The CA-20.000-18-3050-X is a quartz crystal unit produced by AKER. The frequency is 20.000 MHz and the frequency stability is ±30 PPM.
The CA-20.000-18-3050-X is a through‑hole quartz crystal unit (HC‑49/U‑S) designed for precise frequency applications. It operates at a nominal frequency of 20.000 MHz with a tolerance of +30 ppm at 25 °C and a stability of +50 ppm over temperature.
The device complies with RoHS requirements, is lead‑free, and is rated for an extended operating temperature range of –40 °C to +85 °C (storage –55 °C to +125 °C). Mechanical dimensions are specified in millimeters, and the part is listed under AKER’s product catalog.
| Nominal Frequency | 20.000 MHz |
|---|---|
| Frequency Tolerance at 25 °C | +30 ppm |
| Frequency Stability over Temperature Range | +50 ppm Max |
| Operating Temperature Range (Extended) | -40 °C to +85 °C |
| Storage Temperature Range | -55 °C to +125 °C |
| 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 µW Typ – 500 µW Max |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
The nominal frequency is 20.000 MHz.
It operates from –40 °C to +85 °C (extended range).
The load capacitance is 18 pF.
Yes, the crystal is RoHS compliant and lead‑free.