4.2 X 11.05 X 4.65mm
The HC49/SMD Crystal is a low profile surface mount crystal with an AT-Strip crystal blank. Used in all Microprocessor, Computer and Computer peripheral applications. The HC49/SMD offers tolerance and stability to 10PPM and temperature ranges to 40+85C and small height of 4.2 or 3.2mm optional. The HC49/SMD is available in Fundamental, 3rd and 5th Overtones.
Features
- Frequency range of 3.0MHz to 75MHz
- High Precision and High Reliability
- Microprocessor, Computer and Computer peripheral applications
- All Products meet the European Union Initiative (RoHS) for Lead (Pb) free content and requirements for re-flow profiling using lead-free solder.
Specifications
| Frequency Range | 3.500 - 75.000 MHz |
| Frequency Tol. at 25ºC | 30 PPM - Standard 10PPM to 100PPM |
| Temperature Range (Operating) |
-20 to +70 C. - Standard |
| Frequency Stability | 10PPM to 100PPM |
| Load Capacitance | 10pF to 100pF or Series Resonant |
| Shunt Capacitance | 7pF Max. |
| Resistance | See Below |
| Aging | + - 5PPM/year Max. |
| Drive Level | 1.0mW Max |
| HC - 49/S | HC - 49/SMD | ||||||||||||||
| inches / mm | |||||||||||||||
![]() |
![]() |
||||||||||||||
|
|
||||||||||||||
Equivalent Series Resistance (ESR)
| Frequency MHz | Mode | HC-49/S HC-49/SMD |
| 3.500-4.099 | Fundamental | 150 Ohms |
| 4.100-4.799 | Fundamental | 120 |
| 4.800-5.799 | Fundamental | 100 |
| 5.800-11.999 | Fundamental | 90 |
| 12.000-14.299 | Fundamental | 70 |
| 14.300-24.000 | Fundamental | 50 |
| 24.100-48.000 | Third Overtone | 80 |
| 48.100-75.000 | Third Overtone | 60 |


