SMM4F8.5A-TR Circuit Protection

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Transient voltage suppressers (TVSs) are voltage protection devices primarily used to protect electronic circuits from high voltage transients. They are manufactured by many different companies and come in a variety of technologies, including diode, Thyristor, Transzorbs, and SCR-based circuits. TVSs can be used in a variety of application areas, from automotive electronics, to medical equipment, to data communications systems.

SMM4F8.5A-TR is one of these Transient Voltage Suppressers (TVSs) that is commonly used in television sets, radios, and other consumer electronics. This particular type is a diode-based Transient Voltage Suppressor (TVS) designed for applications requiring fast response to high-voltage transients, such as those occuring during lightning. This device is also designed for use in high-frequency and low-noise ESD protection circuits.

The primary function of the SMM4F8.5A-TR is to limit the peak voltage in a circuit to a predetermined level when a voltage transient occurs. It does this by rapidly clamping the voltage at or below the breakdown voltage. The device is also protected from thermal runaway and short-circuiting, thanks to its internal “crowbar” circuit. When the voltage peak reaches the breakdown voltage of the device, the “crowbar” circuit is triggered and the device is shut down.

This device has a peak pulse current rating of 8.5A, which is suitable for applications requiring high current protection. It also has a fast response time of less than one microsecond, making it ideal for high-speed protection applications. In addition, the SMM4F8.5A-TR has an ESD protection level of up to 7.7kV, which is suitable for a wide range of ESD sensitive circuits. The device also has a lead-free, RoHS compliant package, making it suitable for a variety of consumer electronics applications.

The SMM4F8.5A-TR can be used in a number of different applications, from automotive electronics to consumer electronics to power supplies. It can be used to protect against ESD, lightning, and high-voltage transients. It is also suitable for a variety of other applications that require fast response to voltage transients.

In summary, the SMM4F8.5A-TR is a diode-based Transient Voltage Suppressor (TVS) designed for applications requiring fast response to high-voltage transients. It has a peak pulse current rating of 8.5A, a fast response time of less than one microsecond, and an ESD protection level of up to 7.7kV. It is suitable for use in a variety of consumer electronics applications, and its lead-free, RoHS compliant package makes it an ideal choice for these applications.

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