This is the specification of Aker's Quartz Crystal Unit HC-49/U-S-SMD - 4 Pad product, with model number CA4-14.7456-18-3050-X.
The AKER CA4-14,7456-18-3050-X is a HC‑49/U‑S‑SMD quartz crystal designed for precise frequency control in electronic circuits. It complies with RoHS and is lead‑free, suitable for a wide range of applications requiring stable oscillation.
Key specifications include a nominal frequency of 14.7456 MHz, tight tolerance and stability, extended operating temperature range, and defined load capacitance and drive level. Mechanical dimensions are provided for SMD mounting on a 4‑pad layout.
| Nominal Frequency | 14.7456 MHz |
|---|---|
| Frequency Tolerance at 25°C | +30 ppm |
| Frequency Stability over Temperature | +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) | 50 Ω Max |
| Drive Level | 100 µW Typ – 500 µW Max |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
The nominal frequency is 14.7456 MHz.
It operates from –40 °C to +85 °C (extended range).
The load capacitance is 18 pF.
Yes, it is RoHS compliant and lead‑free.