SMF30A-HM3-08

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TVS diodes are a form of protection for electrical circuits used in many applications. They protect against overvoltage transients such as electrostatic discharges (ESD), electrical fast transients (EFT) and lightning-induced transients (LIT). The SMF30A-HM3-08 is a specialized type of TVS diode which is designed for the protection of sensitive electronics equipment. It is widely used in sensitive industrial equipment, automotive electronics, communication equipment, computers and media players.

The SMF30A-HM3-08 can protect equipment from transient voltages up to 30A (8/20us). Its peak pulse power rating is 240W and its peak pulse current is 30A. Its maximum clamping voltage is 33.5V and its breakdown voltage is 15V. It has a high surge capability and a fast response time. It is also SOA-capable (safe operating area) with a low operating temperature range from -40C to +125C. It is UL 1449 certified for safety and reliability.

The working principle of the SMF30A-HM3-08 relies on a nonlinear conduction mechanism. When the device is exposed to high voltage, its forward voltage drops quickly. This state is known as avalanche breakdown, which allows the current to flow through the device and absorb the transient energy. The device then “clamps” the voltage at a safe level. As the transient voltage subsides, the device returns to its nonconducting state. This mechanism provides very fast response times and efficient protection.

The SMF30A-HM3-08 can be used for protection in many applications such as computers, communications equipment, automotive electronics, and consumer devices. In computers, it can be used to protect against ESD, EFT, and LIT transients that may damage sensitive components. In automotive electronics, it can be used to protect against transient voltage caused by fluctuations in the power supply and surges in the vehicle’s electrical system. In communications equipment, it can be used to protect against electrical fast transients caused by lightning strikes or power outages. In consumer devices, it can be used to protect against electrostatic discharge, making them safe to use and reducing the risk of damage.

The SMF30A-HM3-08 is a versatile and reliable TVS diode that provides superior protection for electronics equipment of all types. It can handle high current and voltage transients, providing fast response times and efficient protection. Its UL 1449 rating ensures that it meets industry safety and reliability standards, making it an excellent choice for protecting sensitive circuits from transient voltages.

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