SMCG18CA-HR

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SMCG18CA-HR is a type of TVS - Diodes that provides overvoltage protection to systems against over-voltage, over-current and over-temperature. It has an operating voltage range of 18V to 50V and is able to protect up to 17A. This diode is designed for discrete and compact applications due to its low profile (less than 3mm) size.

The main application for this diode is in AC/DC power systems, where it can provide protection against overvoltage, overcurrent, and over-temperature. It is typically used in power supplies, motor controllers and other electrical components where high-frequency transient voltages and currents are present. Additionally, these diodes can be used for over-current protection in automotive and other mobile applications.

The SMCG18CA-HR diode is a symmetrical silicon avalanche diode that has been designed to protect against destructive transients up to 17A. The diode has an operating voltage range up to 50V for a maximum voltage of 30mA for continuous operation and up to 400mA for peak transients. The device has been designed with a low thermal resistance, which allows for better thermal performance in wide temperature range environments.

The working principle of the SMCG18CA-HR diode is based on the zener breakdown phenomenon. The diode has an internal trigger voltage, which is lower than the zener breakdown voltage. This triggers the avalanche effect, resulting in an avalanche breakdown voltage, which is greater than the zener voltage but still less than the maximum operating voltage. The device can dissipate the avalanched current across the symmetrically placed metal-oxide-semiconductor structures. This process helps reduce the destructive voltage surges and protects the system from harm.

Moreover, the SMCG18CA-HR diode features built-in ESD protection. It has a single-pin design, which makes it suitable for space-constrained applications. The built-in electrostatic protection ensures that the device is able to dissipate electric surges with an efficient thermal transfer. Additionally, the diode is designed to provide a fast response, which helps protect the system from overvoltage threats in a timely manner.

The SMCG18CA-HR diode is a suitable choice for providing overvoltage protection in AC/DC power systems, motor controllers, and other electrical components. It is a low profile, symmetrical silicon avalanche diode featuring ESD protection, fast response, and high thermal resistance. With its efficient protection capabilities, the SMCG18CA-HR diode is a perfect choice for ensuring the safety of the system components from damaging voltage surges.

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