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SMAJ18A Product Overview
Introduction
The SMAJ18A is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and transients.
Basic Information Overview
- Category: Transient Voltage Suppressor (TVS) Diode
- Use: Protection against voltage spikes and transients
- Characteristics: Fast response time, low clamping voltage, high surge capability
- Package: SMA (DO-214AC)
- Essence: Safeguarding electronic components from voltage surges
- Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer
Specifications
- Part Number: SMAJ18A
- Peak Pulse Power: 400W
- Breakdown Voltage: 18V
- Operating Temperature Range: -55°C to +150°C
- Storage Temperature Range: -55°C to +150°C
Detailed Pin Configuration
The SMAJ18A TVS diode has two pins with standard SMA package pin configuration: 1. Anode (A) 2. Cathode (K)
Functional Features
- Transient Voltage Suppression: Rapidly clamps transient voltages to a safe level
- Low Clamping Voltage: Provides effective protection for sensitive electronics
- Fast Response Time: Reacts quickly to voltage spikes, minimizing potential damage
Advantages and Disadvantages
Advantages
- Effective protection against voltage transients
- Fast response time
- Low clamping voltage
Disadvantages
- Limited peak pulse power handling capability
- Requires careful consideration of placement in circuit design
Working Principles
The SMAJ18A operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage away from sensitive components, limiting the voltage across them.
Detailed Application Field Plans
The SMAJ18A is widely used in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges - Consumer Electronics: Safeguarding sensitive circuits in electronic devices - Automotive: Shielding vehicle electronics from voltage spikes
Detailed and Complete Alternative Models
Several alternative models to SMAJ18A include: - P6SMB18A: Similar specifications with different package (DO-214AA) - 1.5KE18A: Higher peak pulse power rating with axial package - SMBJ18A: Lower profile package with comparable performance
In conclusion, the SMAJ18A TVS diode offers effective transient voltage suppression for a wide range of applications, providing crucial protection for sensitive electronic components.
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What is SMAJ18A?
- SMAJ18A is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.
What is the maximum peak pulse power of SMAJ18A?
- The maximum peak pulse power of SMAJ18A is 400 watts.
What is the breakdown voltage of SMAJ18A?
- The breakdown voltage of SMAJ18A is 18 volts.
What are the typical applications of SMAJ18A?
- SMAJ18A is commonly used in applications such as protection of integrated circuits, automotive electronics, telecommunications equipment, and industrial control systems.
What is the clamping voltage of SMAJ18A?
- The clamping voltage of SMAJ18A is 29.2 volts at 10A.
What is the operating temperature range of SMAJ18A?
- The operating temperature range of SMAJ18A is -55°C to +150°C.
What is the response time of SMAJ18A?
- The response time of SMAJ18A is typically less than 1 picosecond.
How does SMAJ18A provide protection against voltage spikes?
- SMAJ18A diverts excessive current away from sensitive components by clamping the voltage during transient events.
Can SMAJ18A be used for ESD protection?
- Yes, SMAJ18A can be used for electrostatic discharge (ESD) protection in various electronic devices.
Is SMAJ18A RoHS compliant?
- Yes, SMAJ18A is compliant with the Restriction of Hazardous Substances (RoHS) directive, making it suitable for use in environmentally friendly products.