This document is about the product specification of the Quartz Crystal Unit HC-49/U-S-SMD model produced by AKER company. It has a nominal frequency of 10.000 MHz, fundamental oscillation mode, frequency tolerance of ±30 PPM at 25°C, frequency stability of ±50 PPM over temperature range, operating temperature range of -40 to +85 º C, storage temperature range of -55 to +125 º C, aging rate of ±3 PPM Max per year, load capacitance of 18 pF, and maximum equivalent series resistance (ESR) of 50 ohms.
This document describes the AKER quartz crystal unit model CAA-10.000-18-3050-X, intended for use in frequency‑control applications. It lists the key electrical parameters such as nominal frequency, tolerance, stability, and drive level.
The sheet also includes mechanical dimensions, temperature ranges, and solder reflow characteristics, giving designers the data needed for proper integration of the crystal into their circuits.
| 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 |
| Load Capacitance | 18 |
| Equivalent Series Resistance (ESR) | 50 Ohms Max |
| Drive Level | 100 Typ - 500 Max µW |
| Solder Reflow Characteristics | +260 for 10 s Max °C |
The nominal frequency is 10.000 MHz.
It operates from –40 °C to +85 °C (extended range).
The ESR is specified as up to 50 Ω.
The drive level is typical 100 µW up to a maximum of 500 µW.