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| PartNumber | FSA1257AL8X | FSA1257L8X | FSA1257L8X.. |
| Description | Analog Switch ICs FINISHED GOOD | Analog Switch ICs Low RON Low Voltage Dual SPST Analog | |
| Manufacturer | ON Semiconductor | ON Semiconductor | - |
| Product Category | Analog Switch ICs | Analog Switch ICs | - |
| RoHS | Y | Y | - |
| Number of Switches | 2 Switch | 2 Switch | - |
| Configuration | 2 x SPST | 2 x SPST | - |
| On Resistance Max | 1.15 Ohms | 1.15 Ohms | - |
| Switch Voltage Max | 4.5 V | 4.5 V | - |
| On Time Max | 35 ns | 35 ns | - |
| Off Time Max | 15 ns | 15 ns | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 1.65 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | MicroPak-8 | MicroPak-8 | - |
| Packaging | Reel | Reel | - |
| Height | 0.5 mm | 0.5 mm | - |
| Length | 1.6 mm | 1.6 mm | - |
| Series | FSA1257A | FSA1257 | - |
| Supply Type | Single Supply | Single Supply | - |
| Width | 1.6 mm | 1.6 mm | - |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | - |
| Supply Current Max | 500 nA | 500 nA | - |
| Pd Power Dissipation | 180 mW | 180 mW | - |
| Product Type | Analog Switch ICs | Analog Switch ICs | - |
| Factory Pack Quantity | 5000 | 5000 | - |
| Subcategory | Switch ICs | Switch ICs | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 1.65 V | - |
| Switch Continuous Current | 200 mA | 200 mA | - |
| Part # Aliases | FSA1257AL8X_NL | FSA1257L8X_NL | - |
| Unit Weight | 0.000882 oz | 0.000882 oz | - |