The document provides electrical and mechanical specifications for the HC-49/U-Through Hole Quartz Crystal Unit. It is RoHS compliant and lead-free. The unit has a nominal frequency of 10.000 MHz and operates in fundamental mode of oscillation. The frequency tolerance at 25°C is ±30 PPM, and the frequency stability over temperature range is ±50. The operating temperature range is -40 to +85 º C, and the storage temperature range is -55 to +125. The unit has an aging rate of ±3 PPM per year, a load capacitance of 18 pF, maximum shunt capacitance of 7, and maximum equivalent series resistance of 35 Ohms. The drive level is 100 Typ - 500 Max uW, and it can withstand solder reflow at a maximum temperature of +260°C for 10 seconds. The document is dated January 18, 2008.
The AKER C-10.000-18-3050-X is a HC-49/U through‑hole quartz crystal unit. It is RoHS compliant and lead‑free, intended for use in precision timing applications.
Key specifications include a nominal frequency of 10.000 MHz, load capacitance of 18 pF, ESR up to 35 Ω, and an extended operating temperature range of –40 °C to +85 °C. Mechanical dimensions are provided in millimeters, with a maximum height of 4.56 mm.
| Nominal Frequency | 10.000 MHz |
|---|---|
| Frequency Tolerance at 25°C | +30 |
| Frequency Stability over Temperature Range | +50 PPM Max |
| Operating Temperature Range (Extended) | -40 to +85 °C |
| Storage Temperature Range | -55 to +125 |
| Aging per Year | +3 PPM Max |
| Load Capacitance | 18 |
| Shunt Capacitance (Maximum) | 7 pF |
| Equivalent Series Resistance (ESR) | 35 Ohms Max |
| Drive Level | 100 Typ - 500 Max uW |
| Solder Reflow Characteristics | +260 for 10 s Max °C |
| Maximum Height | 4.56 mm |
The nominal frequency is 10.000 MHz.
It operates from –40 °C to +85 °C (extended range).
The load capacitance is 18 pF.
The ESR is limited to 35 Ω max.