SMAJ5.0ATR Circuit Protection

Voltage - Clamping (Max) @ Ipp:	9.2V
Supplier Device Package:	SMA (DO-214AC)
Package / Case:	DO-214AC, SMA
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	43.5A
Series:	SMAJ
Voltage - Breakdown (Min):	6.4V
Voltage - Reverse Standoff (Typ):	5V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

SMAJ5.0ATR is a transient voltage suppressor device (TVS-Diodes) which is specially designed for over-voltage protection circuit. It offers a fast response and low clamping voltage protection for transient voltage in the IEC 61000-4-2, IEC 61000-4-4, and IEC 61000-4-5 clamping services. SMAJ5.0ATR is suitable for lightning protection in various applications, such as telecommunications equipment, computer systems, and other consumer electronics.

Application Field of SMAJ5.0ATR

SMAJ5.0ATR is primarily used for protecting against over-voltage transients in telecom systems, computer systems, and other consumer electronic equipment. This transient voltage suppressor device protects the exposed positive and negative terminals from electrostatic discharges of up to 8kV for protection from lightning strikes. The clamping of voltage is very quick, providing only a few nanoseconds of error and the device requires no external components. As a result, the SMAJ5.0ATR provides very reliable protection against over-voltage transients.One of the most common application fields for SMAJ5.0ATR is in the telecom industry. This transient voltage suppressor device is used to protect telecom systems from power surges produced by lightning strikes, power outages, and other unexpected fluctuations in the power grid. This device also helps to protect other types of telecom components, such as modems, routers, and other equipment, from surges.In the medical industry, SMAJ5.0ATR is also used to protect both the components and the patient from unexpected power spikes. This TVS-Diodes is used to protect pacemakers, MRI machines, medical lab equipment, and other important medical equipment from electrostatic discharge caused by power outages or lightning strikes.In the transportation industry, SMAJ5.0ATR is used to protect onboard systems from power surges. This includes systems that monitor radar, navigation systems, and airbag sensors. As these systems are critical for the safety of the passengers, SMAJ5.0ATR is used to protect them from potential power spikes.

Working Principle of SMAJ5.0ATR

The working principle of SMAJ5.0ATR is based on the principles of Electrostatic Discharge (ESD) protection. When an over-voltage spike occurs, the SMAJ5.0ATR acts as a buffer to prevent the spike from damaging sensitive components. The device works by storing the energy of the over-voltage spike in its capacitors, and then slowly releasing the energy back into the system, allowing the components to function as normal.The SMAJ5.0ATR is equipped with three distinct protection stages: direct protection, indirect protection, and capacitance protection. The direct protection is designed to identify and react to an over-voltage surge by redirecting the current away from the critical components. This stage limits the amount of energy that can be transferred to the components and helps to reduce the impact of a surge.The indirect protection is designed to identify and react to an over-voltage surge by diverting the current away from the critical components. This helps to prevent the surge from directly damaging the components.Finally, the capacitance protection helps to reduce the energy of the surge by storing the energy in the capacitors and slowly releasing it back into the system. This helps to reduce the duration of the spike and can help to prevent further damage to sensitive components.

Conclusion

SMAJ5.0ATR is an essential tool for protecting sensitive components from over-voltage transients. It is used in the telecom, medical, and transportation fields to provide reliable protection from power surges. SMAJ5.0ATR works by using three distinct protection stages to identify and react to a surge. In addition, it also helps to reduce the energy of the surge by storing it in capacitors and slowly releasing it back into the system. By using SMAJ5.0ATR, engineers can ensure that their sensitive components remain protected even in the most extreme conditions.

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