Sep 29, 2004 - â30 to 80°C. â10 to 60°C. â40 to 90°C. â20 to 70°C. â55 to 105°C. Storage Temperature Range. â¡. â55 to 125°C. Environmental Specification.
Lower height holders available please contact sales office ∅0.45
Holder Style
■
4.88±0.2
4.7
HC49/4H crystals are resistance welded, hermetically sealed in an inert atmosphere with glass to metal seals securing the lead wires Holders suffixed ‘–3L have a centre third wire which grounds the case
∅0.45
Pin connections 1. Crystal 2. Case & GND 3. Crystal
4.88±0.2 = = 1 2 3 11.05
11.05 max
General Specifications ■
Load Capacitance (CL): 10pF to 75pF or Series
■
Drive Level: 500µW max.
■
Static Capacitance (C0): 7pF max.
■
Ageing: ±5ppm typical per year, ±1ppm available on request
Typical Frequency vs Temperature Curves for various angles of AT-cut crystals +25
±10ppm, ±20ppm, ±30ppm, ±50ppm, ±100ppm, tighter tolerances and stabilities available on request.
Operating Temperature Ranges ■
0 to 50°C
∆f/f0 (ppm)
Standard Frequency Tolerances and Stabilities ■
0
–30 to 80°C
–10 to 60°C
–40 to 90°C
–20 to 70°C
–55 to 105°C
Storage Temperature Range ■
–55 to 125°C
–25 –50
–20
Environmental Specification ■
Shock: 981m/s2 for 6ms, three shocks in each direction along three mutually perpendicular planes
■
Vibration: 10 to 60Hz 0.75mm displacement, 60 to 500Hz 98.1m/s2 acceleration, 30 minutes in each of three mutually perpendicular planes
+100
+10 0
Frequency only
Minimum Order Information Required ■
+70
Typical Frequency vs Temperature Curves for various angles of BT-cut crystals
Marking ■
+25 Temperature (°C)
∆f/f0 (ppm)
LEADED QUARTZ CRYSTALS
■
12.7 min
Common frequencies may be available from stock
■
12.7 min
■
4.0 max
Delivery Options
4.0 max
Outline in mm - HC49/4H & HC49/4H-3L
4.7
ISSUE 12; 29 SEPTEMBER 2004
Frequency + Holder + Frequency Tolerance @ 25°C + Frequency Stability + Operating Temperature Range + Circuit Condition + Overtone Order + Tape & Reel Packaging Available
–50
–50
16
–20
+25 Temperature (°C)
+70
+100
Electrical Specifications - maximum limiting values
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go into places where the daylight does not pene- trate, they will have to light ... in a backyard where a fierce dog howls and leaps at you from the extremity of its ...
E. Hecht, Optics, Addison-Wesley Publishing. ⢠Peter J. Collings and Michael Hird, Introduction to Liquid. Crystals-Chemistry and Physics, Taylor and Francis, ...
Dec 9, 2003 - A critical temperature of 109 K and transition widths of 3â5 K were reported for those ... properties were measured for the first time on those crystals, such as the ..... glass to a vortex liquid and are reported in [30]. Nevertheles
E. Hecht, Optics, Addison-Wesley Publishing. ⢠Peter J. Collings and Michael Hird, Introduction to Liquid. Crystals-Chemistry and Physics, Taylor and Francis, ...
à l'intérieur du corps afin de pouvoir refermer le corps. 15 : Refermer le dos de l'animal au point triple en s'assurant de prendre toutes les épaisseurs. Retourner.
Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, U.K. ... specified chemistry, size and crystal structure have presented a formidable challenge for ... constrained by the encapsulating van der Waals surface of the carbon ..
... the content of ordered water molecules from the bulk mother liquor inside the crystals. ..... [49] G. Laubender, N. Krauss, W. Saenger, J. Frank, P. Fromme,.
Structural biology: 'seeing' crystals the XFEL way. Vivien Marx ... They often do not form crystals of the size, .... Page 3 ... X-ray structure determination and notes.
May 14, 2004 - Transmission electron microscopy observations have been performed on icosahedral AlâPdâMn quasi-crystal samples deformed at 20 °C ...
DMCA. Copyrighted Work that you can Claim. Space Charge Limited Currents in Cadmium Sulphide. Crystals. Abstract In order to test whether Lampert's theory (1956) of one carrier space-charge-limited currents can be applied to cadmium sulphide it is ne
sidered as representative of the whole world of proteins, and more ... cell, reso lutio n lim it, cell p ara m eters. %S o lven t. (vol/vol). Lyso zy m e. (turkey ..... [23] H.D. Becker, J. Reinbolt, R. Kreutzer, R. GiegeH, D. Kern,. Biochemistry 36
with high strength and large hardness, and exhibits excel- lent behavior in extreme ... why, for instance, most theoretical investigations of point and extended .... was done by first applying an increasing shear strain on the computational cell.
Journal of Crystal Growth 232 (2001) 376â386 ... monoclinic crystal structure (form B) was solved by molecular replacement using the orthorhombic crystal ... Here we present the first data on this chemistry- ... Catalytic mechanisms for the.