| PartNumber | FSL126HR | FSL126MRTWDTU | FSL126MR |
| Description | AC/DC Converters Green Mode Fairchild Power Switch (FPS) | AC/DC Converters 6.2Ohms 1mA 50W | AC/DC Converters FPS FOR LOW POWER |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | AC/DC Converters | AC/DC Converters | AC/DC Converters |
| RoHS | Y | Y | Y |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | DIP-8 | TO-220F | DIP-8 |
| Output Voltage | - | - | - |
| Output Power | 21 W | 40 W | 21 W |
| Input / Supply Voltage Min | 9 V | 8 V | 9 V |
| Input / Supply Voltage Max | 14 V | 14 V | 14 V |
| Topology | Flyback | Flyback | Flyback |
| Switching Frequency | 90 kHz to 110 kHz | 61 kHz to 73 kHz | 61 kHz to 73 kHz |
| Duty Cycle Max | 83 % | 73 % | 83 % |
| Operating Supply Current | 2.5 mA | 1 mA | 2.5 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 105 C | + 125 C | + 105 C |
| Output Current | 2 A | 1.2 A | 2 A |
| Series | FSL126HR | FSL126MRT | FSL126MR |
| Packaging | Tube | Tube | Tube |
| Isolation | Isolated | Isolated | Isolated |
| Number of Outputs | 1 Output | 1 Output | 1 Output |
| Type | Current Mode | Current Mode | Current Mode |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Product Type | AC/DC Converters | AC/DC Converters | AC/DC Converters |
| Factory Pack Quantity | 3000 | 400 | 3000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.032805 oz | 0.097074 oz | 0.032805 oz |