B72587H3140S251

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Transient Voltage Suppressors (TVS) are commonly referred to as Varistors, Metal Oxide Varistors (MOV), or Transil diodes. As the most popular form of overvoltage protection, they are ideal for circuit protection and are used in a wide variety of applications.

The B72587H3140S251 is a Varistor from EPCOS, and is a member of its B72500G Series. This Varistor is a non-inductive AC surge protector, and is typically used to suppress transient overvoltage in automotive applications. It is a large-sized device with a diameter of 25mm, and it has two threaded 6.3mm terminal pins. It is RoHS compliant and has a maximum peak pulse current rating of 13kA.

The B72587H3140S251 is based on the Metal Oxide Varistor (MOV) principle, and it is designed to clamp the overvoltage to a safe level and dissipate the overvoltage as heat. The MOV Varistor works by taking advantage of the high impedance of an oxide material such as ZnO or MnO2 when the voltage is kept at a certain safe level. Above this level, the impedance of the material decreases significantly to allow a rapid discharge of the overvoltage. Due to this, a surge current can be dissipated quickly, thus providing effective overvoltage protection.

The B72587H3140S251 Varistor is particularly well-suited for use in automotive applications where high voltage transients can be generated due to engine start-up, ignition transients, and electrostatic discharges. It is suitable for all automotive electrical systems and in other applications such as surge suppressors and line filters. It can also be used in audio equipment in order to eliminate AC noise caused by engine noise or spikes and surges.

The B72587H3140S251 Varistor has a surge current rating of 13kA (10/1000µs, type S) and a clamping voltage of 430V. It also has an operating temperature range of -40°C to +105°C, and is UL/CSA approved. Its peak power dissipation is 430W, and its maximum peak pulse current is rated at 13kA.

In conclusion, the B72587H3140S251 Varistor is a highly reliable solution for providing effective overvoltage protection in automotive applications, audio equipment, and other consumer electronics. It offers excellent surge current suppression and can help prevent damage to circuits due to spikes and surges. Its large size and high surge current rating make it a reliable solution for a wide range of applications.

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