SMAJ40A-M3/61

TVS - Diodes

Transient Voltage Suppressor (TVS) diodes protect sensitive equipment from voltage spikes and excessive electrical surges. The SMAJ40A-M3/61 is a surface mount unidirectional TVS diode with a low breakdown voltage of 12.8V. It provides electrostatic discharge (ESD) protection as well as protection from voltage transients caused by lightning storms. This device has a UHV (ultra-high voltage) lead-free termination, making it an environmental friendly solution for applications requiring ESD protection.

The SMAJ40A-M3/61 has many applications in the electronics field, specifically those involving protection from power surges and ESD. It can be used in telecommunications, automotive, medical, industrial, and consumer electronics. This device is perfect for applications that require increased thermal and current handling capabilities or those that are high speed and need higher-voltage protection. It also provides fast response time, very low leakage current, and +/- 15kV ESD protection.

The working principle of the SMAJ40A-M3/61 is based on the avalanche breakdown of the PN junction. It works by creating a channel between the junction depletion zone and the external circuit when the voltage across it exceeds the breakdown voltage. The voltage at the PN junction equalizes and a current is passed causing the junction depletion zone to enlarge and begin to conduct. This current conduction creates a very low impedance path and quickly reduces the excess voltage.

Another major benefit of the SMAJ40A-M3/61 is its low capacitance. Its low capacitance prevents any disruption of signal integrity due to the low parasitic capacitance between the source and ground. This low capacitance also enables data rates up to 500 MHz and higher to be used in data line protection. Additionally, with its low forward voltage drop of 0.75 volts, it lowers current levels and reduces the power consumption of the device being protected.

The SMAJ40A-M3/61 is an excellent choice for surge protection applications due to its low leakage current, low capacitance, and fast response time. Its UHV termination is also an environmentally friendly solution for applications requiring ESD protection. With its wide range of applications, the SMAJ40A-M3/61 is an essential element when it comes to protecting electronics from electrical surges and ESD.