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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
SL1003A400RFGDT 400V 10KA 3 POLE TH |
7,655 | - |
|
Datasheet |
Axial Cylinder, 3 Lead (Radial Bend) | SL1003A | Tray | Active | 400 V | 10000A (10kA) | - | 3 | Yes | Through Hole |
|
GTCR36-351M-R10-FTGDT 350V 10KA 3 POLE TH |
6,881 | - |
|
Datasheet |
Radial Cylinder, 3 Lead | GT | Tray | Active | 350 V | 10000A (10kA) | ±20% | 3 | Yes | Through Hole |
|
|
2026-23-C2FLFGDT 230V 20KA 3 POLE TH |
9,441 | - |
|
Datasheet |
Axial Cylinder, 3 Lead (Radial Bend) | TRIGARD® 2026 | Bulk | Active | 230 V | 20000A (20kA) | ±20% | 3 | Yes | Through Hole |
|
|
2026-09-C3FLFGDT 90V 20KA 3 POLE THROUGH HOLE |
8,561 | - |
|
Datasheet |
Axial Cylinder, 3 Lead (Radial Bend) | TRIGARD® 2026 | Tube | Active | 90 V | 20000A (20kA) | ±20% | 3 | Yes | Through Hole |
|
2020-42T-C4LFGDT 360V 10KA 3 POLE TH |
4,485 | - |
|
Datasheet |
Radial Cylinder, 3 Lead | 2020T | Tray | Active | 360 V | 10000A (10kA) | - | 3 | No | Through Hole |
|
GTCT38-401M-R10GDT 400V 10KA 3 POLE TH |
2,741 | - |
|
- |
Axial Cylinder, 3 Lead (T-Shape) | GT | Tray | Active | 400 V | 10000A (10kA) | ±20% | 3 | No | Through Hole |
|
GTCA28-601M-R20GDT 600V 20KA 2 POLE TH |
6,250 | - |
|
Datasheet |
Axial Cylinder | GTC | Tray | Active | 600 V | 20000A (20kA) | ±20% | 2 | No | Through Hole |
|
CG2250MSTRGDT 250V 20KA 2 POLE SMD |
5,027 | - |
|
Datasheet |
2-SMD Cylinder Square End | CG2 | Tape & Reel (TR) | Active | 250 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG2420LTRGDT 420V 20KA 2 POLE TH |
4,387 | - |
|
Datasheet |
Axial Cylinder | CG2 | Tape & Reel (TR) | Active | 420 V | 20000A (20kA) | - | 2 | No | Through Hole |
|
SL1010A230SMGDT 230V 5KA 3 POLE SMD |
3 | - |
|
Datasheet |
3-SMD Cylinder Square End | SL1010A | Tape & Reel (TR) | Active | 230 V | 5000A (5kA) | - | 3 | No | Surface Mount |
|
CG2250LSSNGDT 250V 20KA 2 POLE SMD |
4,853 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG2 | Tape & Reel (TR) | Active | 250 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG2230LSSNGDT 230V 20KA 2 POLE SMD |
9,107 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG2 | Tape & Reel (TR) | Active | 230 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG90LSSNGDT 90V 20KA 2 POLE SMD |
4,977 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG | Tape & Reel (TR) | Active | 90 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG110LSTRGDT 110V 20KA 2 POLE SMD |
3,562 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG | Tape & Reel (TR) | Active | 110 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG2600GDT 600V 20KA 2 POLE |
8,880 | - |
|
Datasheet |
Cylinder No Lead | CG2 | Bulk | Active | 600 V | 20000A (20kA) | - | 2 | No | User Defined |
|
CG2145LSGDT 145V 20KA 2 POLE SMD |
7,716 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG2 | Tape & Reel (TR) | Active | 145 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG2230LSGDT 230V 20KA 2 POLE SMD |
9,940 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG2 | Tape & Reel (TR) | Active | 230 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG2350LSTRGDT 350V 20KA 2 POLE SMD |
8,550 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG2 | Tape & Reel (TR) | Active | 350 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG2470LSTRGDT 470V 20KA 2 POLE SMD |
2,934 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG2 | Tape & Reel (TR) | Active | 470 V | 20000A (20kA) | - | 2 | No | Surface Mount |
|
CG2145LSSNTRGDT 145V 20KA 2 POLE SMD |
3,017 | - |
|
Datasheet |
Axial Cylinder, Radial SMT Bend | CG2 | Tape & Reel (TR) | Active | 145 V | 20000A (20kA) | - | 2 | No | Surface Mount |

