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| PartNumber | ECS-180-18-4XEN | ECS-18-S-1 | ECS-18-S-1X |
| Description | Crystals 18MHz 18pF 50ppm -40C +85C | Crystals 1.8432MHz SERIES | Crystals 1.8432MHz SERIES |
| Manufacturer | ECS | ECS | ECS |
| Product Category | Crystals | Crystals | Crystals |
| RoHS | Y | N | Y |
| Termination Style | Radial | Radial | Radial |
| Package / Case | HC-49/USX | - | HC-49 |
| Load Capacitance | 18 pF | Series | Series |
| Frequency | 18 MHz | 1.8432 MHz | 1.8432 MHz |
| Tolerance | 30 PPM | 30 PPM | 30 PPM |
| Frequency Stability | 50 PPM | 50 PPM | 50 PPM |
| ESR | 40 Ohms | 750 Ohms | 750 Ohms |
| Drive Level | 500 uW | 2 mW | 1 mW |
| Minimum Operating Temperature | - 40 C | - 10 C | - 10 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 70 C |
| Length | 11.35 mm | 11.35 mm | 11.35 mm |
| Width | 4.65 mm | 4.65 mm | 4.65 mm |
| Height | 3.5 mm | 13.46 mm | 13.46 mm |
| Series | HCS-49USX | HC49U | HC49UX |
| Packaging | Bulk | - | Bulk |
| Brand | ECS | ECS | ECS |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Product Type | Crystals | Crystals | Crystals |
| Subcategory | Crystals | Crystals | Crystals |
| Product | - | Crystals | - |
| Type | - | Quartz Crystal | Quartz Crystal |
| Lead Spacing | - | 4.88 mm | - |
| Factory Pack Quantity | - | 100 | 100 |
| Unit Weight | - | - | 0.034000 oz |