Littelfuse Inc. SK055R, a standard recovery SCR designed for robust power control applications. This through-hole component features a 1 kV blocking voltage and a 55 A RMS on-state current rating. The TO-220 Non-Isolated Tab package facilitates efficient heat dissipation. Key parameters include a gate trigger current (Igt) of 40 mA maximum and a holding current (Ih) of 60 mA maximum. Non-repetitive surge current capabilities are rated at 550 A and 650 A at 50 Hz and 60 Hz respectively. The off-state leakage current is a maximum of 30 µA, with a forward on-state voltage (Vtm) of 1.8 V maximum. Operating temperature ranges from -40°C to 125°C. This SCR is commonly deployed in industrial power supplies, motor control systems, and lighting control circuits.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: DiscontinuedPackaging: BulkDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Bulk |
| Package / Case | TO-220-3 |
| Mounting Type | Through Hole |
| SCR Type | Standard Recovery |
| Operating Temperature | -40°C ~ 125°C |
| Current - Hold (Ih) (Max) | 60 mA |
| Current - Gate Trigger (Igt) (Max) | 40 mA |
| Current - Non Rep. Surge 50, 60Hz (Itsm) | 550A, 650A |
| Current - On State (It (AV)) (Max) | 35 A |
| Voltage - Gate Trigger (Vgt) (Max) | 1.5 V |
| Voltage - On State (Vtm) (Max) | 1.8 V |
| Current - Off State (Max) | 30 µA |
| Supplier Device Package | TO-220 Non-Isolated Tab |
| Current - On State (It (RMS)) (Max) | 55 A |
| Voltage - Off State | 1 kV |
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