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| PartNumber | P3504UALTP | P3504UALRP | P3504UAL |
| Description | Thyristor Surge Protection Devices (TSPD) 4Chp 320/640V 50A | Thyristor Surge Protection Devices (TSPD) 4Chp 320/640V 50A | |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse Inc. |
| Product Category | Thyristor Surge Protection Devices (TSPD) | Thyristor Surge Protection Devices (TSPD) | TVS - Thyristors |
| RoHS | Y | Y | - |
| Holding Current Ih Max | 150 mA | 150 mA | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | Modified-MS-013-6 | Modified-MS-013-6 | - |
| Packaging | Tube | Reel | Tape & Reel (TR) Alternate Packaging |
| Current Rating | 2.2 A | 2.2 A | 2.2 A |
| Series | MS-013 | MS-013 | SIDACtorR |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | TSPDs | TSPDs | - |
| Factory Pack Quantity | 500 | 1500 | - |
| Subcategory | Thyristors | Thyristors | - |
| Tradename | SIDACtor | SIDACtor | SIDACtor |
| Package Case | - | - | 6-SOIC (0.295", 7.50mm Width) |
| Capacitance | - | - | 20pF, 35pF |
| Number of Elements | - | - | 4 |
| Voltage Breakover | - | - | 400V, 800V |
| Voltage Off State | - | - | 320V, 640V |
| Current Peak Pulse 10 1000μs | - | - | 45A |
| Voltage On State | - | - | 4V |
| Current Peak Pulse 8 20μs | - | - | 150A |
| Current Hold Ih | - | - | 150mA |