SMCJ100HE3/9AT

TVS – Diodes are widely used in the automotive industry for protection against transients caused by lightning, electrostatic discharges (ESDs) and interface static discharge (ISDs). The SMCJ100HE3/9AT is one of the most popular TVS – Diodes in the market. It is used to protect automotive electronics from voltage transients from 12V to 600V.

The SMCJ100HE3/9AT is composed of two elements, an N-Channel MOSFET and p-n-p-n bi-directional thyristors. The N-Channel MOSFET provides low capacitance and high operating speed. This is ideal for protecting automotive ECUs and other sensitive components from voltage transients and ESD events. On the other hand, the p-n-p-n bi-directional thyristor is used to provide a high peak pulse current rating and fast response.

In terms of application field, the SMCJ100HE3/9AT is suitable for use in all automotive and industrial applications that require ESD and transient voltage protection. It is commonly used in the automotive industry for protection from transient voltage events in the range of 12V to 600V. In industrial applications, it is used to protect sensitive components from voltage transients caused by ESD, EFT and electrical disturbances.

As for the working principle, the SMCJ100HE3/9AT works by transferring the transient voltage spike and current away from the protected component. When a voltage transient occurs, the MOSFET turns on quickly and transfers the electrical current away from the protected device. Meanwhile, the thyristor redirects the current into a discharge path. This effectively removes the voltage transient from the protected device.

In summary, the SMCJ100HE3/9AT TVS – Diode is a popular device for protecting automotive electronics from voltage transients caused by ESD, EFT and lightning events. It is composed of an N-Channel MOSFET and p-n-p-n bi-directional thyristor, which provide low capacitance, fast operating speed, and high peak pulse current rating. It is suitable for use in all automotive and industrial applications, and it works by diverting the current away from the protected device.