SMBJ78A-13-F

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A TVS diode, also known as a Transient Voltage Suppression diode, is a device used to protect electrical circuits from excessive voltage. The SMBJ78A-13-F is a 13-volt 600-watt unidirectional TVS diode, designed to protect sensitive electronic components and systems from over-voltage transients induced by lightning, switching loads, and inductive loads. This diode is suitable for automotive, telecommunications, industrial, and consumer applications.

The SMBJ78A-13-F is constructed of two elements: the Diode Limiting Resistor (DLR) and the TVS diode. The DLR serves to limit the maximum voltage on the TVS diode’s cathode. The DLR is typically connected in parallel with the TVS diode, which allows it to pass the current while limiting the voltage on the cathode. The DLR has a resistance of typically 1.0 ohm. The DLR also limits the voltage on the anode of the diode to a maximum of 15 volts.

The TVS diode element acts to provide protection from the transient voltage. When a transient voltage is applied to the anode of the diode, the TVS diode will clamp the voltage at a predetermined level, usually ranging from 24 to 40 volts. The TVS diode is connected in reverse bias to the DLR, limiting the voltage on the diode’s cathode and protecting the sensitive electronic components. In addition, the TVS diode is designed to have a low forward voltage drop, allowing for high efficiency.

The SMBJ78A-13-F can be used to protect sensitive electronic components from over-voltage transients in a variety of automotive, telecommunications, industrial, and consumer applications. The device is ideal for applications such as telecommunication systems, automotive systems, industrial machines, computers, and consumer appliances, all of which are vulnerable to electrical transients. The SMBJ78A-13-F is also designed to withstand high temperatures and to operate in harsh environments.

The SMBJ78A-13-F also offers excellent thermal stability, allowing for a stable performance in extreme temperatures. The device is also easy to install and has a small footprint. Additionally, it has been tested for environmental compliance and is approved for use in safety and hazardous locations. Finally, the device meets the RoHS requirements for lead-free assembly.

In summary, the SMBJ78A-13-F is an ideal TVS diode for protecting sensitive electronic components and systems from over-voltage transients. The device offers excellent thermal stability and a small footprint, and is suitable for a variety of automotive, telecommunications, industrial, and consumer applications. Additionally, the SMBJ78A-13-F meets RoHS requirements for lead-free assembly and has been tested for environmental compliance.

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