VK105MK151R035P050

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TVS – Varistors, MOVs are electrical components typically used to protect circuits from surges in voltage that can cause damage to connected equipment. The VK105MK151R035P050 is one such device. The following elaborates on this device\'s application field and working principle.

The VK105MK151R035P050 is an ultra-low capacitance TVS (Transient Voltage Suppressors) diode that specially designed to protect cable interfaces, such as USB 2.0 and IEEE1394. It is available in a 0.35 pF bipolar configuration and rated to protect up to 1500 W peak pulse power with an 8/20 µs current waveform. This device contains two diode junctions in series with a common cathode. It is 3-pin SMA package with a non-conductive coating on the top.

This device is designed to offer protection from current/voltage surges and overvoltage transients. It effectively protects circuits from damaging overvoltage and current transients caused by lightning, electrostatic discharge (ESD), and other voltage-related events. It absorbs transient energies and diverts the surges away from the protected circuits.

The VK105MK151R035P050 is designed for use in high-speed data communications, such as USB, and firewire (IEEE1394) protection applications. It offers excellent clamping performance, clamping to 4V (max. voltage) at 4 A. It is ideal for cost- Conscious and high-end applications because of its low capacitance, power dissipation and small package size. It also allows for lower level of total energy absorption (LETA) providing better control of secondary current surges.

The working principle of the VK105MK151R035P050 is based on the avalanche breakdown capability of its two diodes. When the protected circuit experiences a voltage or current surge, it causes a potential difference between the anode and cathode, which creates an electric field that is strong enough to put the diode junction into the avalanche breakdown region. This results in a large current flow, dissipating the surge energy and protecting the circuit.

The VK105MK151R035P050 offers superior performance in terms of surge protection, ESD protection, and EFT (electromagnetic compatibility) protection. It is also highly reliable due to its high level of surge protection and its low capacitance. Moreover, it is also compliant with UL, CSA and VDE standards.

In conclusion, the VK105MK151R035P050 is an ultra-low capacitance TVS diode that is highly suitable for protecting USB and IEEE1394 interfaces against current/voltage surges and overvoltage transients. Its avalanche breakdown capability helps to effectively and reliably protect circuits while its low capacitance ensures high-speed data communications.

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