QH40A

2 x Precision crystal heater 40° QH40A

2 pieces QH40A for 29,90 EUR


40,8 °C • +/- 1,5 °C
net: 25,13
29,15
incl. 16% Vat. plus shipping
Available from stock
Temperatur40.8 °C +/- 1.5 °C
Regulation accuracybetter 0.1 °C
Supply voltage+8 ... 12 V DC, use stabilized voltage
Inrush currenttyp. 80 mA
Dimensions (mm)11.5 x 13.8 x 2.4
The precision crystal heater provides temperature stabilisation for crystals.
The circuit, which is built on AL2O3 ceramic substrate, has to be mounted on the 40 °C thermostat crystal. Then, the crystal is heated to 40.8 °C with a regulation accuracy of better than 0.1 °C. This provides high frequency stability.
The precision crystal heater is a in expensive alternative to completely heated oven oscillators (OCXOs). However, the stability values of an OCXO can not be reached.
- Temperature stabilisation of crystals for high frequency stability