| PartNumber | SL1021B230R | SL1021B230RF | SL1021B230C |
| Description | Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 184-276V 10A Beta 3 Terminal | Gas Discharge Tubes / Gas Plasma Arrestors 184-276V 10A Beta 3 Terminal | Gas Discharge Tubes / Gas Plasma Arrestors 184-276V 10A Beta 3 Terminal |
| Manufacturer | Littelfuse | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | Gas Discharge Tubes - GDTs / Gas Plasma Arrestors | Gas Discharge Tube Arresters (GDT) | Gas Discharge Tube Arresters (GDT) |
| RoHS | Y | - | - |
| Series | SL1021A | SL1021B | SL1021B |
| Peak Pulse Current | 20 kA | 20 kA | 20 kA |
| DC Sparkover | 230 V | 230 VDC | 230 VDC |
| Number of Electrodes | 3 Electrode | 3 Electrode | 3 Electrode |
| Termination Style | Radial | Radial | Solder Pad |
| Failsafe Protection Y/N | Failsafe Not Protected | - | - |
| Diameter | 8 mm | 8 mm | 8 mm |
| Length | 10.5 mm | 10.5 mm | 10.5 mm |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 90 C | - | - |
| Packaging | Tray | Tray | Tray |
| Technology | Gas Discharge Tube | Gas Discharge Tube | Gas Discharge Tube |
| Type | 3 Pole Gas Discharge Tube | Gas Plasma Arrester | Gas Plasma Arrester |
| Brand | Littelfuse | - | - |
| Mounting Style | Through Hole | Through Hole | SMD/SMT |
| Insulation Resistance | 10 GOhms | 1 GOhms | 1 GOhms |
| Product Type | GDTs - Gas Discharge Tubes / Surge Arresters | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | GDTs - Gas Discharge Tubes | - | - |
| Unit Weight | 0.035274 oz | - | - |
| Number of Poles | - | 3 | 3 |
| Operating Temperature Range | - | - 40 C to + 90 C | - 40 C to + 90 C |
| Package Case | - | Axial Cylinder, 3 Lead (Radial Bend) | Cylinder No Lead, 3 Terminal |
| Mounting Type | - | Through Hole | User Defined |
| Tolerance | - | - | - |
| Voltage DC Spark Over Nom | - | 230V | 230V |
| Impulse Discharge Current 8 20μs | - | 20000A (20kA) | 20000A (20kA) |
| Fail Short | - | Yes | No |
| Failsafe Protection Y N | - | Failsafe Protected | Failsafe Not Protected |