OCXO - 36.1 x 27.2 x 13.0mm


Bomar Crystal is able to offer a full line of ultra low tolerance thru hole Oven Controlled Crystal Oscillators. OCXOs are used for applications where frequency tolerance and stability are critical like radar systems, sonet clocks, synthesizers, test and measurement instrumentation, GPS tracking and cellular base stations. Frequency stability to ±2ppb with low phase noise is available.


  • Frequency stability to ±2ppb
  • Frequency range from 2.000 MHz to 100.000 MHz
  • High precision and high reliability
  • Extended temperature of -40o to +75oC. available
  • Available in 3.3Vdc, 5.0Vdc or 12.0Vdc
  • HCMOS or Sine Wave available
  • AT or SC cut 
  • All Products meet the European Union Initiative (RoHS) for Lead (Pb) free content and requirements for re-flow profiling using lead-free solder.

Standard Specifications

Output Wave Form  HCMOS or Sine Wave 
Frequency Range  2.000 MHz - 100.000 MHz
Standard Frequencies (partial list)  10.000, 12.800, 13.000, 26.000, 38.880, 100.000 MHz
Type of Crystal Cut  AT-cut or SC-cut
Supply Voltage  3.3 Vdc, 5.0 Vdc or 12.0V
Power Consumption 4.0W max. - warm up              1.2W max. - steady state
Initial Frequency Accuracy (at +25oC)  ±0.2ppm with EFC set at center of control voltage 
Frequency Stability      vs Operating Temperature Range (referenced to +25oC.) ±50ppb(AT) or ±2ppb(SC) over 0oC. to +50oC.
±75ppb(AT) or ±10ppb(SC) over -20oC. to +70oC.
±100ppb(AT) or ±10ppb(SC) over -40oC. to +75oC.
Custom spec. on request
vs Aging / 1 day ±2ppb max.(AT) or ±1ppb max.(SC)
vs Aging / first year ±200ppb max.(AT) or ±100ppb max.(SC)
vs Aging / 10 years ±2.0ppm max.(AT) or ±0.5ppm max.(SC) 
vs 5% Supply Voltage Change ±10ppb max.(AT) or ±1ppb max.(SC)
vs 5% Load Change  ±10ppb(AT) max. or ±1ppb max.(SC)  
Electronic Frequency Control
Pin 3   
Tuning Range ±3ppm min.(AT) or ±0.7ppm min.(SC)
Control Voltage Range 3.3V(0-3.3V), 5.0V & 12.0V(0-5.0V) 
Linearity ±10% 
Transfer Function Positive 
Warm up time (at +25oC.)   ±200ppb, 3 min. max.(AT) or ±100ppb, 3 min. max.(SC) 
CMOS Square Wave      VOH:Logic High   "1"   90% Vdd min.
VOL:Logic Low    "0"  10% Vdd max. 
Duty Cycle 45% to 55%  
Rise Time and Fall Time 6nS max.
Load 15 pF, 50pF max.
Sine Wave  Output 5dBm min.
Load 50 ohms
Phase Noise 
10Hz -120dBc/Hz
100Hz -140dBc/Hz
1kHz -145dBc/Hz
10kHz -150dBc/Hz


36.1 x 27.2 ocxo

Contact Us

Bomar Crystal Company
117 William Street
PO Box 10
Middlesex, NJ 08846

+ 1 (732) 356-7787
+ 1 (800) 526-3935
FAX: + 1 (732) 356-7362
FAX: + 1 (800) 777-2197