MXLSMCJ26AE3 Circuit Protection

TVS - Diodes

TVS diodes, also known as Transient Voltage Suppressor diodes, are electronic devices designed to protect other semiconductor devices from an electrostatic discharge (ESD) or from electrical transients induced by lighting or other temporary voltage spikes that can cause serious damage to sensitive electronic components.

The MXLSMCJ26AE3 is a surface-mount, low-capacitance, unidirectional TVS diode. It helps to protect one line of an integrated circuit (IC) from electrostatic discharge or other transient voltage events. The device provides transient overvoltage protection for single line to ground and is designed to meet the requirements of the IEC 61000-4-2 (ESD) international ESD protection standard.

The MXLSMCJ26AE3 has a maximum unidirectional peak pulse power dissipation of approximately 10 Watts and a maximum non-repetitive peak pulse current of 8.0 Amps.

The working principle of the MXLSMCJ26AE3 is based on the avalanche breakdown effect, which is the phenomenon that occurs when the voltage applied across an occasionally non-uniform region of a semiconductor material exceeds its breakdown voltage. At the point of avalanche breakdown, carriers generation becomes more than the carrier recombination rate hence leading to a net increase in the number of charge carriers. This, in turn, leads to a sharp increase in the electric current carried by the current-carrying region.

Once the voltage exceeds the breakdown voltage, the voltage across the diode further increases due to the increased current, leading to a phenomenon known as the avalanche multiplication effect. This effect further amplifies the electric current within the device, and thus it is capable of limiting any high-power transient voltage surges or ESD events before it reaches the downstream semiconductor device.

In conclusion, the MXLSMCJ26AE3 is a low-capacitance, single-line unidirectional TVS diode designed to protect sensitive semiconductor components from voltage surges or ESD events by leveraging the avalanche breakdown and avalanche multiplication effect. It has a maximum unidirectional peak pulse power dissipation of 10 Watts and a maximum non-repetitive peak pulse current of 8.0 Amps.