This is a specification sheet for CA4-11.0592-18-3050-X Quartz Crystal Unit HC-49/U-S-SMD - 4 Pad, which is manufactured by Aker-USA. This product is RoHS compliant and lead-free.
The AKER HC-49/U-S-SMD is a 4‑pad quartz crystal unit designed for high‑frequency applications. It complies with RoHS requirements and is supplied as a lead‑free component.
Key electrical parameters include a nominal frequency of 20 MHz, a load capacitance of 18 pF, and an ESR of up to 40 Ω. The device operates from –40 °C to +85 °C (extended) and features a frequency stability of ±50 ppm over temperature.
| Nominal Frequency | 20.000 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 pF |
| Shunt Capacitance (Maximum) | 7 pF |
| Equivalent Series Resistance (ESR) | 40 Ω Max |
| Drive Level | 100 Typ – 500 Max µW |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
The nominal frequency is 20.000 MHz.
It requires a load capacitance of 18 pF.
The ESR is limited to 40 Ω maximum.
It operates from –40 °C to +85 °C (extended range).