SMAJ20CA R3G Circuit Protection

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Transient voltage suppression diodes (TVS) are utilized to protect electronics from transients. TVS devices clamp characteristics based on the breakdown voltage of the junction, which enables highly reliable protection on a large variety of components. SMAJ20CA R3G, a TVS device, is one such diode that provides efficient transient protection for data lines and VCC buses across a wide array of systems.

The SMAJ20CA R3G is a single line bidirectional transient voltage suppression diode. It is composed of a silicon avalanche diode and is designed using conformal coating, packaged in SMD technology. The diode features a unidirectional working voltage of 20V and a bidirectional breakdown voltage of 26V. They can absorb ESD (electrostatic discharge) pulses up to 20KV. The device is optimized to work at low capacitance, such that it dissipates the transient energy as heat.

The SMAJ20CA R3G provides a common operating voltage of 26V with a clamping voltage of 36.5V for a typical IEC 61000-4-2 test waveform. This device is able to tolerate high working voltages and supports fast response time under high capacitance and temperature conditions. Furthermore, the SMAJ20CA R3G provides maximum surge rating of 28A.

The working principle of the SMAJ20CA R3G is simple and straightforward. When a transient occurs, the diode will conduct the energy away from the protected component, thus protecting it from damage due to the transient. The diode is able to absorb energies up to 20KV and dissipate them as heat. The device’s low capacitance ensures that there is minimum risk of damage to the protected components.

The SMAJ20CA R3G is suited for a wide range of applications, including VGA, USB, and Ethernet connections. It is ideal for data line protection in networking devices, as well as for protecting sensitive components on circuit boards from electrostatic discharge (ESD) damage. This diode is also suitable for protecting equipment that is subject to high power surge, such as medical and industrial equipment.

In conclusion, the SMAJ20CA R3G is a highly efficient TVS diode, designed to provide reliable protection from transient voltage and ESD events. It is suitable for a wide range of applications, from networking equipment to medical and industrial systems. The diode is able to absorb energies up to 20KV and dissipate them as heat, while its low capacitance ensures maximum protection for the protected components.

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