MAPLAD36KP45CAE3

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TVS (Transient Voltage Suppressor) diodes are an important component for suppressing transient (or large) voltage spikes in an AC or DC circuit. The MAPLAD36KP45CAE3 is an example of this type of diode. It is an Automotive grade Surge Protection diode used to protect against various sources of overvoltage in automotive electrical systems.

The MAPLAD36KP45CAE3 is a silicon avalanche diode with reverse breakdown voltages from 18V to 36V. It has a 9A peak pulse power rating of 450W and is suitable for 12V to 24V automotive applications. It is a two-pin device and has an SOD-128FL package which makes it very compact and ideal for tight spaces.

The MAPLAD36KP45CAE3 is designed to provide protection against overvoltage transients from internal or external sources, such as load dumps, voltage spikes, inductive switching, and ESD. It is also capable of limiting or clamping the voltage at a particular value, even when the current is high. This helps to reduce the risk of overvoltage damage to sensitive electronics.

The working principle of the MAPLAD36KP45CAE3 is, essentially, that it operates as a voltage-dependent resistor (VDR). When the voltage across it rises above the threshold voltage of the diode, the current flows freely, through a substrate like silicon. The current flow is limited, which prevents the voltage from exceeding the breakdown voltage of the device, thus protecting the surrounding electronics. The reverse voltage also works in a similar fashion, limiting the reverse current and protecting the device further.

Typical protection applications for the MAPLAD36KP45CAE3 include automotive, domestic appliances, consumer electronics, military and industrial electronics, and power management. It is ideal for voltage clamping and ESD protection. Due to its high power rating, the MAPLAD36KP45CAE3 can be used for load dump and voltage spike protection, as well as in automotive applications, such as start/stop systems, engine immobilizers, DC/DC converters, alternators, and fuel delivery systems.

In conclusion, the MAPLAD36KP45CAE3 is a two-pin Automotive grade Surge Protection diode. It is designed to protect against overvoltage transients, load dumps, voltage spikes, inductive switching, and ESD. Its 9A peak pulse power rating of 450W makes it suitable for 12V to 24V automotive applications, and it is a compact device with an SOD-128FL package. Typical protection applications include automotive, domestic appliances, consumer electronics, military and industrial electronics, and power management.

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