P4SMA10C Circuit Protection

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Transil diodes are silicon based bidirectional voltage clamp components designed to protect against electrostatic discharges (ESD) that can damage or degrade the characteristics of sensitive electronic circuitry. The P4SMA10C is a unidirectional Transil diode which combines ESD protection with low leakage current. This device helps to protect sensitive electronic methodology such as data transmission systems and high frequency power supplies.

P4SMA10C Application Field: The TVS diode is often used in automotive, industrial, medical, telecom and computer applications. It can protect sensitive components, such as power supplies and data transmission systems, from ESD. It can withstand a maximum off-state voltage of 400V, and has a maximum clamping voltage of 14.0V for IEC 61000-4-2 level 4 15KV (air), 8KV (contact). The P4SMA10C has a reverse leakage current of 100nA at 400V, allowing it to operate continuously for extended periods of time without generating excessive heat.

P4SMA10C Working Principle: The P4SMA10C is a unidirectional Transil diode in which an avalanche effect is used to clamp the voltage. When an electrostatic discharge occurs, the avalanche effect is initiated, resulting in a voltage clamp. The clamped voltage is the product of the avalanche breakdown voltage, a voltage dependent on doping and junction quality. The P4SMA10C has a breakdown voltage of 10V, which is sufficient to protect sensitive electronic components from permanent ESD damage. The current it can carry safely is limited by its maximum power dissipation. Too much current could cause the diode to overheat and be damaged.

The P4SMA10C is capable of handling battery reversal transients up to 125V. It is designed to be used in a variety of AC/DC and AC/DC power supplies, with its low reverse leakage current not exceeding 100nA at 400V. This ensures that a power supply will not be affected by any unwanted voltage leakage.

The P4SMA10C TVS diode is a reliable and cost effective way of protecting high frequency power supplies and data transmission systems from ESD. It is able to withstand ESD at the IEC 61000-4-2 level 4 certification standard with a maximum off-state voltage of 400V and a maximum clamping voltage of 14.0V. The device also has a reverse leakage current of 100nA at 400V, which ensures that power supplies will not be affected by any unwanted leakage. This makes the P4SMA10C a reliable and cost effective device for protecting sensitive electronic circuitry from electrostatic discharges.

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