SMBJ15CAHE3/52

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A TVS diode is an electronic component designed to protect downstream circuitry from overvoltage transients such as electrical spikes. SMBJ15CAHE3/52 is part of the family of Transient Voltage Suppressors (TVS) diodes offered by ON Semiconductor. This diode was designed to protect against lightning surges, high energy transients, and electrostatic discharges (ESD) and was specifically created for applications involving automotive electronics.

The SMBJ15CAHE3/52 has an operating voltage range of 11V to 25V and can withstand an avalanche energy rating of up to 17.5mJ. From a structural perspective, this diode has two Terminals (a ‘+’ and a ‘-‘): when a voltage is applied to the diode, current flows through; if the voltage exceeds the breakdown voltage, the diode will conduct, which is known as avalanche breakdown.

The SMBJ15CAHE3/52\'s primary application field is automotive electronics. The diode is used for ESD protection in any devices utilizing automotive power systems, such as infotainment systems, sensors, and control units. The diode also provides protection against voltage transients generated by the power systems of the vehicle, such as those caused by faulty wiring, spark and lightning strikes, and electrostatic discharges.

The working principle of the SMBJ15CAHE3/52 is simple: if the voltage applied to the diode is more than the breakdown voltage then the diode will "conduct" and the downstream circuitry will be protected. If the applied voltage is below the breakdown voltage, then the diode will not conduct and the downstream circuitry will not be protected.

In summary, the SMBJ15CAHE3/52 is a TVS diode designed for automotive electronic applications such as sensors, infotainment systems, and control units. The operating voltage range is 11V to 25V and the diode can withstand an avalanche energy rating of up to 17.5mJ. It works by conducting electricity if the voltage applied to the diode is more than the breakdown voltage, thus protecting the downstream circuitry from any potential electrical spikes.

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