P4KA27HE3/73

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TVS - Diodes are devices that protect sensitive electronic systems from potential damage due to transient voltage spikes. The P4KA27HE3/73 is a transient voltage suppression (TVS) diode designed for use in motor vehicle applications. This diode has an extended range of operational conditions, making it suitable for protecting electronic systems from high voltage, ESD, and lightning induced transients.

The P4KA27HE3/73 is comprised of a low inductance ceramic substrate, a two-layer, 70 v carbide substrate, and a TVS diode with an average stand-off voltage (VWM) of 23.5 volts. It offers unidirectional or bidirectional transient protection and can handle current up to 5 amps with a minimum breakover clamping voltage (VCBO) of 48 volts.

The primary application of the P4KA27HE3/73 is in the protection of motor vehicle electrical systems from voltage spikes due to electrostatic discharge (ESD), lightning, and other transient voltage sources. The diode offers an extended operating temperature range of -30° to +150°C, making it suitable for use in automotive and commercial environments where temperatures can fluctuate significantly.

The working principle of the P4KA27HE3/73 is based on the breakdown of a diode due to an applied voltage across the diode that exceeds the breakdown voltage. When this voltage is exceeded, an avalanche breakdown occurs, and a conduction path is created that allows current to pass through the diode and quickly suppress the transient voltage. The P4KA27HE3/73 features reverse element absorption to aid in clamping and absorption of the transient voltage spike.

The P4KA27HE3/73 offers a wide range of protection features, including low clamping voltage, increased temperature range, and low leakage current. It provides protection against ESD, lightning, inductive spike, and over-voltage transients. The diode also offers low rate of failure and low capacitance for increased signal transmission efficiency. The unique construction and design of the P4KA27HE3/73 make it suitable for a variety of everyday automotive applications, including spark plug systems, engine control systems, and instrumentation.

In summary, the P4KA27HE3/73 is a versatile TVS diode that offers high performance protection against transient voltage spikes. It is designed for use in motor vehicle applications, where it provides ESD, lightning, and over-voltage protection. The diode offers a wide temperature range and increased signal transmission efficiency, making it suitable for a variety of automotive and commercial applications.

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