| PartNumber | ECS-73-S-4 | ECS-73-S-4X | ECS-73-S-1X |
| Description | Crystals 7.3728MHz SERIES | Crystals 7.3728MHz SERIES | Crystals 7.3728MHz SERIES |
| Manufacturer | ECS | ECS | ECS |
| Product Category | Crystals | Crystals | Crystals |
| RoHS | N | Y | Y |
| Termination Style | Radial | Radial | Radial |
| Load Capacitance | Series | Series | Series |
| Frequency | 7.3728 MHz | 7.3728 MHz | 7.3728 MHz |
| Tolerance | 30 PPM | 30 PPM | 30 PPM |
| Frequency Stability | 50 PPM | 50 PPM | 50 PPM |
| ESR | 80 Ohms | - | - |
| Drive Level | 500 uW | - | - |
| Minimum Operating Temperature | - 10 C | - 10 C | - 10 C |
| Maximum Operating Temperature | + 70 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 | 3.5 mm | 13.46 mm |
| Series | HC-49US | HCS-49USX | HC49UX |
| Product | Crystals | - | - |
| Type | Quartz Crystal | Quartz Crystal | Quartz Crystal |
| Brand | ECS | ECS | ECS |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Lead Spacing | 4.88 mm | - | - |
| Product Type | Crystals | Crystals | Crystals |
| Factory Pack Quantity | 100 | 200 | 100 |
| Subcategory | Crystals | Crystals | Crystals |
| Package / Case | - | HC-49/US | HC-49 |
| Packaging | - | Bulk | Bulk |
| Unit Weight | - | 0.019667 oz | 0.034000 oz |