SMDJ7.5A

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SMDJ7.5A TVS (Transient Voltage Suppressor) diodes have multiple applications, as these devices are designed to protect sensitive circuits from voltage transients, electric fluctuation, and overvoltage, which may result in catastrophic events. The SMDJ7.5A is an uni-directional device specifically designed to protect circuits from voltages up to 7.5kV in peak pulses.

Given its high breakdown voltage tolerance and low signal leakage current, SMDJ7.5A is suitable for protecting various AC/DC, circuits and power lines from high frequency lightning surges, as well as important communication lines, computers, and peripherals. These diodes are also used to protect industrial, automotive, and other commercial electronics from electrostatic discharge caused by human contact.

The device consists of four identical silicon transient voltage suppressor diodes. It is a surface-mounted devices rated at 7.5 KW (Kilo Watts). It is RoHS compliant, and its fast response time, and low operating and clamping voltages are designed to protect sensitive electronics from destructive over-voltage transients. The device has an operating junction temperature range of -55°C to +150°C.

SMDJ7.5A TVS diodes operate by clamping the voltage at a predetermined breakdown level. In effect, these diodes limit the voltage increase beyond what is deemed safe for other components, and they absorb harmful energy from power surges. This clamping action occurs instantaneously as soon as the reverse transient voltage exceeds the specified breakdown voltage (VBR) of the device.

The device is passive, meaning it does not require any external power source to activate its clamping function. When the transient voltage exceeds the specified breakdown voltage of the diode, the diode switches on and begins to conduct current through it, which is then attenuated across the diode and dissipated as heat. Once the transient voltage is below the breakdown voltage, the diode will switch off and the voltage will no longer be clamped.

The device is protected from thermal and electrical stress by special operating and derating conditions. Additionally, due to its short recovery time, the diode can be used in applications with high-frequency repetition rates. Current repetition rates differ from each SMDJ series device depending on the breakdown voltage of the device.

In summary, SMDJ7.5A TVS diodes are a reliable means of protecting sensitive electronic circuits against voltage transients, electric fluctuation, and overvoltage. Its superior design allows for robust protection, with fast response time and low operating and clamping voltages. The SMDJ7.5A is suitable for protecting circuits in industrial, automotive, and commercial electronics applications.

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