This document is a product specification for a HC-49/U-S quartz crystal unit produced by Aker. The crystal unit has a nominal frequency of 32.000 MHz and operates in the fundamental mode of oscillation. It provides good frequency stability and temperature range. The crystal unit is RoHS compliant and lead-free. The document provides detailed information on the electrical and mechanical specifications.
The AKER CA-32.000-18-3050-X is a through‑hole quartz crystal unit (HC‑49/U‑S) designed for precise frequency applications. It complies with RoHS requirements and is lead‑free.
Key specifications include a nominal frequency of 32 MHz, load capacitance of 18 pF, ESR up to 40 Ω, and an operating temperature range from –40 °C to +85 °C. Mechanical dimensions are listed with a maximum height of 11.35 mm.
| Nominal Frequency | 32.000 MHz |
|---|---|
| Frequency Tolerance at 25°C | +30 |
| Frequency Stability over Temperature Range | +50 PPM Max |
| Operating Temperature Range (Extended) | -40 to +85 °C |
| Storage Temperature Range | -55 to +125 |
| Aging per Year | +3 PPM Max |
| Load Capacitance | 18 |
| Shunt Capacitance (Maximum) | 7 pF |
| Equivalent Series Resistance (ESR) | 40 Ω Max |
| Drive Level | 100 Typ - 500 Max µW |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
| Maximum Height | 11.35 mm |
The nominal frequency is 32.000 MHz.
It operates from –40 °C to +85 °C (extended range).
Yes, the crystal is RoHS compliant.