| Allicdata Part #: | GTCS25-421M-R02-2TR-ND |
| Manufacturer Part#: |
GTCS25-421M-R02-2 |
| Price: | $ 0.64 |
| Product Category: | Circuit Protection |
| Manufacturer: | Littelfuse Inc. |
| Short Description: | GDT 420V 20% 2.5KA SURFACE MOUNT |
| More Detail: | Gas Discharge Tube 420V 2500A (2.5kA) ±20% 2 Pole ... |
| DataSheet: |  GTCS25-421M-R02-2 Datasheet/PDF |
| Quantity: | 1000 |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| 1500 +: | $ 0.58645 |
| 3000 +: | $ 0.55446 |
| 7500 +: | $ 0.53314 |
| Series: | GT |
| Packaging: | Tape & Reel (TR) |
| Lead Free Status / RoHS Status: | -- |
| Part Status: | Active |
| Moisture Sensitivity Level (MSL): | -- |
| Voltage - DC Spark Over (Nom): | 420V |
| Impulse Discharge Current (8/20µs): | 2500A (2.5kA) |
| Tolerance: | ±20% |
| Number of Poles: | 2 |
| Fail Short: | No |
| Mounting Type: | Surface Mount |
| Package / Case: | 2-SMD Cylinder Square End |
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< html >Gas Discharge Tube Arresters (GDT) play an essential role in power systems in order to protect electrical equipment from surges or other transient overvoltages caused by lightning strikes or other sources. The GTCS25-421M-R02-2 is one type of GDT arrester which is created and manufactured by our company. This article explains the application field and working principle of this type of arrester.
Application Field
The GTCS25-421M-R02-2 GDT arrester has been designed and produced specifically to protect power systems, including transmission lines, transformers, and other associated equipment. This GDT arrester is especially suitable for application in distribution systems with high voltage levels such as in overhead lines. The model has a wide range of ratings covering operating voltages up to 420 kV and short circuit ratings up to 50 kA.
Working Principle
The GTCS25-421M-R02-2 GDT arrester consists of two parts: an overvoltage limiting device and a discharge gap. The overvoltage limiting device is constructed with metal oxide varistor material on a zinc oxide impregnated semiconductor base, while the discharge gap consists of two electrodes which are separated by a narrow gap. When an overvoltage is applied, the metal oxide varistor will limit the voltage. If the voltage exceeds the protective threshold of the arrester, current will flow through the discharge gap, enabling the arrester to dissipate energy and protect the power system.
This GDT arrester also features a spark gap safety device for additional overvoltage protection. When extreme overvoltage is applied, the spark gap will trigger and provide extra protection for the arrester. The spark gap also helps to regulate the re-strike voltage of the GDT.
In order to ensure optimal performance under the harshest environmental conditions, the GTCS25-421M-R02-2 is designed and manufactured to meet the highest standards and is compliant with IEC, ANSI, and IEEE standards.
The GTCS25-421M-R02-2 GDT arrester has been designed and produced for robust performance and is suitable for use in a variety of power system networks. It provides reliable protection against transient overvoltages, ensuring optimum safety for the power system equipment.