SA36AHE3/54 Circuit Protection

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TVS or Transient Voltage Suppressors is a specialized diode which is designed to protect sensitive electronics components from short-term voltage transients. The SA36AHE3/54 is one such example of a widely used TVS diode, combining both ESD protection and EMI suppression capabilities into a single package. This article will cover the application field and working principle of the SA36AHE3/54.

The SA36AHE3/54 is a three-terminal electrostatic discharge (ESD) device that is used to protect all types of electronic equipment from static electricity and electrostatic discharge. It consists of three terminals: the anode (positive), cathode (negative), and the center gate. It can be used in applications such as automotive, consumer electronics, industrial, avionics, telecommunication, and other applications which require reliable, effective ESD protection.

The SA36AHE3/54 is available in a variety of packages, including Dual-in-Line (DIP) and Surface Mount packages, with different lead pitches and pin combinations. The combination of its low operating voltage, fast switching speed, and low leakage current make it ideally suited for protecting delicate electronic components in high-speed digital applications.

The SA36AHE3/54 also provides protection against ElectroMagnetic Interference (EMI) caused by disrupting levels of high frequency noise. It acts as a current limiting device, suppressing and diverting any high frequency noise on the output line. It employs an advanced silicon device structure which prevents latch-up and eliminates varistor overshoot.

The SA36AHE3/54 operates on a range of different voltages and has an ultra-low capacitance between the anode and the cathode. The working principle of the device is based on the fact that it has electrodes that will perform a Zener-like breakdown process when a threshold voltage is reached. When high-energy transient voltages from an external source enter, one of the electrodes reverse-biases the diode, which in turn begin to conduct, clamping the voltage and suppressing any discharge or rise in voltage.

Once the transient voltage has been suppressed, the diode is reset to a low capacitance state so that it once again blocks the flow of current. The ultra-low capacitance of the device makes it well suited to high-speed digital applications, as it not only provides ESD protection but also reduces distortion in the signal path.

The SA36AHE3/54 is a highly efficient and reliable ESD device that has been designed to protect sensitive electronic components from short-term voltage transients without degrading signal quality. It is an ideal solution for applications where high-speed, low-power, and low-capacitance are the design requirements.

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