This document is about Aker Company's CA4-6.000-18-3050-X quartz crystal unit (HC-49/U-S-SMD - 4 Pad) specification, including frequency, frequency stability, operating temperature range and other information.
The CA4-6.000-18-3050-X quartz crystal unit is supplied in an HC‑49/U S‑SMD 4‑pad package. It operates at a nominal frequency of 6 MHz with a load capacitance of 18 pF and meets RoHS compliance.
Key electrical parameters include a frequency tolerance of +30 ppm, stability of +50 ppm over temperature, and a drive level range of 100 µW typical to 500 µW maximum. The device is rated for an extended operating temperature range of –40 °C to +85 °C and a storage range of –55 °C to +125 °C.
| Nominal Frequency | 6.000 MHz |
|---|---|
| Frequency Tolerance | +30 ppm |
| Frequency Stability | +50 ppm Max |
| Operating Temperature Range | -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) | 80 Ω Max |
| Drive Level | 100 µW typical – 500 µW max |
| Solder Reflow Characteristics | +260 °C for 10 s Max |
The nominal frequency is 6.000 MHz.
It operates from –40 °C to +85 °C (extended range).
The load capacitance is 18 pF.
Yes, the document states it is RoHS compliant.