| MC-406 | MC-306 | MC-306 | | | Nominal frequency range | 32.768kHz | 32.768kHz | 60.000kHz | | | Tolerance | ±20ppm | ±20ppm | ±100ppm | | | Drive level | 1.0µW max. | 1.0µW max. | 1.0µW max. | | | Load capacitance | 12.5pF | 12.5pF | 12.5pF | | | ESR max. | 35kΩ | 35kΩ | 20kΩ | | | Aging max. | ±3ppm/year | ±3ppm/year | ±5ppm/year | | | Operating temperature | –40°C to +85°C | –40°C to +85°C | –40°C to +85°C | | | Storage temperature | –50°C to +125°C | –50°C to +125°C | –50°C to +125°C | | |
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