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0755-82798135Gas Discharge Tube Arresters (GDT)
Gas Discharge Tube Arresters (GDT)
Gas Discharge Tube Arresters (GDT) are circuit protection components used to protect electronic systems from high-energy surge events, lightning-induced transients and overvoltage conditions. They are widely used in communication equipment, power supplies, industrial control systems, telecom lines, networking devices, security systems, renewable energy equipment, meters and building electrical protection.
This category includes gas discharge tubes, GDT surge arresters, two-electrode GDTs, three-electrode GDTs, lightning protection arresters and related overvoltage protection components. These devices are commonly selected based on DC spark-over voltage, impulse discharge current, insulation resistance, capacitance, response characteristics, package type, safety standards and application requirements.
TomatoElec supplies original Gas Discharge Tube Arresters from recognized manufacturers such as Bourns, Littelfuse, TDK, EPCOS, Vishay, Eaton, Bel Fuse, Murata, Panasonic and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| Photo | Mfr. Part # | Availability | Price | Quantity | Datasheet | Package/Case | Series | Packaging | Product Status | Voltage - DC Spark Over (Nom) | Impulse Discharge Current (8/20µs) | Tolerance | Number of Poles | Fail Short | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
SL1122A200GDT 200V 10KA 3 POLE TH |
8,963 | - |
|
Datasheet |
Radial Cylinder, 3 Lead | SL1122A | Tray | Obsolete | 200 V | 10000A (10kA) | - | 3 | No | Through Hole |
|
SL1122A450GDT 450V 10KA 3 POLE TH |
9,637 | - |
|
Datasheet |
Radial Cylinder, 3 Lead | SL1122A | Tray | Obsolete | 450 V | 10000A (10kA) | - | 3 | No | Through Hole |
|
|
B88069X3440S102GDT 5000V 2 POLE THROUGH HOLE |
3,297 | - |
|
Datasheet |
Axial Cylinder | - | Strip | Obsolete | 5000 V | - | - | 2 | No | Through Hole |
|
GT-SMD181220012-TRGDT 200V 1KA 2 POLE SMD |
9,577 | - |
|
Datasheet |
1812 (4532 Metric) | - | Tape & Reel (TR) | Active | 200 V | 1000A (1kA) | ±20% | 2 | No | Surface Mount |
|
GT-SMD181220022-TRGDT 200V 2KA 2 POLE SMD |
3,991 | - |
|
Datasheet |
1812 (4532 Metric) | - | Tape & Reel (TR) | Active | 200 V | 2000A (2kA) | ±20% | 2 | No | Surface Mount |
|
GT-SMD181240022-TRGDT 400V 2KA 2 POLE SMD |
5,227 | - |
|
Datasheet |
1812 (4532 Metric) | - | Tape & Reel (TR) | Active | 400 V | 2000A (2kA) | ±20% | 2 | No | Surface Mount |
|
XT600CGDT 600V 2 POLE SURFACE MOUNT |
4,161 | - |
|
- |
2-SMD Cylinder Square End | XT | Bulk | Active | 600 V | - | - | 2 | No | Surface Mount |
|
CG37.5LGDT 7500V 5KA 2 POLE TH |
3,127 | - |
|
Datasheet |
Axial Cylinder | CG3 | Tray | Obsolete | 7500 V | 5000A (5kA) | - | 2 | No | Through Hole |
|
AG15PC152FS-K2UGDT 1500V 2 POLE THROUGH HOLE |
9,150 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 1500 V | - | ±500V | 2 | No | Through Hole |
|
AG20P122F-L3NGDT 1200V 2 POLE THROUGH HOLE |
2,370 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 1200 V | - | ±500V | 2 | No | Through Hole |
|
AG20P152F-H3DGDT 1500V 2 POLE THROUGH HOLE |
6,401 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 1500 V | - | ±500V | 2 | No | Through Hole |
|
AG20P152F-H3JGDT 1500V 2 POLE THROUGH HOLE |
6,894 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 1500 V | - | ±500V | 2 | No | Through Hole |
|
AG20P202F-H3DGDT 2000V 2 POLE THROUGH HOLE |
5,270 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 2000 V | - | ±500V | 2 | No | Through Hole |
|
AG20PC152F-L3NGDT 1500V 2 POLE THROUGH HOLE |
3,669 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 1500 V | - | ±500V | 2 | No | Through Hole |
|
AG20PC202F-L3NGDT 2000V 2 POLE THROUGH HOLE |
8,535 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 2000 V | - | ±500V | 2 | No | Through Hole |
|
AG20PT152F-L3NGDT 1500V 2 POLE THROUGH HOLE |
5,668 | - |
|
Datasheet |
Radial, Box | AG | Bulk | Obsolete | 1500 V | - | ±500V | 2 | No | Through Hole |
|
SL1026-1100GDT 1100V 20KA 3 POLE HOLDER |
8,734 | - |
|
Datasheet |
Cartridge | SL1026 | Bulk | Obsolete | 1100 V | 20000A (20kA) | - | 3 | No | Holder |
|
|
2026-07-AGDT 75V 20KA 3 POLE |
8,666 | - |
|
Datasheet |
Cylinder No Lead, 3 Terminal | TRIGARD® 2026 | Tube | Obsolete | 75 V | 20000A (20kA) | ±20% | 3 | No | User Defined |
|
|
2026-15-AGDT 150V 20KA 3 POLE |
7,130 | - |
|
Datasheet |
Cylinder No Lead, 3 Terminal | TRIGARD® 2026 | Tube | Obsolete | 150 V | 20000A (20kA) | ±20% | 3 | No | User Defined |
|
|
2026-20-AGDT 200V 20KA 3 POLE |
7,652 | - |
|
Datasheet |
Cylinder No Lead, 3 Terminal | TRIGARD® 2026 | Tube | Obsolete | 200 V | 20000A (20kA) | ±20% | 3 | No | User Defined |

