This file is Aker 4.000 MHz Quartz Crystal Unit HC-49/U-Through Hole product specification, which details the product's features and characteristics, including brand, model, frequency, temperature range, load capacitance, etc.
The C-4.000-18-3050-X is a HC‑49/U through‑hole quartz crystal unit offering a nominal frequency of 4.000 MHz. It meets RoHS requirements and is supplied with a load capacitance of 18 pF.
Electrical specifications include a frequency tolerance of +30 ppm at 25 °C, stability of +50 ppm over temperature, and an ESR of 100 Ω max. Mechanical dimensions are given in millimeters, with a maximum height of 4.56 mm, width of 11.05 mm, and length of 10.15 mm.
| Nominal Frequency | 4.000 MHz |
|---|---|
| Frequency Tolerance (25 °C) | +30 ppm |
| Frequency Stability | +50 PPM Max |
| Operating Temperature Range (Extended) | -40 to +85 °C |
| Load Capacitance | 18 pF |
| Equivalent Series Resistance (ESR) | 100 Ohms Max |
| Drive Level | 100 Typ - 500 Max µW |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
| Maximum Height | 4.56 mm |
| Maximum Width | 11.05 mm |
It operates at a nominal frequency of 4.000 MHz.
Yes, the crystal is RoHS compliant.
The extended operating temperature range is –40 °C to +85 °C.