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부품번호 | MQ2 기능 |
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기능 | SMD | ||
제조업체 | EUROQUARTZ | ||
로고 | |||
전체 1 페이지수
EURO QUARTZwww.datasheet4u.com
FEATURES
Miniature size: 7.0mm x 5mm x 1.2mm height
Gold-plated ceramic base with metal seam-welded lid
To minimize EMI the whole crystal may be grounded
Tight tolerance of ±10pppm for telecommunications use
High shock and vibration resistance
· Ideal for PDAs, GPS, PCMCIA and hand-held equipment
DESCRIPTION
Miniature surface-mount MQ crystals are produced using a ceramic
substrate and fitted with a hermetically-sealed metal lid. The crystals
are competitively priced, well-suited to mass-market electronic
applications and may also be produced to close tolerances making this
crystal a good choice for applications requiring low mass and tight
tolerances. There are two package variants, 4 pad and two pad.
MQ & MQ2 CRYSTALS
7 x 5mm SMD, 4 pad or 2 pad
OUTLINE & DIMENSIONS
MQ
SPECIFICATION
Frequency Range
AT-Cut Fundamental:
AT-Cut 3rd Overtone:
Calibration Tolerance at 25ºC*:
Frequency stability
-10° to +60°C
-20° to +70°C
-40° to +90°C
-55 to +125°C
Storage Temperature:
Effective Series Resistance:
Shunt Capacitance (C0):
Load Capacitance (CL):
Ageing:
Drive level:
Reflow Soldering:
Package:
Packaging:
6.0MHz to 45.0MHz
30.0MHz to 125.0MHz
from ±5ppm
(±10, ±20 or ±30ppm standard)
from ±5ppm
from ±10ppm
from ±15ppm
from ±20ppm
-55°~+105°C
See table
2pF to 4pF typical, 7pF maximum
Series or from 10pF to 32pF
(Customer specified CL)
<±3ppm per year at +25°C
100 mW maximum
10s maximum, 260°C twice
or 180s at 230°C, once.
Ceramic base, metal lid,
Hermetic seal
16mm EIA tape and reel
1000 pieces per reel
MQ2
EFFECTIVE SERIES RESISTANCE
Frequency Crystal Cut/ ESR
Range MHz Mode Ohms Max.
6.0 ~ 11.0
11.1 ~ 14.0
14.1 ~ 45.0
30.0 ~ 40.0
40.1 ~ 50.0
50.1 ~ 125
AT Fund.
AT Fund.
AT Fund.
AT 3rd OT
AT 3rd OT
AT 3rd OT
60
50
40
100
80
90
PART NUMBER GENERATION
Example:
12.000MHz MQ/20/30/-10+60/18pF/60R
Nominal Frequency
Package
(MQ = 4 pad, MQ2 = 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)
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: [email protected] www.euroquartz.co.uk
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |