The document is about the product specification of a 5 x 3.2 mm SMD Quartz Crystal Unit. It is a RoHS compliant, lead-free product with an operating temperature range of -40 to +85 degrees Celsius. The crystal unit has a nominal frequency of 20.0000 MHz, fundamental oscillation mode, and a frequency tolerance of ±30 PPM.
The AKER C5S-20.000-12-3030-X is a surface‑mount quartz crystal unit sized 5 mm × 3.2 mm. It operates at a nominal frequency of 20 MHz and complies with RoHS requirements. The part is supplied with a 12 pF load capacitance and is suitable for a wide temperature range.
The sheet lists electrical parameters such as frequency tolerance (+30 ppm at 25 °C), stability (+30 ppm over temperature), ESR (≤50 Ω), and drive level (100 µW typical, up to 500 µW). Mechanical data include overall dimensions, recommended land pattern, and solder reflow limits. This information assists designers in selecting and integrating the crystal into their circuits.
| Nominal Frequency | 20.0000 MHz |
|---|---|
| Mode of Oscillation | Fundamental |
| Frequency Tolerance (25 °C) | +30 ppm |
| Frequency Stability over Temperature | +30 ppm Max |
| Operating Temperature Range | -40 to +85 °C |
| Storage Temperature Range | -55 to +125 °C |
| Aging per Year | +3 ppm Max |
| Load Capacitance | 12 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 20.0000 MHz.
It requires a load capacitance of 12 pF.
The crystal operates from –40 °C to +85 °C.
The equivalent series resistance is limited to 50 Ω maximum.