OCXO - 38.0 x 38.0 x 19.0mm


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 instruments, GPS tracking and cellular base stations. Frequency stability to ±5ppb with low phase noise is available.


  • Frequency stability to ±5ppb
  • Frequency range from 10.000 MHz to 200.000 MHz
  • High precision and high reliability
  • Extended temperature of -40o to +85oC. available
  • Available in 12.0Vdc or 15.0Vdc
  • 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  10.000 - 200.000MHz(AT)    10.000 - 120.000MHz(SC)
Type of Crystal Cut  AT-cut or SC-cut
Supply Voltage  12.0Vdc or 15.0Vdc
Power Consumption 5.0W max. - warm up           2.0W 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 ±5ppb(SC) over 0oC. to +50oC.
±100ppb(AT) or ±10ppb(SC) over -20oC. to +70oC.
±500ppb(AT) or ±50ppb(SC) over -40oC. to +85oC.
Custom spec. on request
vs Aging / 1 day ±10ppb max.(AT) or ±5ppb max.(SC)
vs Aging / first year ±500ppb max.(AT) or ±200ppb max.(SC)
vs Aging / 10 years ±2.0ppm max.(AT) or ±0.5ppm max.(SC) 
vs 5% Supply Voltage Change ±10ppb max. 
vs 5% Load Change  ±10ppb max. 
Electronic Frequency Control
Pin 1
(resistance adj. also available)  
Tuning Range ±2ppm min.(AT) or ±0.7ppm min.(SC)
Control Voltage Range 12.0V & 15.0V(0-5.0V) 
Linearity ±10% 
Transfer Function Positive 
Warm up time (at +25oC.)   ±400ppb, 3 min. max.(AT) or ±200ppb, 3 min. max.(SC) 
HCMOS 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
Sine Wave  Output 7dBm min.
Load 50 ohms
Phase Noise 
10Hz -80dBc/Hz
100Hz -115dBc/Hz
1kHz -140dBc/Hz
10kHz -145dBc/Hz


38.0 x 38.0 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