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| PartNumber | D4020L | D4020L52 | D4020L52TP |
| Description | Rectifiers 400V 20A | Rectifiers 400V 20A | SCR THYRISTOR |
| Manufacturer | Littelfuse | Littelfuse | - |
| Product Category | Rectifiers | Rectifiers | - |
| RoHS | Y | Y | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | TO-220-2 | TO-220-2 | - |
| Vr Reverse Voltage | 400 V | 400 V | - |
| If Forward Current | 12.7 A | 12.7 A | - |
| Type | Fast Recovery Rectifiers | Standard Recovery Rectifiers | - |
| Configuration | Single | Single | - |
| Vf Forward Voltage | 1.6 V | 1.6 V | - |
| Max Surge Current | 300 A | 300 A | - |
| Ir Reverse Current | 0.1 mA | 0.1 mA | - |
| Recovery Time | 4 us | 4 us | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Series | Dxx15L/Dxx20L/Dxx25L | - | - |
| Packaging | Tube | Bulk | - |
| Height | 9.4 mm (Max) | - | - |
| Length | 10.67 mm (Max) | - | - |
| Product | Rectifiers | Rectifiers | - |
| Termination Style | Solder Pin | Solder Pin | - |
| Width | 4.78 mm (Max) | - | - |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | Rectifiers | Rectifiers | - |
| Factory Pack Quantity | 500 | 500 | - |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | - |
| Part # Aliases | D4020LTP | - | - |
| Unit Weight | 0.081130 oz | 0.211644 oz | - |