SMBJ85CA

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The SMBJ85CA is a typical voltage protection device of transient voltage suppressors (TVS). It is a bidirectional unidirectional and low capacitance transient voltage suppressor diode redly available in Silicon SMB (Small, Medium, and Big) packages. It can be used with a wide range of applications, including in consumer electronics, telecommunications, automotive electronics, medical electronics, and computers.

The SMBJ85CA is designed to protect sensitive components from damage due to voltage transients, such as electrostatic discharge (ESD) and to provide greater circuit protection compared to traditional MOVs. It also has the ability to provide protection against high voltage transients and surge protection due to its design and robust construction. Additionally, the device features a low capacitance of 25 pF at 1.5V, ensuring increased design flexibility and optimal performance.

The SMBJ85CA consists of a bidirectional zener diode in series with an unidirectional diode, which provide a low capacitance bidirectional protection for consumer electronics applications. This arrangement is specially designed to protect sensitive circuits from ESD. The device can safely and reliably protect voltage transients up to 15kV per waveform.

The SMBJ85CA has a maximum peak pulse power dissipation of 600W, a maximum working voltage of 8.5V, and a working temperature range of -55℃ to 150℃. This wide temperature range helps to ensure reliable operation in an ambient temperature environment. Additionally, the device is designed to have a high clamping voltage and low leakage current, reducing the risk of short circuit.

In terms of its working principle, the SMBJ85CA uses a breakdown diode and resistor combination that works to clamp the voltage to a safe level. The breakdown voltage of the device is determined by the zener voltage and resistance of the resistor. When a voltage transient exceeds the breakdown voltage, the extra voltage is diverted away and the device clamps the voltage back down to a safe level.

In conclusion, the SMBJ85CA is an effective solution for voltage protection and surge protection in consumer electronics, telecommunications, automotive electronics, medical electronics, and computer applications. It offers a low capacitance values of 25 pF at 1.5V, and a wide temperature range of -55℃ to 150℃ with maximum peak pulse power dissipation of 600W and a maximum working voltage of 8.5V. It is a bidirectional unidirectional transient voltage suppressor diode that can protect circuits from ESD and voltage transients up to 15kV per waveform. Furthermore, the device works using a breakdown diode and resistor combination that clamps the voltage to a safe level.

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