SMBJ30CA-TP

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Transient Voltage Suppressor (TVS) Diodes are an integral part of circuit protection, helping safeguard delicate circuitry from extreme voltage transients. The SMBJ30CA-TP is a TVS diode that provides bidirectional protection.

Overview

The SMBJ30CA-TP is an unidirectional, low capacitance, low clamping voltage TVS diode. These surge protectors, designed specifically for use in automotive applications, have a breakdown voltage of 30volts and an IPP surge power rating of 110W. The device is housed in an SMA package which is a form of leadless surface mount technology.

Application Field

Due to its wide operating temperature range, the SMBJ30CA-TP can be used in multiple automotive applications like:

• Automotive control circuits
• Communication circuits
• Sensor networks
• Power and charging systems
• Instrumentation systems
• Data acquisition systems

The improved surge and ESD capabilities provided by the low capacitance TVS diode also make it suitable for use in portable applications such as smart phones or laptop computers.

Working Principle

The SMBJ30CA-TP is a bipolar diode, meaning it can conduct current in either direction. This means it can be used to protect circuits not just from over-voltage, but also from over-current. Its two anode and cathode pins are connected to the circuit, and it is usually connected in parallel with other components. The diode can then act as a wire if the voltage is low, and as an open switch if the voltage is too high.

The SMBJ30CA-TP is designed to absorb a large amount of voltage, which is why it has a breakdown voltage of 30 V. The device has a peak reverse power rating of 110W, which indicates the amount of energy it can handle before failing. The peak power and clamping voltage are dependent on both the current and the voltage, which is why the SMBJ30CA-TP has such a wide operating temperature range.

The SMBJ30CA-TP also offers protection against electrostatic discharges (ESD). This is done by controlling the current flow and directing it away from sensitive components. This helps protect the components from being damaged by voltage transients.

Conclusion

The SMBJ30CA-TP is a versatile device which can be used in multiple automotive and portable applications. Its wide operating temperature range, low capacitance, and low clamping voltage make it ideal for protecting delicate circuitry from extreme voltage transients. Furthermore, its peak reverse power rating of 110 W and its ability to dissipate ESD make it very reliable and robust in operation.

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