FREQ449SMD/3/20/0+50/32 datasheet, PDF

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FREQ449SMD/3/20/0+50/32: DescriptionParallel - Fundamental Quartz Crystal, 3.21MHz Min, 3.5MHz Max, ROHS COMPLIANT, HERMETIC SEALED, RESISTANCE WELD, SMD, 3 PIN; CategoryPassive components Crystal/resonator; File Size113KB，1 Pages; ManufacturerEuroquartz; Websitehttp://www.euroquartz.co.uk/; Environmental Compliance

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FREQ449SMD/3/20/0+50/32 Overview

Parallel - Fundamental Quartz Crystal, 3.21MHz Min, 3.5MHz Max, ROHS COMPLIANT, HERMETIC SEALED, RESISTANCE WELD, SMD, 3 PIN

FREQ449SMD/3/20/0+50/32 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Euroquartz
package instruction	ROHS COMPLIANT, HERMETIC SEALED, RESISTANCE WELD, SMD, 3 PIN
Reach Compliance Code	compliant
Other features	AT-CUT CRYSTAL; BULK; AMMO PACK; TAPE
Ageing	1 PPM/YEAR
Crystal/Resonator Type	PARALLEL - FUNDAMENTAL
Drive level	100 µW
frequency stability	0.002%
frequency tolerance	3 ppm
load capacitance	32 pF
Installation features	SURFACE MOUNT
Maximum operating frequency	3.5 MHz
Minimum operating frequency	3.21 MHz
Maximum operating temperature	50 °C
Minimum operating temperature
Series resistance	150 Ω
surface mount	YES
Base Number Matches	1

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EURO

QUARTZ

SMD form of HC49 Crystals

Low-cost, industry-standard crystal unit formed for SMD

Available with close tolerances

Frequency range 1.0MHz to 200MHz

Specifications fully customisable

DESCRIPTION

49SMD crystals are long-established, industry-standard HC49 crystals

with formed leads and a clip to facilitate surface mounting. The

crystals provide a high quality but very low cost source of system

clock frequency 49SMD crystals may be produced to very close

tolerances.

OUTLINE & DIMENSIONS

49SMD Crystals

1.0MHz to 200.0MHz

SPECIFICATION

Frequency Range:

1.0MHz to 200MHz

Oscillation Mode:

See table

Calibration Tolerance at 25ºC

SL-Cut (<1.3MHz):

from ±50ppm

AT-Cut (>1.3MHz):

from ±3ppm

Frequency Stability over temperature

SL-Cut (<1.3MHz):

from ±100ppm -10° to +60°C

AT-Cut (>1.3MHz):

from ±3ppm 0° to +50°C

(see table)

Shunt Capacitance (C0):

4pF typical, 7pF maximum

Load Capacitance (CL):

Series or from 8pF to 32pF

(Customer

specified CL)

Ageing:

±3ppm maximum, 1st year,

±1ppm per year thereafter.

Drive Level:

100mW typical., 500mW max.

Crystal Holder:

Resistance-weld hermetic seal

Supply format:

Bulk pack or 'Ammo Pak' tape.

STABILITY OVER TEMPERATURE RANGE (AT-CUT CRYSTALS)

Temp.

Range °C

0~+50

-10~+60

-20~+70

-30~+80

-40~+85

-55~+125

Stability ppm

±7.5 ±10 ±15 ±20 ±30 ±50 ±100

ESR and OSCILLATION MODE

Frequency

Range MHz

1.0 ~1.3

2.01 ~ 3.0

3.01 ~ 3.2

3.21 ~ 3.5

3.51 ~ 3.9

3.91 ~ 5.0

5.01 ~ 7.0

7.01 ~ 10.0

10.0 ~ 30.0

30.1 ~ 45.0

24.0 ~ 100

80.0 ~ 160

110 ~ 250

Crystal Cut

Osc. Mode

SL Fund.

AT Fund.

AT 3rd OT

At 5th OT

AT 7th OT

ESR

Ω Max.

5000

400

200

150

120

100

120

(ü=

Available, X = Not available)

PART NUMBER FORMAT

Example:

8.000MHz 49SMD

/10/10/-20+70/32/ 30R

Frequency in MHz

Package

49SMD or 49TSMD

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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