HC49153020SR3RDBUT Datasheet, PDF (20/31 Pages) List of Unclassifed Manufacturers – SPECIFYING QUARTZ CRYSTALS

HC49/4H & HC49/3H CRYSTALS
ISSUE 8; 12 JUNE 1998
Delivery Options
n _{Common frequencies are available from stock. Please}
see p4 for details
Holder Style
n _{HC49/4H & HC49/3H crystals are resistance welded,}
hermetically sealed in an inert atmosphere with glass
to metal seals securing the lead wires.
n _{Holders suffixed ‘–3L have a centre third wire which}
grounds the case
General Specifications
n _{Load Capacitance (CL): 10pF to 75pF or Series}
n _{Drive Level: 500mW max.}
n _{Static Capacitance (C0): 7pF max.}
n _{Ageing: ±3ppm typical per year}
Standard Frequency Tolerances and Stabilities
n _{±10ppm, ±20ppm, ±30ppm, ±50ppm, ±100ppm}
Operating Temperature Ranges
n _{0 to 50°C}
–10 to 60°C
–20 to 70°C
–30 to 80°C
–40 to 90°C
–55 to 105°C
Storage Temperature Range
n _{–55 to 125°C}
Environmental Specification
n _{Shock: 981m/s}² _{for 6ms, three shocks in each direc-}
tion along three mutually perpendicular planes
n _{Vibration: 10 to 60Hz 0.75mm displacement, 60 to}
500Hz 98.1m/s² acceleration, 30 minutes in each of
three mutually perpendicular planes
Marking
n _{Frequency only}
Outline in mm (inches) - HC49/3H & HC49/3H-3L
3 .0 m a x
(0 .1 1 8 m a x )
3 .0 m a x
(0 .1 1 8 m a x )
Outline in mm (inches) - HC49/4H & HC49/4H-3L
4 .0 m a x *
(0 .1 5 7 m a x )
4 .0 m a x *
(0 .1 5 7 m a x )
Æ 0 .4 5
(Æ 0 .0 1 2 )
1 2 .7 m in
(0 .5 m in )
4 .8 8 (0 .1 9 2 )
Æ 0 .4 5
(Æ 0 .0 1 2 )
==
4 .8 8 (0 .1 9 2 )
123
1 2 .7 m in
(0 .5 m in )
4 .6 5 (0 .1 8 3 )
4 .6 5 (0 .1 8 3 )
1 1 .0 5
(0 .4 3 5 )
* 4 .2 (0 .1 6 5 ) m a x fo r
fre q u e n c ie s < 3 .0 M H z
1 1 .0 5
(0 .4 3 5 )
P in c o n n e c tio n s
1 . C ry s ta l
2 . C a s e & g ro u n d
3 . C ry s ta l
Typical Frequency vs Temperature Curves
for various angles of AT-cut crystals
+ 25
0
–25
–50
–20
+ 25
T e m p e ra tu re (° C )
+ 70
+ 100
Typical Frequency vs Temperature Curves
for various angles of BT-cut crystals
+ 10
0
Æ 0 .4 3
(Æ 0 .0 1 7 )
1 3 .2 m in
(0 .5 2 m in )
Æ 0 .4 3
(Æ 0 .0 1 7 )
1 3 .2 m in
(0 .5 2 m in )
–50
==
4 .8 8 (0 .1 9 2 )
4 .8 8 (0 .1 9 2 )
123
4 .6 5 (0 .1 8 3 )
4 .6 5 (0 .1 8 3 )
1 1 .0 m a x
(0 .4 3 5 m a x )
1 1 .0 m a x
(0 .4 3 5 m a x )
P in c o n n e c tio n s
1 . C ry s ta l
2 . C a s e & g ro u n d
3 . C ry s ta l
Europe Tel: [phone] Fax: [phone]
20
–50
–20
+ 25
T e m p e ra tu re (° C )
+ 70
+ 100
Americas Tel: [phone] Fax: [phone]