HC51/U Crystal

HC51/U crystals are available from 100kHz to 10MHz. A very rugged crystal used in applications where there are higher vibrations: Aeronautical Instruments, Security and Test Equipment.

BC11 - 19.56 x 18.85 x 8.59mm Features
  • Frequency range of 100kHz to 10MHz
  • High Precision and High Reliability
  • Avionics, Security, Microprocessor, Computer and Computer peripheral applications
  • All Products meet the European Union Initiative (RoHS) for Lead (Pb) free content and requirements for re-flow profiling using lead-free solder.



Frequency Range 100kHz - 10.000 MHz
Frequency Tolerance at 25ºC. ±30ppm - Standard
Temperature Range (Operating) -20o to +70oC. - Standard
Frequency Stability ±50ppm - Standard
Load Capacitance 10pF to 100pF or Series Resonant
Shunt Capacitance 7pF max.
Resistance See Below
Aging ±3ppm/1st year max.
Drive Level 1.0mW max.


Contact Us

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

+ 1 (732) 356-7787


inches / mm

HC51/U crystal

Equivalent Series Resistance (ESR)

Frequency Mode HC51/U (Ohms)
100.00-999.00 kHz Fundamental 1500-2000
1.000-1.499 MHz Fundamental   500
1.500-1.999 MHz Fundamental   400
2.000-2.999 MHz Fundamental   300
3.000-3.999 MHz Fundamental   150
4.000-5.999 MHz Fundamental   75
6.000-10.000 MHz Fundamental   60