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| PartNumber | UG4A-E3/54 | UG4A | UG4A-E3/51 |
| Description | Rectifiers 50 Volt 4.0A 20ns 150 Amp IFSM | Rectifiers 50 Volt 4.0A 20ns 150 Amp IFSM | |
| Manufacturer | Vishay | Vishay Semiconductor Diodes Division | - |
| Product Category | Rectifiers | Diodes, Rectifiers - Single | - |
| RoHS | E | - | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | DO-201AD | - | - |
| Vr Reverse Voltage | 50 V | - | - |
| If Forward Current | 4 A | - | - |
| Type | Fast Recovery Rectifiers | - | - |
| Configuration | Single | Single | - |
| Vf Forward Voltage | 0.95 V | - | - |
| Max Surge Current | 150 A | 150 A | - |
| Ir Reverse Current | 5 uA | - | - |
| Recovery Time | 30 ns | 30 ns | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 150 C | + 150 C | - |
| Packaging | Reel | Tape & Reel (TR) Alternate Packaging | - |
| Height | 5.3 mm | - | - |
| Length | 9.5 mm | - | - |
| Product | Rectifiers | Ultra Fast Recovery Rectifiers | - |
| Width | 5.3 mm | - | - |
| Brand | Vishay Semiconductors | - | - |
| Product Type | Rectifiers | - | - |
| Factory Pack Quantity | 1400 | - | - |
| Subcategory | Diodes & Rectifiers | - | - |
| Unit Weight | 0.038801 oz | 0.038801 oz | - |
| Series | - | - | - |
| Package Case | - | DO-201AD, Axial | - |
| Mounting Type | - | Through Hole | - |
| Supplier Device Package | - | DO-201AD | - |
| Speed | - | Fast Recovery = 200mA (Io) | - |
| Diode Type | - | Standard | - |
| Current Reverse Leakage Vr | - | 5μA @ 50V | - |
| Voltage Forward Vf Max If | - | 950mV @ 4A | - |
| Voltage DC Reverse Vr Max | - | 50V | - |
| Current Average Rectified Io | - | 4A | - |
| Reverse Recovery Time trr | - | 30ns | - |
| Capacitance Vr F | - | 20pF @ 4V, 1MHz | - |
| Operating Temperature Junction | - | -55°C ~ 150°C | - |
| Vf Forward Voltage | - | 0.95 V | - |
| Vr Reverse Voltage | - | 50 V | - |
| Ir Reverse Current | - | 5 uA | - |
| If Forward Current | - | 4 A | - |