This document is about the specification of CAA-3.6864-18-3050-X Quartz Crystal Unit HC-49/U-S-SMD, including the frequency, temperature range, stability and so on.
This one‑page datasheet provides the electrical and mechanical specifications for the AKER quartz crystal unit identified as part number CAA-3.6864-18-3050-X (HC-49/U‑S‑SMD). It is intended for designers who need precise frequency and stability data for circuit integration.
Key electrical parameters include a nominal frequency of 3.6864 MHz, frequency tolerance of +30 ppm at 25 °C, and a stability of +50 ppm over temperature. Mechanical dimensions and temperature limits are also listed, ensuring proper handling and mounting in the intended application.
| Nominal Frequency | 3.6864 MHz |
|---|---|
| Frequency Tolerance at 25 °C | +30 ppm |
| Frequency Stability over Temperature Range | +50 ppm Max |
| Operating Temperature Range (Extended) | -40 to +85 °C |
| Storage Temperature Range | -55 to +125 °C |
| Aging per Year | +3 ppm Max |
| Load Capacitance | 18 pF |
| Shunt Capacitance (Maximum) | 7 pF |
| Equivalent Series Resistance (ESR) | 200 Ω Max |
| Drive Level | 100 µW Typ – 500 µW Max |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
The nominal frequency is 3.6864 MHz.
It operates from –40 °C to +85 °C (extended range).
The load capacitance is 18 pF.