MXL1.5KE10CA Circuit Protection

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A transient voltage suppression (TVS) diode is an electronic component used primarily to protect sensitive devices from voltage short spikes, such as those produced by electrostatic discharge (ESD), lightning, or inductive load switching. The MXL1.5KE10CA is a silicon avalanche diode designed for transient overvoltage protection. It is a uni-directional TVS diode and is intended for use in those electronic circuits that require protection against voltage transients.

Typically, an avalanche diode is used in circuits that are exposed to high voltages, such as in voltage regulators or motor controllers. The MXL1.5KE10CA is designed for use in automotive electronics applications, specifically for protection against ESD and load switching transients, or to protect components from overvoltage scenarios. The device is designed for 12-volt to 48-volt systems and can handle up to 2.5KA mpulses.

In terms of applications, the MXL1.5KE10CA is most commonly used for automotive electronics, including ECUs, injectors, and transmission control modules, as well as computers, office automation equipment, and industrial systems. This TVS diode can also be used for wireless communication (Wi-Fi, LTE, and Bluetooth), networks, and audio applications.

Working Principle

The working principle for the MXL1.5KE10CA is based on avalanche breakdown. When the applied voltage reaches a certain threshold, the current suddenly increases exponentially. This increase in current occurs due to electrons that become accelerated in the electric field of the diode. When the electrons collide with atoms, packets of energy are released, which can cause an avalanche breakdown. This mechanism allows for an exponential increase in current.

The avalanche breakdown also provides protection from transients, since the current spike is limited to a few microseconds. This also provides protection from long-term voltage overvoltage, as the device will not be damaged by the sudden increase in current. Additionally, the MXL1.5KE10CA has a low capacitance of 0.76pF at 1KV, which limits the amount of EMI generated by the device and allows for a more efficient circuit.

In summary, the MXL1.5KE10CA is a uni-directional TVS diode designed to protect sensitive electronic components and circuits from transient voltage spikes. The device is designed for use in automotive electronics applications, such as ECUs, injectors, and transmission control modules, as well as computers, office automation equipment, and industrial systems. The device employs the principle of avalanche breakdown, which prevents long-term voltage overvoltage and limits EMI.

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