5KP58A-E3/73

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Transient Voltage Suppression (TVS) diodes are essential components in electrical systems to protect against voltage transients, which may cause destruction or interference. 5KP58A-E3/73 is a specially designed TVS diode for automotive applications. It provides bi-directional, low-capacitance protection from high-speed voltage transients.

This type of TVS diode is a leaded device in a SOD-80 package. It has an integrated zener diode with internal protection against the simultaneous occurrence of reverse voltage and forward currents over-voltages. It has an improved surge capability up to +/-25V. This provides superior protection against surge voltages that are generated from over or under voltages of the power supply, and from back EMF spikes and ESD. The device also features a small size, low thermal resistance, fast response time, and geometry capability.

The 5KP58A-E3/73 is used in a wide range of automotive applications such as Electric Vehicle Supply Equipment (EVSE) and Vehicle-to-Grid (V2G) systems. It protects such automotive electronics from excessive voltage transients by dissipating any potential surge to the ground safely. To do this, the device absorbs and redirects any transient voltage that exceeds its breakdown voltage limit, preventing it from reaching sensitive components.

Working Principle

The 5KP58A-E3/73 is designed to protect circuits from transient voltage by utilizing a junction-type PN diode. The diode is designed to operate in reverse breakdown, with a reverse voltage that is below its absolute maximum ratings. When a reverse voltage is applied to the diode, it generates a high electric field in the junction, which generates a substantial number of electron-hole pairs. The current is able to flow, resulting in the dissipation of the energy to the ground.

The reverse current of the 5KP58A-E3/73 is temperature-dependent and is highest at the maximum operating temperature, which is 25ºC. The maximum reverse current is 0.5mA for a 25µA peak pulse current. The response time is typical of a junction diode: 1ns on the positive side, and 3ns on the negative side.

In conclusion, the 5KP58A-E3/73 is a TVS diode that is designed for automotive applications. It provides bi-directional, low-capacitance protection from high-speed voltage transients. The device absorbs and redirects any transient voltage that exceeds its breakdown voltage, preventing it from reaching sensitive components. This PN diode operates in reverse breakdown mode, generating a high electric field in the junction which then dissipates the energy to the ground. The 5KP58A-E3/73 is ideal for use in EVSE and V2G systems, providing reliable protection against voltage transients.

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