CDSOD323-T18LC

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TVS diode is used to protect electronics from power surge caused by static discharge, transient voltage spikes, and electric or electromagnetic field interference. The CDSOD323-T18LC is a unidirectional Transient Voltage Suppressor diode designed to protect semiconductor devices from high voltage transients, usually caused by lightning. It is a package based on the standard SC-76 (low height) outline, designed to replace existing SC-82 devices.

The CDSOD323-T18LC is a bidirectional voltage-sensitive transient voltage suppression (TVS) diode that provides a robust, cost-effective protection for integrated circuits from damaging electrostatic discharge (ESD) transient voltages. It has an operating breakdown voltage of 18 volts, a peak pulse power rating of 1000 watts, and a surge current rating of 18 amps. Additionally, the CDSOD323-T18LC has an excellent transient immunity performance and a low input capacitance.

The application field of CDSOD323-T18LC includes industrial, automotive, aerospace, telecommunications, military, and power supplies. It can be used in paralle-offset circuit and unidirectional circuit for many applications like automotive ICs, electronic control unit (ECU) protection, shared access terminals, automotive LED backlights and motherboard, LCD display protection, or alternator output protection.

The working principle of CDSOD323-T18LC diode is connected in parallel with the System On Chip (SOC) to provide circuit protection. When the voltage over/underrun occurs, the diode is triggered by the high surge voltage or static electricity. The current then passes through the diode, reducing the voltage without affecting the circuit. The trapped current induces a reverse voltage that will forward bias the diode until the voltage reaches the desired setpoint. This ensures that the structure will remain undamaged and will continue to work properly.

Typically, the CDSOD323-T18LC diode is used in combination with a resistor to allow modified peak current to be applied to the circuit and hence provide additional protection. As the current running through the diode is small, the voltage drop is also low, hence reducing the power dissipation. Additionally, the CDSOD323-T18LC diode is designed in such a way that it can withstand high voltage transients and protect from overvoltage and undershoot.

In conclusion, CDSOD323-T18LC diode is the perfect choice for integrated circuit protection, as it is robust and cost-effective. It features a wide breakdown voltage range, excellent transient immunity performance, and a low input capacitance. Furthermore, it can be used in various application fields, from automotive ICs to power supplies. Thanks to its versatile characteristics, CDSOD323-T18LC ensures robust, reliable protection from damaging power surges.

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