SMBJ60CA

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TVS - Diodes, such as the SMBJ60CA, are electronic components used to protect sensitive circuitry from voltage and current transients. They provide an efficient form of protection against lightning-induced high-voltage events, electrostatic discharge (ESD) and surges in Dc-DC converters; offering an effective way to protect against catastrophic device failure. The SMBJ60CA is an example of a surface mounted TVS diode specially designed for use in telecommunication, computer, industrial, consumer electronics, and automotive applications. It can also be used in sensitive logic circuits in inverter drivers, low voltage applcations, automotive, computer peripherals, electronic payment terminals, and other sensitive equipments. The SMBJ60CA features a working voltage range of 5.0 to 540 V, an operating temperature range of -55°C to 150°C, a storage temperature range of -55°C to 175°C, a peak pulse current of 60A (tp=8/20µs), and a reverse leakage current of 0.1µA. Its design includes four integrated components: a Zener diode, a Schottky diode, an avalanche diode, and two stacked varistors.

The working principle of the SMBJ60CA TVS diode is simple: when the diode is subjected to a surge, the Zener diode operates first and helps reduce the voltage to a safe level. Then the Schottky diode works, diverting the energy of the surge away from the protected circuit, preventing damage due to the "ringing" effect. At the same time, the avalanche diode GND clamp helps to divert excessive current away from the protected circuit. Finally, the varistors serve to shunt away the surge\'s high frequency noise so it does not interfere with the operation of the protected circuit.

The SMBJ60CA TVS diode is a simple and efficient device that offers excellent protection against transient voltage and current events. It is an extremely reliable component that offers a low capacitance and fast response time. Its small size allows for easy installation and it is relatively inexpensive. As such, the SMBJ60CA is an ideal solution for protecting sensitive circuits from the destructive effects of voltage transients and current surges.

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