HC49/4H SMX CRYSTALS
ISSUE 9; 18 OCTOBER 1999
Delivery Options
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Outline in mm (inches)
SURFACE MOUNT
QUARTZ CRYSTALS
Common frequencies are available from stock. Please
see p143 for details
1 1 .4 鹵 0 .2 (0 .4 4 8 鹵 0 .0 0 1 )
1 0 .3 m a x (0 .4 0 6 m a x )
0 .7
(0 .0 2 8 )
4 .3 m a x
(0 .1 6 9 m a x )
S o ld e r p a d la y o u t
1 5 .0 (0 .5 9 )
4 .9 m a x .
(0 .1 9 3 m a x )
4 .0
(0 .1 5 7 )
2 .0
(0 .0 7 9 )
3 .8 m a x
(0 .1 5 m a x )
Holder Style
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HC49/4H SMX crystals are resistance welded, her-
metically sealed in an inert atmosphere with glass to
metal seals securing the lead wires. The lead wires are
formed into a gull wing and mounted on a plastic
former
Lower profiles available, please contact our sales office
1 3 .4 m a x . (0 .5 2 8 m a x )
4 .4
(0 .1 7 3 )
0 .6
(0 .0 2 4 )
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General Specifications
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Load Capacitance (C
L
): 10pF to 75pF or Series
Drive Level: 0.5mW max
Static Capacitance (C
0
): 9pF max
Ageing: 鹵3ppm typical per year
Typical Frequency vs Temperature Curves
for various angles of AT-cut crystals
+ 2 5
Standard Frequencies
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D
f/f
0
(p p m )
3.579545MHz, 3.68640MHz, 4.0MHz,
4.91520MHz, 5.0MHz, 6.0MHz, 7.37280MHz,
8.0MHz, 8.1920MHz, 9.83040MHz, 10.0MHz,
11.05920MHz, 12.0MHz, 14.318180MHz,
14.74560MHz, 15.360MHz, 16.0MHz,
18.4320MHz, 19.66080MHz, 20.0MHz
Standard Frequency Tolerances and Stabilities
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0
鹵50ppm, 鹵100ppm
Operating Temperature Ranges
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0 to 50擄C
鈥?0 to 60擄C
鈥?0 to 70擄C
鈥?0 to 80擄C
聳 2 5
聳 5 0
聳 2 0
+ 2 5
T e m p e ra tu re (擄 C )
+ 7 0
+ 1 0 0
Storage Temperature Range
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鈥?0 to 85擄C
Shock: 981m/s
2
for 6ms, three shocks in each direc-
tion along three mutually perpendicular planes
Vibration: 10 to 60Hz 0.75mm displacement, 60 to
500Hz 98.1m/s
2
acceleration, 30 minutes in each of
three mutually perpendicular planes
Typical Solder Condition - Infrared Reflow
擄C
1 0 s e c
2 4 5 擄C
2 0 0
1 ~ 5 擄 C /s e c
Environmental Specification
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Marking
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Frequency only
1 0 0
1 ~ 9 擄 C /s e c
1 ~ 5 擄 C /s e c
Minimum Order Information Required
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Frequency + Holder + Frequency Tolerance @ 25擄C
+ Frequency Stability + Operating Temperature
Range + Circuit Condition + Overtone Order
0
6 0 s e c
2 0 0 s e c
T im e
Europe Tel: +44 (0)1460 74433
Fax: +44 (0)1460 72578
162
Americas Tel: +1 919 941 0430
Fax: +1 919 941 0530
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