LNBTVS4-221S

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TVS diodes are essentially specialized devices used to protect sensitive electronic components from high-voltage signals, surge voltages, and transients. The LNBTVS4-221S is an advanced transient protection technology found in hybrid and integrated silicon devices for the protection of sensitive networks.

The Application Field of the LNBTVS4-221S

The LNBTVS4-221S provides optimal protection against a wide array of transient events seen in high-voltage systems, including automotive and consumer industrial applications. The advanced protection technology inherent in the LNBTVS4-221S offers the reliability of up to 20 discrete components or 5 diodes since the device is programmable and customizable. Its advanced performance also includes an absorption voltage range of 24 V and a voltage spike uniformity of 10%, offering protection to critical circuits by providing fast response time with low clamping voltages.

The LNBTVS4-221S device expands protection to additional industrial applications requiring protection from transient events with its enhanced discharge capability. Devices with this enhanced rating provide immunity to class C or C+ surges and extended joule ratings of up to 170J. The application field for the device is therefore expanded to include consumer electronic applications such as notebook and desktop computers, gaming consoles, mixers, amplifiers, docking stations, adapters, power supplies, fire alarms, and other industrial applications including telecommunications and SCADA systems.

The Working Principle of the LNBTVS4-221S

The LNBTVS4-221S is often referred to as a data protection or smart clamp device due to its specific transient protection capability. It works by detecting the voltage level of the signal it is protecting, and when the level is exceeded, the device quickly absorbs the excess voltage to ground. The device is designed with an internal switch capable of opening and closing in response to case temperature.

When a voltage above the threshold limit is detected, the static switch opens and biases the junction of the silicon network, allowing excess current to flow from the signal power line to an external resistor. The exhaustion of this current stops the voltage from increasing further. The device is activated and the excess energy dissipation protect the network from damage. The current is then directed from the resistor and dissipated as heat. The device’s switch continuously monitors the temperature of the device during operation and closes when sufficient cooling has occurred, limiting the dissipation of energy and preventing damage to the sensitive network.

The advanced transient protection technology of the LNBTVS4-221S is also designed to protect the device from high-voltage burnout and transient over-voltage spikes. It has built-in current and voltage suppression to guard against surges and lightning, providing a higher level of protection compared to standard clamping diodes. The device’s integrated design eliminates the need for external components, which further increases the efficiency of the protected network.

Conclusion

The LNBTVS4-221S device is an ideal choice for protecting sensitive networks against high-voltage signals, surges, and transients. Its advanced transient protection technology allows for fast response times with low clamping voltages and enhanced discharge capability. The device’s integrated design eliminates the need for external components, while its static switch opens and closes in response to case temperature to provide additional protection. This advanced protection technology makes the LNBTVS4-221S an ideal solution for automotive, consumer industrial, and telecommunications applications.

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