Oven controlled crystal oscillator (OCXO) for space applications
TE 420 TE 425 10-9 Rakon

OCXO Space Plus TE 420 and TE425 are designed for Space Clocks, Navigation and Positioning Systems. Their stability class is 10-9 and frequency Range : 10 MHz to 40 MHz.

They are used in such applications as GPS receivers, digital cards, board calculators, down and up converters,synthesizers.
OCXOs Space Plus TE 420 (50x55x30mm) and Space Plus TE 425 (50x50x30mm) are manufactured in accordance with MIL-PRF-55310 (Class 1, type 4, type 6, level S).

TE 420 is featured by remarkable overall frequency stability vs. temperature range up to +/-0.5ppb under vacuum, +/- 20 ppb per year, power consumption at steady state of 3W under vacuum, and weight of 130g.
Features TE 420 :
· Steady state Consumption : 3W under vacuum and 4W under atmospheric pressure
· Frequency Stability vs. Operating Temperature
Range: +/-- 0.5ppb under vacuum
· Ageing :+/- 0.15 ppm over 15 years typical at
10MHz
· Output Wave Form : sine 50 Ohms
· Output Level : from 0 to 10 dBm
· Component selected as per ECSS-Q-ST-60C
· Materials selected as per ECSS-Q-70

TE 425 is featured by remarkable overall frequency stability vs. temperature range up to +/-0.5ppb under vacuum, +/- 20 ppb per year, power consumption at steady state of 2W under vacuum, and weight
of 120g.
Features TE 425
· Steady state Consumption : 2W under vacuum and 4W under atmospheric
pressure
· Frequency Stability vs. Operating Temperature Range: +/- 1ppb under
vacuum
· Ageing :+/- 0.2 ppm over 15 years typical at 10MHz