I had asked Phil at SSNTRAN about how it should handle heat, since I now live at the focal point of the cosmos' magnifying glass. (AKA: Tucson)
On 4/18/06, email@example.com wrote:
The crystal is rated to be within .002% of frequency over the temp range of -20C to 70C (-4F to 158F). The spec sheet doesn't say what happens outside this operating range. Storage temperature limits are -40C to 85C (-40F to 185F) which are the absolute safe limits before damage would occur over time.
Good question. There really aren't any components that will be affected by temperature extremes that are likely to be experienced in the US. The only possible concern is the frequency accuracy at very low or very high temps. I will look at the crystal spec tonight and give you an estimate of usable limits.