EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001

info@euroquartz.co.uk

www.euroquartz.co.uk

DESCRIPTION

Miniature surface mount MF crystals incorporate a ceramic substrate

and hermetically-sealed metal lid. The combination of compact size

and low mass with a high-specification crystal make MF crystals ideal

for high density applications as well as hand-held and

communications equipment.

Miniature size: 6.0mm x 3.5mm height

Tight tolerances available

High shock and vibration resistance

Ideal for PDAs, GPS, PCMCIA and hand-held equipment

FEATURES

OUTLINE & DIMENSIONS

Frequency Range

AT-Cut Fundamental:

8.0MHz to 50.0MHz

AT-Cut 3rd Overtone:

30.0MHz to 125.0MHz

Calibration Tolerance at 25ºC*:

from ±5ppm

(±10, ±20 or ±30ppm standard)

Frequency stability

-10° to +60°C

from ±5ppm

-20° to +70°C

from ±10ppm

-40° to +90°C

from ±15ppm

-55 to +125°C

from ±20ppm

Storage Temperature:

-55°~+105°C

Equivalent Series Resistance:

See table

Shunt Capacitance (C0):

2pF to 4pF typical, 7pF maximum

Load Capacitance (CL):

Series or from 8pF to 32pF

(Customer specified CL)

Ageing:

<±3ppm per year at +25°C

Drive level:

100 mW maximum

Reflow Soldering:

10s maximum, 260°C twice

or 180s at 230°C, once.

Package:

Ceramic base, metal lid,

Hermetic seal

Packaging:

16mm EIA tape and reel

1000 pieces per reel

SPECIFICATION

10.0 ~ 12.0

AT Fund.

80

12.1 ~ 16.0

AT Fund.

60

16.1 ~ 50.0

AT Fund.

40

30.0 ~ 40.0

AT 3rd OT

100

40.1 ~ 50.0

AT 3rd OT

80

50.1 ~ 125

AT 3rd OT

50

Frequency

Range MHz

Crystal Cut/

Mode

ESR

Ohms Max.

EQUIVALENT SERIES RESISTANCE

MF & MF2 CRYSTALS

PART NUMBER GENERATION

12.000MHz MF/20/30/-10+60/18pF/60R

Example:

Nominal Frequency

Package MF = 4 pad

MF2 = 2 pad

Calibration tolerance

at 25°C (±ppm)

Temperature Stability

over temp. range (±ppm)

Operating Temp. Range (°C)

(Lower and upper limits)

Load Capacitance

(Either SR for series or CL in pF)

Equivalent Series Resistance

(Optional - use when special

value is required)

MF2

MF

6 x 3.5mm SMD, 4 pad and 2 pad

8MHz to 125MHz