This document describes the specifications and characteristics of the CAA-4.194304-18-3050-X Quartz Crystal Unit HC-49/U-S-SMD product manufactured by AKER-USA.
The CAA-4.194304-18-3050-X is a quartz crystal unit in an HC-49/U-S-SMD package, designed for precise frequency generation at 4.194304 MHz. It offers a load capacitance of 18 pF and a typical drive level of 100 µW, with a maximum of 500 µW.
The device complies with RoHS (lead‑free) requirements and operates over an extended temperature range of –40 °C to +85 °C. Mechanical dimensions are given in millimetres, and the crystal features a frequency tolerance of +30 ppm at 25 °C and stability of +50 ppm over temperature. Solder reflow can reach up to 260 °C for 10 seconds.
| Nominal Frequency | 4.194304 MHz |
|---|---|
| Frequency Tolerance (25 °C) | +30 ppm |
| Frequency Stability over Temperature | +50 ppm Max |
| Operating Temperature Range | -40 °C to +85 °C |
| Load Capacitance | 18 pF |
| Equivalent Series Resistance (ESR) | 120 Ω Max |
| Drive Level | 100 µW Typ – 500 µW Max |
| Solder Reflow Temperature | 260 °C for 10 s Max |
| Aging per Year | +3 ppm Max |
The nominal frequency is 4.194304 MHz.
It operates from –40 °C to +85 °C.
The load capacitance is 18 pF.
Yes, it is RoHS compliant and lead‑free.