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TVS - Diodes

The P6KE13AG is a device designed to protect against transient voltage spikes and is one of the most common form of Transient Voltage Suppression (TVS) diodes. TVS diodes are used to protect sensitive electronic components from the high voltages produced by transient events, such as lightning or electrostatic discharge (ESD). By providing a low impedance path to ground, they divert the surge to a safe location and limit the voltage being applied to the protected components. TVS diodes are a low cost and highly effective method of preventing damage to electronic components.

Application Fields

The P6KE13AG is designed to protect against voltage spikes up to 13V. This makes it suitable for use in many applications, including:

• Telecommunications / Networking Equipment
• Indoor / Outdoor Lighting
• Consumer Electronics
• Automotive Electronics
• Medical Equipment
• Industrial Equipment

Working Principle

TVS diodes work on the principle of avalanche breakdown. Avalanche breakdown occurs when the voltage applied to a semiconductor device exceeds the junction\'s breakdown voltage. This causes the depletion layer in the junction to break down, allowing charge carriers to flow in the reverse direction. The P6KE13AG is a unidirectional device, meaning it will conduct current only in the reverse direction.

When a voltage spike occurs, the P6KE13AG regulator will quickly begin to conduct current in the reverse direction. The voltage across the semiconductor will then drop to a safe level, preventing damage to any sensitive components connected to it. The device will then cease to conduct current, and the system will return to its normal operation.

While TVS diodes are effective at protecting against transient voltage spikes, it is important to remember that they are not a substitute for good circuit design. They should only be used to supplement an existing protection scheme and will not be effective in situations where the initial surge is too large to be dissipated by the regulator.

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