P4SMA440AHE3_ALL Circuit Protection

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The P4SMA440AHE3_ALL is a type of transient voltage suppressor (TVS) diode, specifically a 400W, unidirectional diode designed for 12V applications. This diode provides overvoltage protection, limiting voltage spikes to a safe level and preventing reverse polarity surges. TVS components are an important part of many electrical systems, managing exceptionally high voltages which can cause serious damage to sensitive circuitry. The P4SM440AHEC3_ALL is built using advanced high-voltage silicon avalanche breakdown technology.

The device has a peak power capability of 400 watts, with a breakdown voltage range from 31.3V to 47V. With an average junction capacitance of 33.5pF, a clamped voltage of 16.7V, and an operating temperature range from -55C to +175C, the P4SMA440AHE3_ALL is amongst the most reliable and efficient voltage suppressor devices on the market. In non-operation mode, the device is non-conductive, ensuring low leakage current across the device and reducing energy dissipation.

The P4SMA440AHE3_ALL is a robust and widely used voltage suppressor used in a variety of applications. When used in automotive systems, the device is commonly found in engine control units, airbag triggering systems, and anti-lock braking systems. It is also used in power supplies, AC/DC converters, telecom equipment, and medical devices, providing reliable and efficient protection from electrostatic discharges and surges.

In operation, the P4SMA440AHE3_ALL works by using the avalanche breakdown principle, where electrons released through silicon within the diode cause an avalanche breakdown to occur. When a surge or spike increases the voltage above a certain threshold, it triggers the avalanche breakdown process and the device begins to conduct. Transient currents are thus redirected away from the sensitive components safely, without causing any damage.

The P4SMA440AHE3_ALL is an effective and reliable device for protecting circuits against sudden power surges and overvoltage spikes. With its robust construction, excellent surge protection capability, and precision engineering, it provides reliable protection and high performance for a wide range of applications.

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