A5KP17A-G Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are sometimes referred to as suppressor diodes. TVS diodes are suitable for protection against overvoltage of all types; electrostatic discharge, inductive load switching, lightning strikes, and other transients. The A5KP17A-G is a common TVS diode typically used in circuit protection applications.

The A5KP17A-G Diode has two major components: an active N-channel MOSFET and a separate diode, which is also known as a “clamp diode". The MOSFET is the main component of the device and provides fast response to overvoltage events, while the clamp diode ensures that the overvoltage is clamped down to a safe level.

The A5KP17A-G is rated for a breakdown voltage of 17V and a peak pulse power of 5KW, with operating voltages ranging from 5V to 17V. The device has a typical clamping voltage of 20V and a very low typical leakage current of less than 1uA at 25V. The operating temperature range of the A5KP17A-G diode is from -55C to +125C.

A5KP17A-G devices are typically used in a variety of applications, including industrial equipment, automotive electronics, and consumer electronics. They are used to protect sensitive components from overvoltage events, such as ESD, inductive loads, and lightning strikes. In automotive electronics, they are used to protect the ECU, or engine control unit, from overvoltage events. In consumer electronics, they are used to protect delicate components such as LCDs and touchscreens.

The A5KP17A-G diode works on the principle of voltage clamping. When a transient electrical surge, such as an ESD or an inductive load, occurs, the diode quickly conducts current to create a clamping voltage. This clamping voltage is equal to the breakdown voltage of the diode, which is 17V in the case of the A5KP17A-G. As long as the voltage does not exceed the breakdown voltage, the diode can conduct current and protect the components connected to it.

Another important feature of the A5KP17A-G is its low capacitance. The low capacitance helps to reduce signal integrity problems associated with high speed signals and reduce the risk of crosstalk. The A5KP17A-G also has a low stand-off voltage, which helps to reduce the risk of false triggering due to static charge build-up.

Overall, the A5KP17A-G diode is a popular choice for circuit protection applications. It is easy to mount, has a wide operating temperature range, and has a low clamping voltage, making it suitable for a variety of applications. The low capacitance ensures signal integrity and protects against crosstalk and the low stand-off voltage reduces the risk of false triggering.

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