P4KA7.5AHE3/73 Circuit Protection

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Transient Voltage Suppressors (TVS) diodes are commonly used to protect electronic circuit boards and components against the transient voltage surges that occur in power surges, spikes, ESD, EMI, and other types of electrical disturbances. The P4KA7.5AHE3/731 is a TVS diode which offers a high level of protection against these transient voltage conditions.

The P4KA7.5AHE3/73 is a general purpose TVS diode that uses the principle of clamping to protect electronic devices. This particular TVS diode has an unidirectional breakdown voltage of 7.5V and a stand-off voltage (also known as the clamp voltage) of 5V. This stand-off voltage is the level at which the diode starts to conduct current in the reverse direction, which reduces the voltage to a safe level. The P4KA7.5AHE3/73 also features a low reverse leakage current of less than 100 nA at room temperature. This combined with a high peak pulse power rating of 5.5W make this TVS diode ideal for a wide range of applications.

The primary application areas of the P4KA7.5AHE3/73 include protection of sensitive electrical components against transient voltages, overvoltages and destructive electric arcs. Its unidirectional breakdown voltage and low reverse leakage current ensure that the device is effective in these areas. In addition, its clamping action can provide a low voltage rail for TV receivers, helping to extend their lifespan.

The working principle of the P4KA7.5AHE3/73 involves the use of the avalanche effect. When a surge of transient voltage passes through the device, its electronic junctions become stimulated and the resulting avalanche breakdown shunts the majority of the energy to ground. This breakdown prevents the high voltage from damaging delicate electronic components by clamping it down to a safe level.

In summary, the P4KA7.5AHE3/73 is a reliable and cost effective TVS diode that offers a high level of protection against transient voltages and overvoltages. Its wide range of applications make it an ideal choice for protecting sensitive electronic components from transient voltage disturbances.

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