On Tue, Feb 21, 2012 at 9:19 PM, Ken Kubick <[email protected]> wrote: > > I just baught two FE-5680A Rubidium Frequency Standards. Both units seem to > work just fine. The units I recieved are mounted to a PCB. They both run > real hot around 58 Deg. C. Should I put them on heatsinks? or is this > normal? The data sheet says the temperature range is -5 to +50 deg. C. I > don't want to put a heatsink on them if there is a heater inside that trys to > keep them hot at 58 deg. C.
If it has a Rubidium physics package inside then there is a heater that tries to keep it just over 100C. The gas cell has to be hot to work. If you use a heat sink, yes the heater has to work but if you cool if the electronic the unit will last longer. That circuit board served as the heat sink but there was a fan. My FE5680 is screwed to a heat sink and inside an enclosure that used to hold disk drives. there is a temperature control fan and I hope this will stabilize the temperature inside the box, still have to tube this. I'm using a heat sink so that I can use a smaller fan. Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
