MV1N8181 Circuit Protection

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TVS devices are solid-state components that protect sensitive electronic circuits from damage due to electrostatic discharges (ESD) or electrical overstresses (EOS). The MV1N81xx series of Transient Voltage Suppressor (TVS) diodes, part of STMicroelectronics’ PowIRty family of TVS devices, are designed to protect the input of load switches, MOSFETs and IGBTs, as well as other high-side or low-side switches.The MV1N81xx is a low capacitance, bi-directional EPP TVS diode designed to limit surge current and protect circuit components from over-voltage events due to transient electrical disturbances. The devices offer an operating voltage range from 8V to 180V and a capacitance of only 3pF (typical).The TVS diode’s working principle is based on the flow of current due to the voltage difference between the anode and cathode. Named “avalanche diode”, the device works by allowing current to flow in the same direction if the voltage difference is greater than the breakdown voltage. When an overvoltage condition is detected, the current rapidly increases and the diode is enabled. The diode then diverts the current to ground, thereby providing transient overvoltage protection to delicate circuits or components.The MV1N81xx series of TVS diodes, specifically, employ an EPP (Electrically Programmable Protection) technology, allowing a user to program specific Over Voltage Detection (OVD) thresholds for particular circuit protection requirements. This feature makes these devices the ideal choice for applications requiring an adjustable protection circuit, such as digital load switches, power management circuits, load switches, and Power-over-Ethernet (PoE) applications. The devices are also capable of rejecting repetitive ESD pulses, making them capable of protecting against ESD threats as well as differential-mode EFT (Electrical Fast Transient) noises.In addition, the TVS diodes feature a low reverse leakage current, along with a wide operating temperature range of -40°C to +150°C. The devices are also available in small footprints of 1.2mm × 1.2mm, making them ideal for a variety of applications, including lighting, devices and electronic control units.These TVS diodes are RoHS-compliant, and are rated for Moisture Sensitivity Level 2 (MSL2). The devices come in a variety of package types, including SOT-23-5 and SMA, and are shipped in tape and reel packaging for automated assembly.Overall, the MV1N81xx series of TVS diodes is designed to protect high-side or low-side switches, load switches, MOSFETs and IGBTs, as well as other components, from ElectroStatic Discharge (ESD) and Electrical Fast Transients (EFT) threats. The devices feature an EPP technology, allowing for adjustable protection. The TVS diodes are also capable of rejecting repetitive ESD pulses, while providing a low reverse leakage current, and operating in a wide temperature range. The devices come in small footprints, and are RoHS-compliant, making them the ideal choice for a variety of applications, including lighting, devices, and electronic control units.

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