LCE20A Circuit Protection

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Traditional electronic systems commonly find use of a variety of transistors, capacitors, inductors, fuse, diodes, surge protection components, and other components to protect devices from surge damage and the effect of electrostatic discharge. Among these components, the TVS (Transient Voltage Suppressor) diode, also referred to as a transient voltage protection diode or varistor, has found increasing use in recent years due to its ability to protect electronic circuits from sudden voltages surges. The TVS diode is a bidirectional, voltage-triggered two-terminal device which acts as a transient voltage absorber.

One of the most popular bidirectional TVS diodes is the stand-alone, high-power LCE20A. This TVS diode is manufactured by China-based LECRO, and is a surface mounted SMD type voltage protection diode. It is useful for providing overvoltage protection and ESD protection for power supply designs, and features a unique three-diode, single-negative-single-positive (SNSP) construction.

The LCE20A is designed to be used in 5.5V application fields, and it has a highly efficient surge absorption capacity that is capable of exceeding 4KV as far as peak cumpency. The device itself only dissipates a modest 6V of voltage, allowing for a higher amount of current to flow through the device whenever an overvoltage incident occurs. The device also provides outstanding ESD protection in both of its bidirectional channels, with a human body model protection of 8KV.

In terms of its construction, the LCE20A features three diodes, one positive, and two negative. The positive and negative diodes are connected in series, with the two negative diodes in series and the third diode connected in parallel across both of them. This construction allows for superior current handling capabilities, and it also reduces the voltage drop across the device during normal operation. In layman’s terms, the TVS diode acts as a check valve that barricades excessive voltage, allowing the normal operation of the electronic circuit to go uninterrupted.

In terms of its usage, the LECRO-manufactured LCE20A can be used in a variety of applications. It is well suited for use in sub-system protection of peripherals and external power supplies. It can also be used in power line protection applications and for improving system reliability. It is also effective for LCD monitor protection, and for protecting other electronic systems and components from overvoltage damage.

The LCE20A is a highly functional, low cost TVS diode that is capable of providing reliable surge and ESD protection to a variety of electronic systems. Its unique, three-diode SNSP configuration and its highly efficient surge absorption capacity allow for an unprecedented level of protection from surges and unwanted voltages. The device’s ability to dissipate only 6V of voltage during surge protection also makes it a highly efficient solution, and it can be used in a variety of applications.

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