SMDB24LCCTR Circuit Protection

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Introduction to SMDB24LCCTR TVS -Diodes

The SMDB24LCCTR is a popular multilayer, bidirectional diode designed by Littelfuse and used to protect circuits from overvoltage. It is a Direct Off-line®, unidirectional or bi-directional, overvoltage protection device in the SM, DB, and CC series of the popular Littelfuse family. It offers superior overvoltage protection over competing products from other leading vendors.

Application field

SMDB24LCCTR diode is mainly used in various industrial fields to protect from overvoltage transients. This diode is equipped with low capacitance, excellent clamping performance and fast response time. It is suitable for wide range of applications such as telecom, security systems, security systems, motor control, automotive systems, etc.

SMDB24LCCTR also offers excellent surge protection in the powerline. It helps protects against common rough power line transients from sources like lightning, static electricity, load switching, etc. In applications such as telecom and security systems, it helps protect circuits from transient voltage and current surges caused by ESD, RFI/EMI, and load switching. Furthermore, this diode features a built-in thermal disconnect, which helps provide protection to the downstream circuit.

Working Principle

The SMDB24LCCTR diode operates on the principle of metal oxide varistor (MOV) technology. The MOV is a variable resistor whose resistance varies depending on the applied voltage. When the voltage across its terminals increase, the resistance decreases and the current is diverted to the ground. This phenomenon is known as voltage clamping. This property of mov can be used to protect against overvoltage transients.

When the voltage across the terminals of the SMDB24LCCTR diode increases, the MOV starts to conduct and the excess current is diverted to the ground. Subsequently, the voltage across the terminals fall to a safe level. The MOV is designed to be able to handle high voltage and high current. It also limits the rise and fall time of the voltage to keep the subsequent devices from being damaged.

In the event of an inrush current due to a lightning strike or other external event, the MOV acts as a current-limiting element to protect downstream devices. The MOV acts as an open circuit during normal line conditions and changes its resistance as the voltage increases. Thus, it helps protects circuits from transient overvoltage.

Conclusion

The SMDB24LCCTR is a versatile bi-directional diode capable of providing superior protection against transient overvoltages. It features low capacitance, fast response time and excellent clamping performance. It can be used to protect circuits from ESD, RFI/EMI, and load switching, and is suitable for various applications such as telecom, security systems, motor control, automotive systems, etc. In addition, the built-in thermal disconnect provides additional protection to the downstream circuit.

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