SMAJ40A R3G

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The SMAJ40A R3G series belongs to the TVS - Diodes family and is ideal for protecting your sensitive electronics from voltage transients caused by lightning, inductive load switching, or other surges. This series is bi-directional, meaning it can work with both positive and negative polarity signals on the input line. Those transients are clamped to a safe level by the device and voltage is discharged to ground by the internal termination resistor. Additionally, the SMAJ40A R3G features an enhanced ESD rating (up to 30kV contact and 40kV air discharge) and is also capable of providing a high degree of EMI/RFI filtering.

The SMAJ40A R3G series is designed to be used in a wide variety of applications including computers, peripheral devices, telecommunications, consumer electronics, and automotive. This series can be used to protect high speed data lines which are increasingly found in today’s electronics. By connecting this device between the power source and any sensitive input or output lines, the device can reduce the risk of damage from electrostatic discharge or overvoltage.

The working principle behind the SMAJ40A R3G series is quite simple. When an overvoltage transient or surge occurs, the series’ junction capacitance responds and quickly clamps the transient voltage to a safe level. Then, the internal Zener diode begins to conduct, discharging the voltage through the series resistor and to ground. This reduces the damage that could be caused by the transient.

The SMAJ40A R3G series has a wide operating temperature range from -55 degrees to +150 degrees Celsius and can handle up to 400 Watts of peak pulse power. It also features a low leakage current and a low capacitance of 20 picofarads and is compliant with RoHS standards.

Overall, the SMAJ40A R3G series provides fast, reliable protection for your sensitive electronics against voltage transients. It is a versatile device that can be used in a wide variety of applications and is suitable for both consumer and industrial applications. The series is also very cost-effective and can be easily integrated into existing designs at a fraction of the cost of more complex solutions.

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