2026-35-A1

Series:	TRIGARD® 2026
Packaging:	Tube
Part Status:	Active
Voltage - DC Spark Over (Nom):	350V
Impulse Discharge Current (8/20µs):	20000A (20kA)
Tolerance:	±20%
Number of Poles:	3
Fail Short:	Yes
Mounting Type:	User Defined
Package / Case:	Cylinder No Lead, 3 Terminal

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Introduction

Gas Discharge Tubes (GDTs) are an essential component of the modern lightning protection system. GDTs are used to protect equipment in a wide variety of applications from the damaging effects of lightning, electrostatic, and induced electro-magnetic transient surges. They are extremely versatile and able to protect against both direct and indirect lightning strikes. The process of protecting equipment against the harmful effects of transient voltage surges is closely tied to the working principle of the GDT.

2026-35-A1 Application Field

The 2026-35-A1 GDT is an industry-leading surge arrestor used in industrial, commercial, and residential applications to protect all types of equipment from the volatile effects of electric surge currents. It is ideal for applications such as telecommunications, data centres, cable TV/satellite systems, motor control systems, switching applications, and numerous commercial and industrial systems.

Working Principle

The 2026-35-A1\'s main function is to temporarily divert any electrical surge current away from the device or system that it is protecting. This occurs when a potential difference is created between the electrodes of the GDT due to an external electrical surge coming in contact with the GDT. This potential difference causes the surrounding gas to ionize, resulting in a spark bridge forming between the electrodes. The current surge then flows through the spark bridge, creating an alternate path for the current. This alternate path happens to be a much more conductive pathway than the one the current surge is trying to traverse, due to the fact that the resistance of the spark bridge is much lower. As a result, the current surge is diverted away from the device or system it is protecting, and the energy is safely discharged.Once the GDT has diverted away the electrical surge, the spark bridge is broken, and the GDT resets itself, ready to provide protection against the next current surge. This entire process happens in a matter of microseconds, and thus protects the device or system that the GDT is protecting from the damaging effects of transient voltage surges.

Conclusion

In conclusion, the 2026-35-A1 GDT is an industry-leading surge arrestor used in a variety of applications to protect equipment from the volatile effects of lightning, electrostatic, and induced electro-magnetic transient surges. Its working principle revolves around temporarily diverting any electrical surge current away from the device or system it is protecting. This occurs when a potential difference is created between the electrodes of the GDT, which causes the surrounding gas to ionize and a spark bridge formed, creating an alternate path for the current surge. Once the current has been diverted, the spark bridge is broken, and the GDT resets itself, ready to protect against the next surge. This working principle is crucial to keeping critical equipment safe in a wide variety of industries.

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