SMBJ40A-TR

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The SMall Big Junction 40A-TR is a digital diode designed to protect sensitive electronic components from transient voltage spikes, which are common in technological applications. The device is part of the transient voltage suppressor (TVS) diode family, which provide superior protection in a variety of applications. The SMBJ40A-TR has an operating voltage range of 5-58V and can handle peak surge current of 40A (3x10s pulses). It also integrates a zener diode to provide additional protection against electrostatic discharge (ESD) as well as other destructive electrical surges.

Application Fields:

The SMBJ40A-TR is designed to protect vulnerable electronic components from overvoltage spikes, such as those caused by lightning strikes, electrical outages, and other transient events. In particular, the SMBJ40A-TR is ideal for applications requiring surge current protection such as USB ports, automotive systems, medical equipment, home appliances, and other sensitive circuit systems. The device is also used to protect telecom and networking equipment, as well as embedded systems and systems-on-chips.

Working Principle:

The working principle of the SMBJ40A-TR is fairly simple. When the incoming voltage exceeds the device’s maximum rated voltage, the device triggers its internal zener diode, which rapidly redirects the energy away from the vulnerable components. The zener diode then limits the voltage to a safe level, allowing the device to reset and resume normal operation without risk of damage or malfunction. This protection extends to a wide range of transient voltages, so the device can handle sudden voltage drops, as well as voltage spikes, without any difficulty.

Once triggered, the SMBJ40A-TR draws a minimal amount of current from the protected circuit, as the energy dissipates through the device’s internal components. This allows the device to maintain its low insertion loss, so there is minimal impact on the overall circuit performance. The device also maintains its low capacitance characteristics, allowing for better noise immunity and faster response times.

The SMBJ40A-TR is designed to be placed directly in series with the component it is intended to protect, allowing for a simple and efficient installation. The device is rated for both professional and commercial installation, making it a versatile choice for a variety of applications.

The SMBJ40A-TR is a robust and reliable protection device that offers superior performance in a variety of applications. It is the perfect solution for protecting vulnerable electronic components from transient voltage spikes, allowing for worry-free operation and enhanced circuit performance.

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