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  • 參數(shù)資料
    型號(hào): 45.000MHZHC-50/50/20/55/SR/ATF
    廠商: EUROQUARTZ LTD
    元件分類: 晶體
    英文描述: QUARTZ CRYSTAL RESONATOR, 45 MHz
    封裝: RESISTANCE WELDED, HERMATIC SEALED PACKAGE-2
    文件頁(yè)數(shù): 1/1頁(yè)
    文件大?。?/td> 156K
    代理商: 45.000MHZHC-50/50/20/55/SR/ATF
    EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
    Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk
    THROUGH-HOLE CRYSTALS
    Frequency Range:
    1.0MHz to 250.0MHz
    Calibration Tolerance at 25C:
    from ±3ppm to ±50ppm
    Frequency stability over temp:
    from ±3ppm to ±100ppm
    Load Capacitance:
    8pF to 50pF, or Series
    Ageing:
    ±3ppm max 1st year,
    ±1ppm max per year after
    Drive level:
    1mW max
    Static capacitance (C0):
    7pF max
    Holder:
    Resistance-weld, hermetic seal
    Part Numbers for Holder Variants *
    Holder Type
    Holder Designation
    Standard 2 lead:
    HC49
    Low height versions:
    HC49/T (from 4.0MHz)
    Centre Earth Lead:
    HC49/3W
    Centre Earth Lead (Low):
    HC49/T/3W (from 4.0MHz)
    ‘Plug-in’ for use in socket:
    HC-50
    Very low cost crystal
    Available with close tolerances
    Fully customisable specification
    Comprehensive Euroquartz stockholding
    Industry-standard package with options
    Very wide frequency range
    HC49 SERIES CRYSTALS
    * HC49 crystals are also available for surface-mount applications with
    formed leads and fitted with a clip. See ‘49MJ’ in the surface-mount
    crystal section on Euroquartz website; www.euroquartz.co.uk
    FEATURES
    GENERAL SPECIFICATION
    DESCRIPTION
    HC49 crystals are a long-established industry-standard part. Basic
    specification HC49 crystals provide the lowest cost crystal available but
    these crystals can also be manufactured to very close tolerances and low
    ESR values. Holder variants are HC49/T (truncated), providing a lower
    height version, 3-wire versions where the crystal base and body can be
    earthed by a centre earth wire and HC50 which has larger diameter leads
    specifically for socket mounting.
    OUTLINES & DIMENSIONS
    Frequency
    (MHz)
    Crystal Cut/
    Oscillation Mode
    ESR (max)
    (Ohms)
    OSCILLATION MODE & ESR
    1.0 ~ 1.3
    SL Fund.
    5000
    2.01 ~ 3.0
    AT Fund.
    400
    3.01 ~ 3.2
    AT Fund.
    200
    3.21 ~ 3.5
    AT Fund.
    150
    3.51 ~ 3.9
    AT Fund
    120
    3.91 ~ 5.0
    AT Fund.
    100
    5.01 ~ 7.0
    AT Fund.
    50
    7.01 ~ 10.0
    AT Fund.
    35
    10.0 ~ 30.0
    AT Fund.
    25
    30.1 ~ 45
    AT Fund.
    20
    24.0 ~ 100
    AT 3rd OT
    40
    80.0 ~ 160
    AT 5th OT
    70
    110 ~ 250
    AT 7th OT
    120
    ü Indicates this stability is available over the stated operating temp. range
    PART NUMBER GENERATION
    HC49 crystal part numbers are derived as follows:
    Example:
    16.000MHz HC49/30/50/10/30pF/ATF
    Frequency/Holder/Calibration/Temp. Stability/ Temp. Range/Circuit
    FREQUENCY STABILITY OVER TEMPERATURE
    0° to +50°
    ü
    -10° to +60°
    ü
    -20° to +70°
    X
    ü
    -30° to +80°
    X
    ü
    -40° to +90°
    X
    ü
    -55° to +105°
    X
    ü
    Operating
    Temp. °C
    Temperature Stability (ppm)
    ±3
    ±5
    ±7.5
    ±10
    ±15
    ±20
    ±30
    相關(guān)PDF資料
    PDF描述
    4.000MHZHC49/T/50/30/0/30PF/ATF QUARTZ CRYSTAL RESONATOR, 4 MHz
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    45.000MHZHC49/T/3W/50/20/0/8PF/ATF QUARTZ CRYSTAL RESONATOR, 45 MHz
    45.000MHZHC-50/50/15/0/50PF/ATF QUARTZ CRYSTAL RESONATOR, 45 MHz
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