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Diodes - Rectifiers - Arrays

The ISL9K30120G3 is a rectifier diode array that provides 18 input/output lines featuring 1200V breakdown voltage, 15A per diode and less than 1V forward voltage drop.

Applications

The ISL9K30120G3 is designed to protect sensitive systems from high voltage transients and electrical surges. It can be used in motor control, power conversion, inverters, rectifiers and voltage regulators to protect from ESD, lightning, ripple and overvoltage events. It is ideal for home appliances, lighting and UPS power applications.

Working Principle

The ISL9K30120G3 works with a four-layer design consisting of two anode and two cathode diodes. When the anode and cathode are connected, the current flow is prevented, thus providing protection against high voltage transients and electrical surges. The four-layer design also provides superior temperature coefficients and lower forward voltage drops as compared to other higher-priced power components.

The device also includes a fusibility resistor which is in parallel with the diode array and can be used to limit the maximum current that can flow through the device. This is used to further protect from over-voltage situations. If a fault occurs the resistor will burn out and prevent current from flowing through the device limiting any damage to the system.

In normal operation, the voltage across each diode is between the respective anode and cathode, limited by the breakdown voltage of 1200V. When a higher voltage is applied, the current will increase until the device is destroyed. By limiting the applied voltage, the ISL9K30120G3 can help to reduce the occurrence of these dangerous electrical events.

Conclusion

The ISL9K30120G3 is an efficient and cost-effective rectifier diode array designed to protect against high voltage transients and electrical surges. It features a four-layer design, 1200V breakdown voltage, 15A per diode, and fusibility resistor. It is ideal for home appliances, lighting, motor control and UPS power applications, making it an ideal solution for protecting a wide range of applications from electrical hazards.

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