Datasheet:

SMD crystal series in metal package HC-49/US-SMD

The SMD crystal in a metal package, the HC-49/US-SMD series, is the lowest cost SMD package available. It is available in 3 package heights with a frequency range from 3.5 to 80.0MHz and an extended temperature range of up to –40°C +125°C.
 

A frequency tolerance of +-5ppm at 25°C and a frequency stability +-3ppm over -10°C to +55°C are possible. Ageing is at a maximum after the first year and then it reduces successively (Exponential Function). The standard ageing is +-2ppm maximum after the first year.

If required, an ageing of +-1ppm maximum after the first year is available.
It is also possible to deliver crystals with very tight parameters including ageing over 10 years.

The layout of the SMD crystal HC-49/US-SMD is the same as that of the competition. This compatibility makes the HC-49/US-SMD a direct drop in replacement.

The SMD crystal HC-49/US-SMD can be used for all applications where a miniaturised low cost and high performance crystal clock generator is required.

Our crystals in the HC-49/US-SMD series are manufactured exclusively in clean rooms and we only use crystal blanks that come from our own production. In this way the HC-49/US-SMD series offers its users the absolute best possible quality. If needed, this crystal can also be qualified to the automotive norm, AECQ200REV.C.

The extensive depth of manufacturing processes enables us to achieve excellent yields. In this way we can offer low prices together with exceptional quality. This is of course also true for customer specials.

The HC-49/US-SMD crystals are lead (Pb) free and are RoHS (Restriction of the use of certain hazardous substances in electrical and electronic equipment) conform according to the EU directive 2002/95/EG. Our products can be soldered according to JEDEC Norm J-STD-020C (Reflow), JESD22-B106-C (Wave) and the IEC60068-2-20 Norm. If you need other soldering processes please let us test them for you.