting downstream components.
High Surge Capability: Can withstand large surge currents without damage.

Advantages and Disadvantages

Advantages

Effective protection against voltage spikes
Fast response time
Compact size

Disadvantages

Limited to specific voltage ranges
May require additional circuitry for comprehensive protection

Working Principles

When a voltage spike occurs, the SMAJ45 diode conducts current to divert the excess energy away from sensitive components. This action effectively limits the voltage across the protected circuit.

Detailed Application Field Plans

The SMAJ45 diode is commonly used in various applications including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Alternative Model 1: SMBJ45CA
Alternative Model 2: P6SMB45CA
Alternative Model 3: 1.5SMC45CA

In conclusion, the SMAJ45 transient voltage suppressor diode offers effective protection against voltage spikes and transients in a compact package. Its fast response time and high surge capability make it suitable for a wide range of applications in different industries.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMAJ45 v technických řešeních

What is SMAJ45?
- SMAJ45 is a type of transient voltage suppressor diode that is designed to protect electronic circuits from overvoltage transients.
What is the maximum peak pulse power dissipation of SMAJ45?
- The maximum peak pulse power dissipation of SMAJ45 is 400 watts.
What is the breakdown voltage of SMAJ45?
- The breakdown voltage of SMAJ45 is 45 volts.
What are the typical applications of SMAJ45?
- SMAJ45 is commonly used in various electronic devices and systems such as power supplies, telecommunications equipment, automotive electronics, and industrial controls to protect them from voltage spikes and surges.
What is the response time of SMAJ45?
- The response time of SMAJ45 is very fast, typically in the nanosecond range, which allows it to quickly clamp any overvoltage transients.
How does SMAJ45 provide protection to electronic circuits?
- SMAJ45 diverts excessive current away from sensitive components by providing a low-impedance path to ground during overvoltage events, thereby protecting the circuit.
Can SMAJ45 be used for both unidirectional and bidirectional protection?
- Yes, SMAJ45 is available in both unidirectional and bidirectional configurations, making it suitable for a wide range of applications.
What are the temperature considerations for SMAJ45?
- SMAJ45 has a wide operating temperature range, typically from -55°C to 150°C, making it suitable for use in various environmental conditions.
Is SMAJ45 RoHS compliant?
- Yes, SMAJ45 is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring its environmental friendliness.
Are there any specific layout or mounting considerations for SMAJ45?
- It is recommended to place SMAJ45 as close as possible to the protected circuit and to ensure proper heat sinking if high power dissipation is expected. Additionally, following manufacturer's guidelines for PCB layout and mounting is advisable for optimal performance.