MXLP4KE15CA Circuit Protection

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The MXLP4KE15CA is a part of the TVS diodes series, designed to protect electronic components and systems from transient voltage and surge attacks. It is a surface-mount device (SMD) with an integrated series diode and a N-channel FET that provides high voltage transient protection from 18V to 36V. The device has a low on-capacitance of 0.2pF and a moderate reverse leakage current of 1mA. It is used in a variety of applications from consumer electronics to industrial equipment.

Applications

The MXLP4KE15CA is a versatile protection device, suitable for many different applications in the consumer electronics, automotive and industrial electronics fields. Popular applications for the device include protection against voltage transients in:

• serial and parallel communication interfaces (like SCSI, RS-232, RS-485, CAN, USB, Ethernet, etc.)
• power supply lines
• telecom equipment
• automotive electronics
• computers and other portable devices
• consumer electronics products, etc.

Working Principle

The MXLP4KE15CA is a bi-directional device, meaning it is capable of working in both directions. It has two components: a series diode and an integrated N-channel FET. When the voltage level applied across the device is below the breakdown voltage (18V to 36V) the FET is turned on and the diode is off. This allows a large amount of current (up to a maximum of 15A) to flow from one end of the device to the other, protecting the system from voltage transients.

When the applied voltage exceeds the breakdown voltage, the FET is turned off and the diode is turned on. This prevents any additional voltage from entering the system, protecting the components from damage. The device has a moderate reverse leakage current of 1mA, which helps reduce the effects of residual voltage that could otherwise damage components.

The MXLP4KE15CA also features a low on-capacitance of 0.2pF, which is beneficial for applications requiring high-frequency switching. This low on-capacitance reduces the power loss in switching applications, allowing the system to achieve maximum efficiency.

Conclusion

The MXLP4KE15CA is an excellent choice for a variety of applications requiring voltage and surge protection. The device features a low on-capacitance of 0.2pF, moderate reverse leakage current of 1mA, and an integrated N-channel FET that provides high voltage transient protection from 18V to 36V. It is suitable for many different applications in the consumer electronics, automotive and industrial electronics fields.

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