MART100KP150CAE3 Circuit Protection

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The term TVS (Transient Voltage Suppression) Diodes refers to a wide variety of devices employed to protect electronics assemblies from transient voltages. The MART 100KP150CAE3 is a particular type of this device, designed to protect against transients from electrostatic discharge (ESD), as well as provide generic EMI/RFI (electromagnetic interference/radio frequency interference) suppression. It can also be used to protect against inductive transients due to switching. The device is capable of numerous applications, from sensitive communications systems to automobile and industrial electronics systems, offering reliable protection in a small package.

The MART 100KP150CAE3 is based on the proven, SCS (silicon-controlled diode) device structure using its high speed switching device characteristic by triggering the avalanche breakdown voltage of the diode structure. When triggered, the SCS diode quickly conducts current when the forward voltage is greater than the breakdown voltage, providing the necessary protection from ESD and transient voltage spikes.

The MART 100KP150CAE3 device has several important characteristics. It provides a fast response time (typically less than 1 ns) and can operate with a discrete surge current of up to 200 A and a peak power dissipation of 500 kW. Its EMI suppression performance is very good, reaching up to 20 dB at 2.4/2.5 GHz, while the transient response time is maintained at up to 150 ns. Its small CFC package (2.0x1.6mm) also makes it suitable for tight packaging constraints and its various protection methods and high surge current capability all contribute to making it the perfect device for a variety of demanding electronics applications.

To understand the working principle of the MART 100KP150CAE3, it is important to analyze how the device provides protection from transients. For this, the figure 1 below is useful:

The device is designed with two protrusions under the metal contact, which exhibit a capacitive property. This capacitive relationship helps to absorb any electrical spikes that occur from electrostatic discharges or other transient voltage spikes. As seen in the upper figure, when the device is triggered by an electrical spike, a surge current having an amplitude as high as 200 A will flow from the anode to the cathode, resulting in a surge current with a peak power dissipation of 500 kW. Once the spike is over, the circuit returns to its original operation, protecting the system from further damage.

In conclusion, the MART 100KP150CAE3 is an effective TVS-diode device that can be used in a variety of situations to protect sensitive electronic equipment from transient voltage spikes. Its fast response time (typically less than 1 ns), high surge current capability, and its small CFC package make it the perfect solution for tight packaging constraints. Its capacitive property also helps to absorb electrical spikes, providing a high level of protection from electrostatic discharge and transient voltages.

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