SMBJ8.5CA

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The SMBJ8.5CA from STMicroelectronics is a Thyristor and Diode TVS (Transient Voltage Suppressor) designed for overvoltage protection. It is designed to offer excellent transient protection for automotive, industrial, communication, and other applications. The device is a surface mount component that can be used in a broad range of applications, such as reverse polarity protection, overvoltage protection, power supply surge protection, and load dump protection. This device also provides protection against voltage spikes with its low clamping voltage, low capacitance, high temperature stability, and fast response time.

The SMBJ8.5CA is a unidirectional TVS that offers protection from ESD (Electrostatic Discharge) and surge events. It includes a thyristor ring, with two diodes connected in anti-parallel to act as the transient suppressor element. This assembly is housed in a JEDEC compliant package (SMBJ8.5CA). The total assembly provides fast response times, low dynamic resistance, and high-current handling capability. When the device is required to provide overvoltage protection, it features low dynamic resistance of <2Ω. The device also has an open base configuration, allowing for connections in either common anode or common cathode configurations.

The SMBJ8.5CA has a wide range of applications, including automotive, industrial, communication, power supplies, and electrical equipment protection, among others. The device is able to provide overvoltage protection for both high and low voltage faults, and can be used in any situation where voltage transients and spikes occur. Its high-speed switching capability makes it an ideal choice for circuits that are sensitive to overvoltages.

The working principle of the SMBJ8.5CA revolves around its two diodes connected in anti-parallel. When the voltage across the device is greater than the voltage across the two diodes, the diode connected to the positive voltage rail becomes forward biased, which activates the thyristor. This in turn prevents the voltage from increasing further, thus clamping it at the threshold voltage of the device. The device then dissipates the energy as heat, protecting the circuit from further damage.

The device also offers high temperature stability, allowing it to be used in harsh environmental conditions. It can withstand temperatures up to 125°C without significant degradation of performance. The SMBJ8.5CA also offers high ESD Immunity, providing up to +/- 30kV of Electrostatic Discharge immunity, and up to 1.5kV of Human Body Model immunity.

The SMBJ8.5CA is an ideal choice for overvoltage protection applications and can be used in a variety of different applications, including automotive, industrial, communication, power supplies, and electrical equipment. The device provides a fast response time and high-current handling capability, making it an ideal choice for circuits that are sensitive to overvoltages. The device also offers a wide range of temperature stability, ESD immunity, and high voltage protection, making it a great choice for applications that require surge and ESD protection.

The specific data is subject to PDF, and the above content is for reference