SL1024A420RF

Series:	SL1024A
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	420V
Impulse Discharge Current (8/20µs):	10000A (10kA)
Tolerance:	--
Number of Poles:	3
Fail Short:	Yes
Mounting Type:	Through Hole
Package / Case:	Axial Cylinder, 3 Lead (Radial Bend)

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Gas Discharge Tube Arresters (GDT)

The SL1024A420RF is a Gas Discharge Tube (GDT) arrester. It is an electronic component used to protect other circuitry, such as telecommunications systems, against damage due to high voltage impulse or surges. A GDT arrester is a nonlinear device that dissipates high voltages by switching high voltages from the protected system to a low voltage rail within the arrester. This type of arrester is well-suited for applications requiring reliable and fast protection from lightning strikes and other surge events.

Application Field

GDT arrester devices are used to protect vulnerable circuits and components from overvoltage damage due to lightning or high-voltage surges. The SL1024A420RF offers protection for AC circuits rated up to AC 200V. It is proficient in providing reliable fast Voltage Limiters for all rated voltages. Applications for GDT arresters include telecom towers, radio broadcast antenna, rooftop equipment, outdoor communications equipment, early warning systems, and unmanned offshore monitoring stations, and many more.

Working Principle

The GDT arrester works on the two-terminal GDT principle. It is composed of a delicate electrode insulation, a spark gap between said electrodes, and a resistive element. It operates on an energy absorption philosophy. When voltage surges enter into the GDT arrester, the spark gap fires, then the nonlinear characteristics of the electrode insulation and the resistive element absorb the energy and clamp the voltage. The detained voltage is suppressed to a safe level, which can be up to volts lower than the peak voltage. This process is repeated until the voltage surge is eliminated.The attenuating performance of GDT type arrester is closely related to the ability of the given device to absorb the voltage surge. This results in significant power dissipation which calls for a robust arrester design. The SL1024A420RF boasts an excellent surge current capability as well as superior overvoltage protection. It also uses an optimized structure to reduce the inrush current and provide superior clamping voltage stability.

Conclusion

The affordable and reliable SL1024A420RF GDT arrester is the perfect solution for high power protection applications. It features fast response times, efficient energy absorption, and superior impulse clamping. The device is suitable for use in a variety of applications such as telecom towers, radio broadcast, rooftop equipment, outdoor communications equipment, and many more.

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