HC-49 Unit
*Package: 11.5x4.5mm
*2P plug-in metal package
*Wide frequency range
*Operating temperature: -40~+85℃
| Item / Type | HC-49US |
| Nominal Frequency Range | 3.2768 to 64 MHz |
| Dimensions | 11.5 x 4.5 x 3.68 mm |
| Vibration Mode | AT Fundamental |
| Load Capacitance | 12pF, 20pF, or specify |
| Frequency Tolerance (at 25 ℃) | ±10 ppm, ± 20 ppm, or specify |
| Frequency Versus Temperature Characteristics | ± 20 ppm, or specify |
| Operating Temperature | - 20 to + 70 ℃ , - 40 to + 85 ℃, or specify |
| Storage Temperature | -40 to +85 ℃, or specify |
| Shunt Capacitance | 7 pF Max. |
| Level of Drive | 1 to 500 μW (100μW typical) |
| Frequency Aging (at 25 ℃) | ± 3 ppm / year Max. |
| Quartz Crystal Resonator |
Dimensions | Frequency (Hz) |
Load Capacitance (pF) |
Freq Stability (ppm) |
Pin | Material | Operating Temp |
| X | 49SD | 12M | S | D | 2 | S | C |
| Fundamental | |||
| 3.2768 to 4 MHz | 180 Ω Max. | 4 to 5 MHz | 120 Ω Max. |
| 5 to 6 MHz | 100 Ω Max. | 6 to 7 MHz | 80 Ω Max. |
| 7 to 10 MHz | 60 Ω Max. | 10 to 27 MHz | 40 Ω Max. |
| 3rd Overtone | |||
| 20 to 25 MHz | 100 Ω Max. | 25 to 64 MHz | 80 Ω Max. |

Frequency : 3.2768MHz-64MHz
Dimension : 11.5 x 4.5 x 3.68 mm
Load Capacitance : 12pF, 20pF, or specify
Operating Temp :
Frequency Tolerance : ±10ppm ±20ppm