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A169K

更新时间：2025-07-03 02:49:56
品牌：ETC
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HC49/4H & HC49/3H CRYSTALS  
Outline in mm (inches) - HC49/4H & HC49/4H-3L  
ISSUE 9; 18 OCTOBER 1999  
Delivery Options  
n
4
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.
0
.
m
5
a
x
4
(
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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
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2
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7
m
i
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Holder Style  
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1
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2
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7
m
i
n
. 4  
Æ
0
5
0
.
5
m
i
n
)
Æ
0
.
4
5
0
.
5
m
i
n
)
0
(
Æ
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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
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1
9
2
1
2
3
n
Holders suffixed ‘–3L have a centre third wire which  
4
.
6
5
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1
8
4
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6
5
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1
8
3
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grounds the case  
1
0
1
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0
3
5
5
1
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1
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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
(
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0
.
m
a
x
3
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0
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m
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0
1
1
8
m
a
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)
0
1
1
8
m
a
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)
1
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3
.
2
m
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n
1
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Æ
0
.
4
3
Æ
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5
2
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)
0
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)
(
Æ
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1
7
)
Æ
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–
5
0
=
=
4
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8
8
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2
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)
.
8
8
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0
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1
9
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1
2
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4
.
6
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1
8
3
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4
.
6
a
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0
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1
8
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1
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1
.
0
m
5
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1
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1
.
0
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5
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P
1
2
3
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.
.
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c
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s
0
.
4
3
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0
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4
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C
C
r
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y
y
s
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l
C
a
s
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&
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n
d
2
–
5
0
–
0
+
2
5
+
7
+
0
1
0
0
T
e
m
p
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r
a
t
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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  
Minimum Order Information Required  
n
Frequency + Holder + Frequency Tolerance @ ±5°C + Frequency Stability + Operating Temperature Range +  
Circuit Condition + Overtone Order  
Electrical Specification – maximum limiting values  
Frequency Range  
Frequency Tolerance  
@ 25°C 2°C  
Operating  
Temperature Range  
Frequency Stability Available Over  
Operating Temperature  
ESR  
max.  
Vibration  
Mode  
Minimum  
±±5ꢀꢀp  
±20ꢀꢀp  
±20ꢀꢀp  
±25ꢀꢀp  
±30ꢀꢀp  
±±00ꢀꢀp  
±±5ꢀꢀp  
±20ꢀꢀp  
±20ꢀꢀp  
±25ꢀꢀp  
±30ꢀꢀp  
±±00ꢀꢀp  
±±0ꢀꢀp  
±±5ꢀꢀp  
±±5ꢀꢀp  
±20ꢀꢀp  
±50ꢀꢀp  
±50ꢀꢀp  
±±0ꢀꢀp  
±±5ꢀꢀp  
±±5ꢀꢀp  
±20ꢀꢀp  
±50ꢀꢀp  
±50ꢀꢀp  
±±0ꢀꢀp  
±±5ꢀꢀp  
±±5ꢀꢀp  
±20ꢀꢀp  
±50ꢀꢀp  
±50ꢀꢀp  
±50ꢀꢀp  
±50ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±5ꢀꢀp  
±20ꢀꢀp  
±20ꢀꢀp  
±25ꢀꢀp  
±50ꢀꢀp  
±50ꢀꢀp  
Maximum  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±500ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±500ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
±±00ꢀꢀp  
3.50 to < 5.0MHz  
±±5ꢀꢀp to ±±00ꢀꢀp  
±±5ꢀꢀp to ±±00ꢀꢀp  
±±5ꢀꢀp to ±±00ꢀꢀp  
±±5ꢀꢀp to ±±00ꢀꢀp  
±±5ꢀꢀp to ±±00ꢀꢀp  
0 to 50°C  
–±0 to 60°C  
–20 to 70°C  
–30 to 80°C  
–40 to 90°C  
–55 to ±05°C  
0 to 50°C  
Fundapental  
AT cut  
200W  
±20W  
70W  
50W  
30W  
5.0 to < 8.0MHz  
8.0 to < ±2.0MHz  
±2.0 to < 25.0MHz  
25.0 to 32.0MHz  
Fundapental  
AT cut  
–±0 to 60°C  
–20 to 70°C  
–30 to 80°C  
–40 to 90°C  
–55 to ±05°C  
0 to 50°C  
Fundapental  
AT cut  
–±0 to 60°C  
–20 to 70°C  
–30 to 80°C  
–40 to 90°C  
–55 to ±05°C  
0 to 50°C  
Fundapental  
AT cut  
–±0 to 60°C  
–20 to 70°C  
–30 to 80°C  
–40 to 90°C  
–55 to ±05°C  
0 to 50°C  
Fundapental  
AT cut  
–±0 to 60°C  
–20 to 70°C  
–30 to 80°C  
–40 to 90°C  
–55 to ±05°C  
0 to 50°C  
20.0 to 40.0MHz  
25.0 to 70.0MHz  
Inclusive with Frequency  
Stability  
Fundapental  
BT cut  
50W  
–±0 to 60°C  
–20 to 70°C  
–30 to 80°C  
0 to 50°C  
±±5ꢀꢀp to ±±00ꢀꢀp  
3rd Overtone  
AT cut  
±00W  
–±0 to 60°C  
–20 to 70°C  
–30 to 80°C  
–40 to 90°C  
–55 to ±05°C  
Please Note: Frequencies 3.0 to 3.5MHz are available; ꢀlease contact the sales office for pore inforpation.  
Europe Tel: +44 (0)1460 74433 Fax: +44 (0)1460 7±578  
±1  
Americas Tel: +1 919 941 0430 Fax: +1 919 941 0530  

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