SMF14AT1

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The SMF14AT1 is an unidirectional transient voltage suppression diode from Littelfuse, designed to provide multi-functional protection for electronic circuits from contaminated signals and power surges. This diode can handle voltage levels up to 600 volts, making it well-suited for use in industrial systems, automotive applications, and communications networks.

The SMF14AT1 is designed to protect against over-voltage transients caused by lightning, power line variations, or an ESD (electrostatic discharge) event. It is also effective for reverse voltage protection and is compatible with inductive loads. The components are made of rugged silicone-filled epoxy that is corrosion-resistant and can withstand operating temperatures from -40°C to +125°C.

The SMF14AT1 offers reverse leakage protection up to 400 volts, enabling it to protect against spikes in reverse current. It also features a low capacitor value that can clamp small transient voltages below the peak surge intensity and protects signal pins from excessive voltage. Additionally, the transient voltage suppressor is fast responding, ensures low clamping voltage, and has a low forward voltage drop.

The SMF14AT1 works by clamping transient voltages on either thePositive or Negative outputs of an AC or DC power supply, now allowing the user to define which voltage polarity is best for their system. The breakdown voltage of the device can range from 5 to 600 volts, enabling it to effectively clamp even the highest transient voltages. The device also has built-in over-temperature and overload protection for added circuit protection.

A unique feature of the device is that it can support current transients up to 90 amps, making it useful for suppressing large power surges in commercial systems. Additionally, the device has built-in ESD protection, allowing it to withstand up to 25KV of ESD without sustaining any damage. This feature makes the SMF14AT1 particularly valuable for use in automotive and industrial systems, where ESD events are common.

The SMF14AT1 is an ideal choice for protecting electric circuits from transient voltage events because of its high voltage, low capacitance, and superior heat dissipation. It provides reliable circuit protection while being cost-effective and easy to install. The SMF14AT1 is available from Littelfuse in a variety of sizes and voltage ratings, making it suitable for a wide range of applications.

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