This document is about CA4-16.384-18-3050-X Quartz Crystal Unit HC-49/U-S-SMD - 4 Pad product's specification, including product frequency, temperature range, load capacitance and other parameters.
The CA4-16.384-18-3050-X is a HC‑49/U‑S‑SMD quartz crystal unit designed for precise frequency applications. It complies with RoHS and lead‑free requirements and is supplied by AKER.
Key electrical parameters include a nominal frequency of 16.384 MHz, tight tolerance and stability, and defined load capacitance and ESR. Mechanical dimensions and reflow characteristics are also specified for reliable assembly.
| Nominal Frequency | 16.384 MHz |
|---|---|
| Frequency Tolerance at 25°C | +30 ppm |
| Frequency Stability over Temperature Range | +50 ppm Max |
| Operating Temperature Range (Extended) | -40 to +85 °C |
| Storage Temperature Range | -55 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 |
| Maximum Height | 13.0 mm |
The crystal’s nominal frequency is 16.384 MHz.
It operates from –40 °C to +85 °C (extended range).
The specified load capacitance is 18 pF.
Yes, the crystal is RoHS compliant and lead‑free.