| PartNumber | FSA1257AL8X | FSA1256L8X | FSA1256AL8X |
| Description | Analog Switch ICs FINISHED GOOD | Analog Switch ICs Low RON Low Voltage Dual SPST Analog | Analog Switch ICs FINISHED GOOD |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Analog Switch ICs | Analog Switch ICs | Analog Switch ICs |
| RoHS | Y | Y | Y |
| Number of Switches | 2 Switch | 2 Switch | 2 Switch |
| Configuration | 2 x SPST | 2 x SPST | 2 x SPST |
| On Resistance Max | 1.15 Ohms | 1.15 Ohms | 1.15 Ohms |
| Switch Voltage Max | 4.5 V | 4.5 V | 4.5 V |
| On Time Max | 35 ns | 35 ns | 35 ns |
| Off Time Max | 15 ns | 15 ns | 15 ns |
| Operating Supply Voltage | 2.7 V to 5.5 V | 1.65 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | MicroPak-8 | MicroPak-8 | MicroPak-8 |
| Packaging | Reel | Reel | Reel |
| Height | 0.5 mm | 0.5 mm | 0.5 mm |
| Length | 1.6 mm | 1.6 mm | 1.6 mm |
| Series | FSA1257A | FSA1256 | FSA1256A |
| Supply Type | Single Supply | Single Supply | Single Supply |
| Width | 1.6 mm | 1.6 mm | 1.6 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Supply Current Max | 500 nA | 500 nA | 500 nA |
| Pd Power Dissipation | 180 mW | 180 mW | 180 mW |
| Product Type | Analog Switch ICs | Analog Switch ICs | Analog Switch ICs |
| Factory Pack Quantity | 5000 | 5000 | 5000 |
| Subcategory | Switch ICs | Switch ICs | Switch ICs |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 2.7 V | 1.65 V | 2.7 V |
| Switch Continuous Current | 200 mA | 200 mA | 200 mA |
| Part # Aliases | FSA1257AL8X_NL | FSA1256L8X_NL | FSA1256AL8X_NL |
| Unit Weight | 0.000882 oz | 0.000882 oz | 0.000882 oz |