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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
SL1021B500RGGDT 500V 20KA 3 POLE TH |
4,884 | - |
|
Datasheet |
Axial Cylinder, 3 Lead (Radial Bend) | SL1021B | Tray | Obsolete | 500 V | 20000A (20kA) | - | 3 | Yes | Through Hole |
|
SL1021B150CGDT 150V 20KA 3 POLE |
2,752 | - |
|
Datasheet |
Cylinder No Lead, 3 Terminal | SL1021B | Tray | Active | 150 V | 20000A (20kA) | - | 3 | No | User Defined |
|
GDT212E-35-A-BXGDT 350V 30KA 2 POLE |
5,110 | - |
|
Datasheet |
Cylinder No Lead | GDT212E | Box | Active | 350 V | 30000A (30kA) | ±20% | 2 | No | User Defined |
|
GDT212E-30-A-BXGDT 300V 30KA 2 POLE |
7,295 | - |
|
Datasheet |
Cylinder No Lead | GDT212E | Box | Active | 300 V | 30000A (30kA) | ±20% | 2 | No | User Defined |
|
GDT212E-42-A-BXGDT 420V 30KA 2 POLE |
3,145 | - |
|
Datasheet |
Cylinder No Lead | GDT212E | Box | Active | 420 V | 30000A (30kA) | ±20% | 2 | No | User Defined |
|
GDT212E-25-A-BXGDT 250V 30KA 2 POLE |
7,838 | - |
|
Datasheet |
Cylinder No Lead | GDT212E | Box | Active | 250 V | 30000A (30kA) | ±20% | 2 | No | User Defined |
|
GDT212E-23-A-BXGDT 230V 30KA 2 POLE |
3,759 | - |
|
Datasheet |
Cylinder No Lead | GDT212E | Box | Active | 230 V | 30000A (30kA) | ±20% | 2 | No | User Defined |
|
GDT212E-47-A-BXGDT 470V 30KA 2 POLE |
9,280 | - |
|
Datasheet |
Cylinder No Lead | GDT212E | Box | Active | 470 V | 30000A (30kA) | ±20% | 2 | No | User Defined |
|
GDT212E-50-A-BXGDT 500V 30KA 2 POLE |
9,126 | - |
|
Datasheet |
Cylinder No Lead | GDT212E | Box | Active | 500 V | 30000A (30kA) | ±20% | 2 | No | User Defined |
|
SL1021B230CFGDT 230V 10KA 3 POLE |
7,787 | - |
|
Datasheet |
Cylinder No Lead, 3 Terminal | SL1021B | Tray | Active | 230 V | 10000A (10kA) | - | 3 | Yes | User Defined |
|
SL1021B260CFGDT 260V 10KA 3 POLE |
9,560 | - |
|
Datasheet |
Cylinder No Lead, 3 Terminal | SL1021B | Tray | Active | 260 V | 10000A (10kA) | - | 3 | Yes | User Defined |
|
|
PMT3(310)15004GDT 150V 20KA 3 POLE TH |
6,437 | - |
|
- |
Axial Cylinder, 3 Lead (Radial Bend) | PMT3(310) | Tray | Obsolete | 150 V | 20000A (20kA) | - | 3 | No | Through Hole |
|
|
PMT825004GDT 250V 20KA 3 POLE TH |
9,508 | - |
|
Datasheet |
Axial Cylinder, 3 Lead (Radial Bend) | PMT8 | Tray | Obsolete | 250 V | 20000A (20kA) | - | 3 | No | Through Hole |
|
|
PMT840004GDT 400V 20KA 3 POLE TH |
2,227 | - |
|
Datasheet |
Axial Cylinder, 3 Lead (Radial Bend) | PMT8 | Tray | Obsolete | 400 V | 20000A (20kA) | - | 3 | No | Through Hole |
|
|
PMT3(310)23004GDT 230V 20KA 3 POLE TH |
4,612 | - |
|
- |
Axial Cylinder, 3 Lead (Radial Bend) | PMT3(310) | Tray | Obsolete | 230 V | 20000A (20kA) | - | 3 | No | Through Hole |
|
|
PMT809004GDT 90V 20KA 3 POLE THROUGH HOLE |
6,382 | - |
|
Datasheet |
Axial Cylinder, 3 Lead (Radial Bend) | PMT8 | Tray | Obsolete | 90 V | 20000A (20kA) | - | 3 | No | Through Hole |
|
|
PMT3(310)25004GDT 250V 20KA 3 POLE TH |
8,071 | - |
|
- |
Axial Cylinder, 3 Lead (Radial Bend) | PMT3(310) | Tray | Obsolete | 250 V | 20000A (20kA) | - | 3 | No | Through Hole |
|
CG5350LFGDT 350V 5KA 2 POLE THROUGH HOLE |
3,213 | - |
|
- |
Axial Cylinder | CG5 | Tape & Reel (TR) | Active | 350 V | 5000A (5kA) | - | 2 | No | Through Hole |
|
GTCT38-401M-R20GDT 400V 20KA 3 POLE TH |
5,851 | - |
|
- |
Axial Cylinder, 3 Lead (T-Shape) | GTC | Tray | Active | 400 V | 20000A (20kA) | ±20% | 3 | No | Through Hole |
|
GTCA28-402L-R03GDT 4000V 3KA 2 POLE TH |
9,618 | - |
|
- |
Axial Cylinder | GTC | Tray | Active | 4000 V | 3000A (3kA) | ±15% | 2 | No | Through Hole |

