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| PartNumber | S4008FS31 | S4008FS24 | S4008FS21 |
| Description | SCRs 8A 200uA 400V Sensing | SCRs 8A 200uA 400V | SCRs 8A 200uA 400V Sensing |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | SCRs | SCRs | SCRs |
| RoHS | Y | Y | Y |
| Series | Sxx08FSx | Sxx08FSx | Sxx08FSx |
| Rated Repetitive Off State Voltage VDRM | 400 V | - | 400 V |
| Off State Leakage Current @ VDRM IDRM | 50 uA | 50 uA | 50 uA |
| On State RMS Current It RMS | 8 A | - | 8 A |
| Vf Forward Voltage | 1.6 V | - | 1.6 V |
| Maximum Gate Peak Inverse Voltage | 1 V | - | 1 V |
| Gate Trigger Voltage Vgt | 800 mV | - | 800 mV |
| Gate Trigger Current Igt | 500 uA | - | 200 uA |
| Holding Current Ih Max | 8 mA | - | 6 mA |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Maximum Operating Temperature | + 110 C | - | + 110 C |
| Mounting Style | Through Hole | - | Through Hole |
| Package / Case | TO-202 | - | TO-202 |
| Packaging | Bulk | Bulk | Bulk |
| Current Rating | 8 A | 8 A | 8 A |
| Type | SCRs | - | SCRs |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Non Repetitive On State Current | 100 A | - | 100 A |
| Product Type | SCRs | SCRs | SCRs |
| Factory Pack Quantity | 500 | 500 | 500 |
| Subcategory | Thyristors | Thyristors | Thyristors |
| Breakover Current IBO Max | - | - | 100 A |
| Height | - | - | 7.87 mm |
| Length | - | - | 9.78 mm |
| Width | - | - | 4.7 mm |
