SMCJ250C

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Transient voltage suppression (TVS) diodes are a type of surge protection device (SPD) designed to protect low-voltage systems from voltage spikes, such as those generated by lightning, electrostatic discharge (ESD), and switching transients. The SMCJ250C is a unidirectional, bi-directional transient voltage suppression device designed for protection against overvoltage transients in electronic equipment.

SMCJ250C devices are specifically designed to meet the harsh environment requirements of today\'s automotive systems, such as load dump, extended -40°C to +125°C temperature range, and high humidity. The SMCJ250C is ideal for suppressing voltage transients in sensitive automotive electronic devices, such as ABS, CANbus, and airbags.

The device has a voltage breakdown of 175V , is rated for 250W surge power, and has one-fifty device voltage points. The device provides excellent surge performance for low-capacitance loads and also conforms to the UL 1449 3-rd Edition surge test requirements. It has an operating temperature range from -65°C to +150°C and is rated for 250W peak power.

The working principle of SMCJ250C can be divided into two parts. The first part is the breakdown voltage mechanism, which is responsible for the device\'s ability to suppress transients. In this process, when the voltage across the SMCJ250C exceeds its breakdown voltage, it will conduct a large amount of current and effectively dissipate the voltage spike. The second part is the clamping voltage mechanism, which puts an upper limit on the voltage that the device can dissipate. The clamping voltage, also known as the “clamping ratio”, is the ratio between the maximum voltage the device can sustain and the breakdown voltage.

The SMCJ250C device has a number of application fields. It can be used to protect machinery and electronic devices against voltage surges caused by short circuits, lightning, and other external sources. It is also commonly used in the automotive industry, as it is capable of providing effective protection against electrical interference in automotive systems.

In addition, the device can also be used for secondary protection in applications requiring surge protection, such as cellular base stations, radar equipment, and medical electronics. The device is also suitable for a wide range of other applications in which a transient voltage suppressor is required. Because of its high current carrying capability and low clamping voltage, the SMCJ250C is also ideal for protecting against ESD events.

The SMCJ250C is a compact and cost-effective transient voltage suppression device that offers excellent performance in a wide range of applications and environments. Its capabilities make it an ideal choice for protecting electronic equipment from transient voltage surges.

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