| PartNumber | CG21000L | CG21000 | CG21000LSTR |
| Description | Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 1000V NOM | Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 1000V | Gas Discharge Tubes / Gas Plasma Arrestors GP S.A. STAN. 1000V |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse Inc. |
| Product Category | Gas Discharge Tubes - GDTs / Gas Plasma Arrestors | Gas Discharge Tubes - GDTs / Gas Plasma Arrestors | Gas Discharge Tube Arresters (GDT) |
| RoHS | Y | Y | - |
| Series | CG2 | CG2 | CG / CG2 |
| Peak Pulse Current | 20 kA | 20 kA | 10 A |
| DC Sparkover | 1 kV | 1 kV | 1 kVDC |
| Number of Electrodes | 2 Electrode | 2 Electrode | 2 Electrode |
| Termination Style | Axial | SMD/SMT | - |
| Failsafe Protection Y/N | Failsafe Not Protected | Failsafe Not Protected | - |
| Diameter | 8.1 mm | 8.1 mm | 8.1 mm |
| Length | 6.07 mm | 6.07 mm | 62 mm |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 90 C | + 90 C | - |
| Packaging | Tray | Bulk | Tape & Reel (TR) |
| Technology | Gas Discharge Tube | Gas Discharge Tube | Gas Discharge Tubes |
| Type | 2 Pole Gas Discharge Tube | 2 Pole Gas Discharge Tube | Mini Surge Arrester |
| Brand | Littelfuse | Littelfuse | - |
| Mounting Style | Through Hole | SMD/SMT | - |
| Insulation Resistance | 10 GOhms | 10 GOhms | 10 GOhms |
| Product Type | GDTs - Gas Discharge Tubes / Surge Arresters | GDTs - Gas Discharge Tubes / Surge Arresters | - |
| Factory Pack Quantity | 350 | 1200 | - |
| Subcategory | GDTs - Gas Discharge Tubes | GDTs - Gas Discharge Tubes | - |
| Number of Poles | - | - | 2 |
| Operating Temperature Range | - | - | - 40 C to + 90 C |
| Package Case | - | - | Axial Cylinder, Radial SMT Bend |
| Mounting Type | - | - | Surface Mount |
| Tolerance | - | - | - |
| Voltage DC Spark Over Nom | - | - | 1000V |
| Impulse Discharge Current 8 20μs | - | - | 10000A (10kA) |
| Fail Short | - | - | No |
| Failsafe Protection Y N | - | - | Failsafe Not Protected |