The ATS18A is a 18.432MHz crystal with a fundamental mode of oscillation and a frequency tolerance of ±30 parts per million. It features a series resistance of 40 ohms and a load capacitance of 20 picofarads. The crystal is packaged in a metal can package with a seated plane height of 3.68 millimeters and a pin pitch of 4.88 millimeters. It operates over a temperature range of -20 to 70 degrees Celsius.
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CTS ATS18A technical specifications.
| Package Family Name | HC-49 |
| Package/Case | HC-49/US |
| Package Description | Metal Can Package |
| Pin Count | 2 |
| PCB | 2 |
| Package Length (mm) | 10.85 |
| Package Width (mm) | 4.5 |
| Package Height (mm) | 3.68(Max) |
| Seated Plane Height (mm) | 3.68(Max) |
| Pin Pitch (mm) | 4.88 |
| Package Material | Metal |
| Mounting | Through Hole |
| Type | Crystal |
| Standard Frequency | 18.432MHz |
| Frequency Tolerance | ±30ppm |
| Frequency Stability | ±50ppm |
| Load Capacitance | 20pF |
| Mode of Oscillation | Fundamental |
| Series Resistance | 40Ohm |
| Min Operating Temperature | -20°C |
| Max Operating Temperature | 70°C |
| Cage Code | 58756 |
| EU RoHS | Yes |
| HTS Code | 8541600050 |
| Schedule B | 8541600025 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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