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A194L PDF预览

A194L

更新时间: 2024-02-15 00:02:12
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A194L 数据手册

 浏览型号A194L的Datasheet PDF文件第2页 
HC49/4H & HC49/3H CRYSTALS  
Outline in mm (inches) - HC49/4H & HC49/4H-3L  
ISSUE 9; 18 OCTOBER 1999  
Delivery Options  
n
4
(
.
0
.
m
5
a
x
4
(
.
0
.
m
5
a
x
Common frequencies are available from stock. Please  
0
1
7
m
a
0
1
7
m
a
x
)
see p4 for details  
1
(
2
.
7
m
i
n
Holder Style  
n
1
(
2
.
7
m
i
n
. 4  
Æ
0
5
0
.
5
m
i
n
)
Æ
0
.
4
5
0
.
5
m
i
n
)
0
(
Æ
0
.
1
2
)
HC49/4H & HC49/3H crystals are resistance welded,  
(
Æ
0
.
0
1
2
)
=
=
hermetically sealed in an inert atmosphere with glass  
to metal seals securing the lead wires.  
4
)
.
8
8
(
0
.
1
9
2
)
4
.
8
8
(
0
.
1
9
2
1
2
3
n
Holders suffixed ‘–3L have a centre third wire which  
4
.
6
5
(
0
.
1
8
4
.
6
5
(
0
.
1
8
3
)
grounds the case  
1
0
1
.
0
3
5
5
1
(
1
.
0
5
General Specifications  
n
(
.
4
)
0
.
4
3
5
)
Load Capacitance (CL): 10pF to 75pF or Series  
P
1
2
3
i
.
.
.
n
c
o
n
n
e
c
i
C
C
r
r
y
y
s
s
t
t
a
a
l
l
n
Drive Level: 500mW max.  
C
a
s
e
&
g
n
Static Capacitance (C0): 7pF max.  
Typical Frequency vs Temperature Curves  
for various angles of AT-cut crystals  
n
Ageing: ±3ppm typical per year  
Standard Frequency Tolerances and Stabilities  
n
±10ppm, ±±0ppm, ±30ppm, ±50ppm, ±100ppm  
+
2
5
Operating Temperature Ranges  
n
0 to 50°C  
–10 to 60°C  
–±0 to 70°C  
–30 to 80°C  
–40 to 90°C  
–55 to 105°C  
0
Storage Temperature Range  
n
–55 to 1±5°C  
Environmental Specification  
Shock: 981m/s± for 6ms, three shocks in each direc-  
n
tion along three mutually perpendicular planes  
n
–
2
5
Vibration: 10 to 60Hz 0.75mm displacement, 60 to  
500Hz 98.1m/s± acceleration, 30 minutes in each of  
three mutually perpendicular planes  
+
2
5
–
5
0
–
2
0
+
7
0
+
1
0
0
T
e
m
p
e
r
a
t
u
r
e
(
°
C
)
Typical Frequency vs Temperature Curves  
for various angles of BT-cut crystals  
Marking  
n
Frequency only  
+
1
0
0
Outline in mm (inches) - HC49/3H & HC49/3H-3L  
3
(
.
0
.
m
a
x
3
(
.
0
.
m
a
x
0
1
1
8
m
a
x
)
0
1
1
8
m
a
x
)
1
(
3
.
2
m
i
n
1
(
3
.
2
m
i
n
Æ
0
.
4
3
Æ
(
0
.
4
3
0
.
5
2
m
i
n
)
0
.
5
2
m
i
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)
(
Æ
0
.
0
1
7
)
Æ
0
.
0
1
7
)
–
5
0
=
=
4
.
8
8
(
0
.
1
9
2
4
)
.
8
8
(
0
.
1
9
2
)
1
2
3
4
.
6
a
5
(
0
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1
8
3
)
4
.
6
a
5
(
0
.
1
8
3
)
1
(
1
.
0
m
5
x
1
(
1
.
0
m
5
x
P
1
2
3
i
.
.
.
n
c
o
n
n
e
c
t
i
r
o
n
s
0
.
4
3
m
a
x
)
0
.
4
3
m
a
x
)
C
C
r
r
y
y
s
s
t
t
a
a
l
l
C
a
s
e
&
g
o
u
n
d
2
–
5
0
–
0
+
2
5
+
7
+
0
1
0
0
T
e
m
p
e
r
a
t
u
r
e
(
°
C
)
Europe Tel: +44 (0)1460 74433 Fax: +44 (0)1460 7±578  
±0  
Americas Tel: +1 919 941 0430 Fax: +1 919 941 0530  

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