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| PartNumber | 550QJ921M500DGR | 550QJ921M500DG | 550QK400M000DG |
| Description | VCXO Oscillators Differential/single-ended single frequency VCXO; 10-1417 MHz | VCXO Oscillators Differential/single-ended single frequency VCXO; 10-1417 MHz | XTAL OSC VCXO 400.0000MHZ CML |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | VCXO Oscillators | VCXO Oscillators | - |
| Package / Case | 5 mm x 7 mm | 5 mm x 7 mm | - |
| Frequency | 921.5 MHz | 921.5 MHz | - |
| Frequency Stability | 20 PPM | 20 PPM | - |
| Load Capacitance | 15 pF | 15 pF | - |
| Operating Supply Voltage | 3.3 V | 3.3 V | - |
| Supply Voltage Min | 2.97 V | 2.97 V | - |
| Supply Voltage Max | 3.63 V | 3.63 V | - |
| Output Format | CML | CML | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Length | 7 mm | 7 mm | - |
| Height | 1.65 mm | 1.65 mm | - |
| Width | 5 mm | 5 mm | - |
| Series | Si550 | Si550 | - |
| Packaging | Reel | - | - |
| Current Rating | 108 mA | 108 mA | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Duty Cycle Max | 55 % | 55 % | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Product Type | VCXO Oscillators | VCXO Oscillators | - |
| Subcategory | Oscillators | Oscillators | - |
| RoHS | - | Y | - |
| Factory Pack Quantity | - | 50 | - |
| Unit Weight | - | 0.006562 oz | - |