SMBJ170A R5G Circuit Protection

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TVS - Diodes are widely used to absorb surge voltages in various domains such as Industrial, Automotive, Aerospace, Medical, and Power. The TVS – Diodes are often referred to as transient voltage suppressors, transient voltage surge suppressors, or simply surge protectors. SMBJ170A R5G is one of the most commonly used TVS - Diodes, and it offers superior performance and efficiency.

SMBJ170A R5G is a fast-acting diode with a reversible polarity clamping action. It has a reverse voltage of 170 volts, a power dissipation of 5 Watts, and a capacitance of 16 pF at 10 Volts. It also features an ESD rating of 5KV Human Body Model and is ideal for protecting equipment and sensitive electronic components from high-voltage transients and surges that can be caused by Electro Static Discharge (ESD) or electrical overstress (EOS). This diode is especially suitable for automotive electrical applications, offering superior protection against over-voltage transients in harsh aspects due to its ultra-low dynamic impedance.

SMBJ170A R5G offers a wide range of protection capabilities. It can be used to protect against several types of electrical transients, including ESD and EMI related transients such as electromagnetic interference, electrostatic discharge, and electrical overstress. The diode has a very low dV/dt threshold and typically recovers in less than 10µs. It also has a very low parasitic capacitance and a very fast reverse recovery time, which makes it suitable for protecting against fast transients.

SMBJ170A R5G can also be used to protect sensitive electronics from over-voltage transients caused by lightning strikes or power line surges. The diode is ideal for protecting against power surges up to 170 volts in high voltages circuits. The device has a high peak pulse power capability and an ultra-low clamping voltage, which means it can effectively absorb excessive amounts of energy without damaging the circuit.

The working principle of the SMBJ170A R5G is based on the principle of reverse biasing. When the diode is reverse biased, the voltage across it is equal to its breakdown voltage. If the applied voltage is higher than this breakdown voltage, the diode will be activated and the voltage will remain at the breakdown voltage until the voltage decreases or the current passes through the diode. Then, the voltage will immediately drop to a safe level, thus protecting the circuit from over-voltage transients.

SMBJ170A R5G is a widely used TVS - Diode with superior performance and efficiency, which is especially suitable for protecting sensitive electronic components from destructive high-voltage transients. It is an affordable and reliable protection device that is ideal for a wide range of industrial, automotive, aerospace, medical, and power applications.

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