SA36CAHE3/54 Circuit Protection

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TVS (Transient Voltage Suppression) Diodes are electrical components specifically designed and built to protect sensitive electronic equipment against certain levels of electrical surges and noise. This type of diode is also known as an esd (electrostatic discharge) diode, and includes the SA36CAHE3/54.

The SA36CAHE3/54 is an ultra-small, low-capacitance esd-protection chip designed to protect from voltage spikes. It provides a low-capacitance ESD protection of up to 12.5kV, and is designed to be used in a variety of applications where a low capacitance is required. These applications include circuit boards, personal computers, and other electronic devices.

The SA36CAHE3/54 features an integrated positionally independent and repeatable ESD protection of up to 12.5kV, and its extremely low capacitance ESD protection of up to 12.5kV allows it to be used in applications such as I/O ports, data bus lines, and other high speed signal transmission lines. The device is made up of two chips, one for the ESD protection and the other for the precision surge absorption. The ESD protection chip is made up of a series of metal oxide varistors (MOVs) and a zener diode, while the surge absorption chip is composed of several diodes that act as a clipper circuit to absorb uncontrolled voltage and current levels.

The SA36CAHE3/54 is designed to protect connected electronic components from the damaging effects of electrostatic, lightning, induced power line surge, radio frequency interference (RFI), and power cross conditions, all of which can cause permanent damage to unprotected electronics. It is important to note that this type of diode is not intended to be a replacement for a main power supply and should not be used in that context as it cannot provide adequate protection from power surges.

The working principle of the SA36CAHE3/54 is quite simple. When an ESD event is detected the MOVs are activated, diverting the current away from the sensitive components and dissipating it internally. The zener diode prevents over-voltage conditions while the clipper circuit diodes absorb the extra surge current. The SA36CAHE3/54 also has thermal protection built in, allowing the device to shut down if it gets too hot.

The SA36CAHE3/54 is an incredibly versatile device that can be used in a wide variety of electronic applications, including circuit boards, personal computers, and other electronic devices. Its low capacitance and high voltage ESD protection make it an ideal choice for protecting sensitive equipment from voltage surges and ESD events. With its superior ESD protection and low capacitance, the SA36CAHE3/54 is sure to provide reliable and effective protection for any electronic application.

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