20.000MHZX21/30/15/-40+85/12PF datasheet, PDF

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20.000MHZX21/30/15/-40+85/12PF: DescriptionParallel - Fundamental Quartz Crystal, 20MHz Nom, ROHS COMPLIANT, ULTRA MINIATURE, SMD, 4 PIN; CategoryPassive components Crystal/resonator; File Size168KB，1 Pages; ManufacturerEuroquartz; Websitehttp://www.euroquartz.co.uk/; Environmental Compliance

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20.000MHZX21/30/15/-40+85/12PF Overview

Parallel - Fundamental Quartz Crystal, 20MHz Nom, ROHS COMPLIANT, ULTRA MINIATURE, SMD, 4 PIN

20.000MHZX21/30/15/-40+85/12PF Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Euroquartz
package instruction	ROHS COMPLIANT, ULTRA MINIATURE, SMD, 4 PIN
Reach Compliance Code	compli
Other features	AT-CUT CRYSTAL; TAPE AND REEL
Ageing	3 PPM/YEAR
Crystal/Resonator Type	PARALLEL - FUNDAMENTAL
Drive level	10 µW
frequency stability	0.0015%
frequency tolerance	30 ppm
load capacitance	12 pF
Installation features	SURFACE MOUNT
Nominal operating frequency	20 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
physical size	L2.05XB1.65XH0.6 (mm)/L0.081XB0.065XH0.024 (inch)
Series resistance	120 Ω
surface mount	YES

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EURO

QUARTZ

2.0 x 1.6 x 0.6mm SMD

Frequency range 20MHz to 54MHz, fundamental mode

Ultra-miniature package 2.0 x 1.6 x 0.6mm

Packaged in standard EIA tape and reel

Exceptionally low ageing

High shock and vibration resistance

Ideal for PDAs, hand-held GPS, PCMCIA etc.

DESCRIPTION

X21 crystals are ultra-miniature AT-cut crystals covering the frequency

range 20MHz to 54MHz in fundamental mode. Their exceptionally

small size (2.0 x 1.6mm) and low mass coupled with high shock and

vibration resistance makes these crystals ideal for miniaturized

handheld equipment and similar high-density applications.

OUTLINE & DIMENSIONS

X21 CRYSTALS

20.0MHz to 54.0MHz

SPECIFICATION

Frequency Range

AT-Cut Fundamental:

Calibration Tolerance at 25ºC:

Frequency stability

-10° to +60°C

-20° to +70°C

-40° to +85°C

Storage Temperature:

Equivalent Series Resistance:

Shunt Capacitance (C0):

Load Capacitance (CL):

Ageing:

Drive level:

Reflow Soldering:

Packaging:

20.0MHz to 54.0MHz

±10ppm, ±20ppm or ±30ppm

from ±5ppm

(contact Euroquartz)

from ±10ppm

from ±15ppm

-50°~+105°C

See table

2pF to 4pF typical, 5pF maximum

Series or from 8pF to 32pF

<±3ppm per year at +25°C

10 µW typ., 100 µW max.

10s maximum at 260°C twice

or 180s at 230°C, once.

EIA tape and reel

Note: The entire crystal package may be grounded via the top

metal lid and pads 2 and 4 on the underside of the unit.

PART NUMBER GENERATION

EQUIVALENT SERIES RESISTANCE

Frequency

Range MHz

20.0~30.0

30.1~54.0

ESR

Ω Max.

120

Part numbers for X21 crystals are generated as follows:

Example:

24.000MHz X21/10/30/-10+60/12pF/80R

Nominal Frequency

Package

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)

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

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