SMC3K43CAHM3/9A Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS (Transient Voltage Suppressor) diodes are special type of diodes which are used to protect sensitive equipments from power surges, electrostatic discharge (ESD) and other transients. SMC3K43CAHM3/9A is an alternate form of a transient voltage suppression device which is designed to protect systems from voltage overshoots and other power surge. In this article, we will discuss about the application field and working principles of the device.

Application Field

SMC3K43CAHM3/9A is a used in the field of power surge protection. Its applications include Aerospace, automotive areas, portable electric devices, and LCD TV sets. It is suitable for the voltage clamp of high-speed lines such as LAN, SCSI, and IEEE424.

SMC3K43CAHM3/9A offers an over voltage protection to sensitive electronic components that may suffer from over-voltage surges, such as ICs, resistors, capacitors, transistors and other important electronic components. This protection is provided by the surge protector which is connected directly across the electronic device. The surge protector reduces the peak voltage of the over-voltage surges and prevents any damage to the device.

Working Principle

SMC3K43CAHM3/9A works on an interrupted avalanche breakdown (IAB) principle. When the voltage exceeds the strike voltage, the electrons and holes collide with each other and ionize the air in the junction. This increased number of charges creates a high electric field between the electrodes which further accelerates the electron-hole pair generation. The additional current that pass through the junction, lowers the break down voltage and protects the connected device from over voltage.

The device features an internal power dissipation to dissipate the energy during fault conditions. It also features an automated reset which re-energizes the device after the over-voltage is removed. SMC3K43CAHM3/9A combines the efficiency of Break Down Voltage with Reverse Leakage Current and ESD protection to provide the best level of protection possible.

SMC3K43CAHM3/9A is an advantageous device which is specifically designed to provide the necessary protection to embedded devices and help in preventing damage caused by power surge and overvoltage. The device features a low clamping voltage and fast response time.

In conclusion, SMC3K43CAHM3/9A is an effective transient voltage surge protector and is used mainly for the protection of sensitive laptops, camera, mobile phones and other electronic equipment from power surge and ESD. The device’s application field covers aerospace, automotive area, portable electric devices, and LCD TV sets.

The specific data is subject to PDF, and the above content is for reference