MF1050 Datasheet, PDF (1/1 Pages) EUROQUARTZ limited – SURFACE-MOUNT CRYSTALS

SURFACE-MOUNT CRYSTALS
MF CRYSTALS
6mm x 3.5mm SMD
DESCRIPTION
MF crystals are ultra-miniature surface-mount mount crystals. Produced
with ceramic substrate and hermetically-sealed metal lid the compact size
and low mass make this an ideal crystal for high-density applications.
OUTLINES AND DIMENSIONS
FEATURES
· Ultra miniature size: 6.0mm x 3.5mm x 1.0mm height
· Gold-plated ceramic base with metal seam-welded lid
· Extremely low ageing
· High shock and vibration resistance
· Ideal for PDAs, GPS, PCMCIA and hand-held equipment
GENERAL SPECIFICATION
Frequency Range
AT-Cut Fundamental:
12MHz to 50.0MHz
AT-Cut 3rd Overtone:
40.0MHz to 100.0MHz
Calibration Tolerance at 25ºC*: ±10ppm, ±20ppm or ±30ppm
Frequency stability over temp**.
Range -20° to +70°C:
±5ppm, ±10ppm or ±30ppm
Range -30° to +85°C:
Storage Temperature:
Shunt Capacitance (C0):
±10ppm
-40°~+85°C
2pF to4pF typical, 5pF maximum
PART NUMBER GENERATION
MF crystal part numbers are derived as follows:
Load Capacitance (CL):
Series or 10pF to 32pF
(Customer specified CL)
Example: 16.000MHz MF/ 10/50/10/30pF/ATF
Ageing:
<±3ppm per year at +25°C
Drive level:
100mW max
Frequency
Reflow Soldering:
10s maximum at 260°C two times
Package - MF
or 180s at 230°C, once.
Calibration Tolerance at 25°C
Holder:
Ceramic base, metal lid,
(in ±ppm)
hermetic seal
Temperature Stability
Packaging:
16mm EIA tape and reel
(in ±ppm)
3000 pieces per reel
Operating Temperature Range
Notes:
(lower figure of
* Calibration Tolerance of ±5ppm at 25°C is available
temperature range)
** Tighter tolerance, and lower ESR parameters are available, check withCircuit Condition
Euroquartz technical sales.
(CL in pF or SERIES)
Mode - ATF (AT-Cut, fund.)
- AT3 (AT-Cut, 3rd overtone)
OSCILLATION MODE & ESR
Frequency
(MHz)
12 ~ 16
16.1 ~ 50
40 ~ 67
67.0 ~ 100
Crystal Cut
Oscillation Mode
AT Fund.
AT Fund.
AT 3rd OT
AT 3rd OT
ESR (max)
(Ohms)
80
40
70
90
STOCKHOLDING AND CUSTOM PARTS
Certain frequencies and specification of MF crystals are stocked by
Euroquartz. Custom frequencies and specifications are readily
manufactured to order on short lead times. Contact Euroquartz sales
office for details.
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] email: [e-mail] web: www.euroquartz.co.uk