| PartNumber | LNK6663E | LNK6663K-TL | LNK6663K |
| Description | AC/DC Converters Off-Line Switcher PSR, LinkSwitch - HP | AC/DC Converters 21 W (85-265 VAC) 35 W (230 VAC) IC | AC/DC Converters 21 W (85-265 VAC) 35 W (230 VAC) IC |
| Manufacturer | Power Integrations | Power Integrations | Power Integrations |
| Product Category | AC/DC Converters | AC/DC Converters | AC/DC Converters |
| RoHS | Y | Y | Y |
| Mounting Style | Through Hole | SMD/SMT | SMD/SMT |
| Package / Case | eSIP-7C | eSOP-12B | eSOP-12B |
| Output Power | 21 W | 21 W | 21 W |
| Switching Frequency | 120 kHz to 136 kHz | 132 kHz | 132 kHz |
| Operating Supply Current | 1.2 mA | 900 uA | 900 uA |
| Output Current | 15 uA | 12.5 uA | 12.5 uA |
| Series | LNK6xx | LNK6xx | LNK6xx |
| Packaging | Tube | Reel | Tube |
| Type | Off Line Converter | Off Line Converter | Off Line Converter |
| Brand | Power Integrations | Power Integrations | Power Integrations |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | AC/DC Converters | AC/DC Converters | AC/DC Converters |
| Factory Pack Quantity | 48 | 1000 | 48 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Tradename | LinkSwitch-HP | LinkSwitch-HP | LinkSwitch-HP |
| Output Voltage | - | 50 V | 50 V |
| Input / Supply Voltage Min | - | 85 VAC | 85 VAC |
| Input / Supply Voltage Max | - | 265 VAC | 265 VAC |
| Topology | - | Flyback | Flyback |
| Duty Cycle Max | - | 66 % | 66 % |
| Minimum Operating Temperature | - | - 40 C | - 40 C |
| Maximum Operating Temperature | - | + 125 C | + 125 C |
| Number of Outputs | - | 1 | 1 |
| Product | - | AC/DC Converters | AC/DC Converters |