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

MJ crystals are miniature surface-mount crystals produced with a

ceramic substrate and seam-welded metal lid. Their compact size and

low mass make hem an ideal crystal for high-density applications.

Miniature size: 5.0mm x 3.2mm x 1.0mm height

Gold-plated ceramic base with metal seam-welded lid

To minimize EMI the whole crystal may be grounded

High shock and vibration resistance

Ideal for PDAs, GPS, PCMCIA, Wirless LAN etc.

FEATURES

OUTLINE & DIMENSIONS

Frequency Range:

AT-Cut Fundamental:

7.0MHz to 50.0MHz

AT-Cut 3rd Overtone:

40.0MHz 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 +85°C

from ±15ppm

Storage Temperature:

-50°~+105°C

Effective Series Resistance and Mode

7.0MHz to 50.0MHz:

50Ω max., AT-Cut Fundamental

40.0MHz to 125.0MHz:

80Ω max., AT-Cut 3rd Overtone

Operating Temperature Range:

from 0° ~ +50°C

to -55° ~ +105°

Shunt Capacitance (C0):

2pF to 4pF typical, 5pF maximum

Load Capacitance (CL):

Series or from 10pF to 32pF

(

)

Ageing:

<±3ppm per year at +25°C

Drive level:

100 mW maximum

Reflow Soldering:

10s maximum at 260°C twice

or 180s at 230°C, once.

Package:

Ceramic base, metal (Kovar) lid,

Hermetic seal

Packaging:

12mm EIA tape and reel

1000 pieces per reel

SPECIFICATION

MJ CRYSTALS

PART NUMBER GENERATION

Part numbers for MJ crystals are generated as follows:

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

Example:

Nominal Frequency

Package MJ

Calibration Tolerance

at 25°C (±ppm)

Temperature Stability

over temp. range (±ppm)

Operating Temp. Range (°C)

Load Capacitance

Equivalent Series Resistance

RoHS Status:

Compliant

Gross Leak:

1kg pressurized water immersion

test as per Euroquartz procedures.

Fine Leak:

Shock:

±5ppm max. Free drop 3 times

from 75cm height onto a hard

wooden board or half sine wave

acceleration of 100g peak

amplitude for 11 ms duration, 3

cycles each plane.

Vibration:

±5ppm max., frequency 10 to

55Hz, amplitude 1.5mm or

10g rms. Duration 6 hours.

Solderability:

MIL-STD-883, Method 2003

Humidity:

48 hours at 85°C, relative

humidity, non-condensing

Thermal Shock:

Temperature cycling: Exposed to

-40°C for 30 minutes then to

+85°C for 30 minutes,

- duration 5 days.

ENVIRONMENTAL SPECIFICATION

5 x 3.2 x 0.9mm SMD

7.0MHz to 125MHz