MP4KE170A

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MP4KE170A is a Transient Voltage Suppression Diode, consisting of a high-performance Zener diode and a polymeric positive temperature coefficient (PPTC) element. It is designed to limit transient voltage and increase the EMC performance for consumer electronic products such as automotive, industrial, and home applications.

The MP4KE170A is an integrated device that combines high blocking capability and low leakage current into a single component. It operates in two modes, to either block high voltages or limit current flow. The mode of operation is determined by the applied voltage. When a transient voltage is greater than the tested blocking capability of 170V, it switches to "blocking" mode, thereby limiting the peak value of the transient voltage spike. When the voltage is lower than the tested blocking capability, it switches to the "current limiting" mode, thereby providing the required amount of current necessary to protect the connected components.

When the MP4KE170A is in the "current limiting" mode, it operates by lowering the peak value of the signal while maintaining a constant voltage across its leads. This allows for higher immunity to surges and ensures that the system is not damaged or rendered inoperable due to excessive current flow. It also provides ESD and EMC performance for consumer electronic products.

The MP4KE170A provides device protection from very high voltage levels and has been designed to protect against transients of up to 17000W peak pulse power, with a typical breakdown voltage of 170V @ +25°C. It provides low capacitance at the output for improved EMC performance and a low input capacitance to ensure minimal loading. The MP4KE170A is also extremely robust and capable of high reverse-bias blocking capability even at elevated temperatures.

The MP4KE170A is an excellent solution for applications requiring higher blocking capability and low leakage current such as automotive, industrial, and home applications. It is an ideal choice for ESD and EMC protection on consumer electronic products. It will increase the safety and reliability of your products and reduce the chance of product failure due to transient voltages. The device can be used in various applications ranging from PCs to automotive infotainment systems.

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