EURO
QUARTZ
Frequency range 1.0MHz to 200MHz
High-precision crystal ideal for telecoms applications
High quality resistance weld sealing
Suitable for reflow soldering
UM-1 and UM-5 Crystals
OUTLINE & DIMENSIONS
DESCRIPTION
Um-1 and UM-5 crystals are a long-established design, being widely
used in telecommunications applications where their compact size
and ease of producing to close tolerances makes them an ideal
crystal. In addition to the standard packages a 'Slimline' package is
also available.
SPECIFICATION
Frequency Range
UM-1
UM-5
Oscillation Mode:
Calibration Tolerance at 25ºC
SL-Cut (<1.3MHz):
AT-Cut (>4.0MHz):
Frequency Tolerance
SL-Cut:
AT-Cut:
Shunt Capacitance (C0):
Load Capacitance (CL):
Ageing:
Drive Level:
Crystal Holder:
Supply format:
1.0MHz to 1.2MHz (SL-Cut)
4.0MHz to 200MHz (AT-Cut)
10MHz to 200MHz (AT-Cut)
See table
from ±50ppm
from ±3ppm
from ±100ppm -10° to +60°C
from ±3ppm 0° to +50°C
4pF typical, 7pF maximum
Series or from 8pF to 32pF
(Customer
specified CL)
±2ppm maximum, 1st year,
±1ppm per year thereafter.
100 Watts typ., 500 Watts max.
Resistance-weld hermetic seal
Bulk pack
PART NUMBER GENERATION
Part numbers for UM-1 crystals are generated as follows:
Example:
A three lead (centre earth lead) package is
available with the designation UM-1-3L
16.00MHz UM-1/20/30/-10+60/18pF/60R
Nominal Frequency
Package
UM-1 or UM-5
Calibration tolerance
at 25°C (±ppm)
Temperature Stability
over temp. range (±ppm)
Operating Temp. Range (°C)
(Lower and upper limits)
Load Capacitance
(SR for series or CL in pF)
Equivalent Series Resistance
(Optional - use when special
value is required)
ESR and OSCILLATION MODE
Frequency
Range MHz
1.0 ~1.2
4.0 ~ 4.9
5.0 ~ 5.9
6.0 ~ 6.9
7.0 ~ 7.9
8.0 ~ 8.9
9.0 ~ 10.9
11.0 ~ 12.9
13.0 ~ 45.0
50.1 ~ 100.0
80.0 ~ 200.0
Crystal Cut
ESR
Osc. Mode Ohms Max.
SL Fund.
AT Fund.
AT Fund.
AT Fund.
AT Fund.
AT Fund.
AT Fund.
AT Fund.
AT Fund.
AT 3rd o.
AT 5th o.
5k
150
120
100
90
80
60
40
25
40
80
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 sales@euroquartz.co.uk
www.euroquartz.co.uk
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