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UM-1 Crystal

BC21 - 8 x 7.8 x 3.25mm

The UM-1 Crystal is a miniature AT-cut thru hole type crystal, designed for use in applications where space is limited. The UM-1 offers tolerance and stability to ±5ppm and a temperature range to -40o to +85oC.  The UM-1 is available with an optional gullwing design and mounting clip for SMD applications.  Available in fundamental, third overtone, fifth overtone or seventh overtone.

Features

  • Very compact and thin (8.0 x 7.8 x 3.25mm)
  • Frequency range from 6.000 MHz to 200.000 MHz
  • Perfect for Mobile Communication and Radio Applications
  • High precision and high reliability
  • All Products meet the European Union Initiative (RoHS) for Lead (Pb) free content and requirements for re-flow profiling using lead-free solder.





Specifications

Frequency Range 6.000 - 200.000 MHz
Frequency Tolerance at 25ºC. ±30ppm - Standard
±5ppm to ±100ppm - Available
Temperature Range
(Operating)		 -20o to +70oC. - Standard
-40o to +85oC. - Available
Frequency Stability ±50ppm - Standard
±5ppm to ±100ppm - Available
Load Capacitance 10pF to 100pF or Series Resonant
Shunt Capacitance 7pF max.
Resistance See Below
Aging ±3ppm/1st year max.
Drive Level 1mW max.

Contact Us




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


sales@bomarcrystal.com
+ 1 (732) 356-7787

UM-1

 

UM-1 crystal

Equivalent Series Resistance (ESR) ohms max.

Frequency Mode ESR(ohms)max.
6.000-9.999 Fundamental 80
10.000-15.999 Fundamental 60
16.000-60.000 Fundamental 40
25.000-100.000 Third Overtone 60
80.000-155.000  Fifth Overtone   80
120.000-200.000  Seventh Overtone   120