Outline in mm - HC49/4H & HC49/4H-3L
Typical Frequency vs Temperature Curves
for various angles of AT-cut crystals
Typical Frequency vs Temperature Curves
for various angles of BT-cut crystals
Eur
Am
HC49/4H Crystals
LEADED
QUARTZ
CRYST
ALS
Europe Tel: +44 (0)1460 270200 Fax: +44 (0)1460 72578
Website: www.cmac.com/mt/
Americas Tel: +1 919 941 9333 Fax: +1 919 941 9371
1
Asia Tel: +86 (21) 6468 6663 Fax: +86 (21) 6428 2466
ISSUE 11; 13 MAY 2004
Delivery Options
s
Common frequencies maybe available from stock
s
Lower height holders available please contact sales
office
Holder Style
s
HC49/4H crystals are resistance welded, hermetically
sealed in an inert atmosphere with glass to metal seals
securing the lead wires
s
Holders suffixed `3L have a centre third wire which
grounds the case
General Specifications
s
Load Capacitance (CL): 10pF to 75pF or Series
s
Drive Level: 500W max.
s
Static Capacitance (C0): 7pF max.
s
Ageing: 5ppm typical per year, 1ppm available on
request
Standard Frequency Tolerances and Stabilities
s
10ppm, 20ppm, 30ppm, 50ppm, 100ppm, tighter
tolerances and stabilites available on request.
Operating Temperature Ranges
s
0 to 50C
30 to 80C
10 to 60C
40 to 90C
20 to 70C
55 to 105C
Storage Temperature Range
s
55 to 125C
Environmental Specification
s
Shock: 981m/s
-2
for 6ms, three shocks in each
direction along three mutually perpendicular planes
s
Vibration: 10 to 60Hz 0.75mm displacement, 60 to
500Hz 98.1m/s
-2
acceleration, 30 minutes in each of
three mutually perpendicular planes
Marking
s
Frequency only
Minimum Order Information Required
s
Frequency + Holder + Frequency Tolerance @ 25C +
Frequency Stability + Operating Temperature Range +
Circuit Condition + Overtone Order + Tape & Reel
Packaging Available
25
Temperature (C)
50
0
+25
+100
+25
+70
20
f/
f0
(p
pm
)
50
Temperature (C)
50
+10
+100
+25
+70
20
0
f/
f
0
(p
pm
)
12
.7 m
i
n
4.0
m
a
x
4.880.2
4.7
11.05 max
0.45
Pin connecitons
1. Crystal
2. Case & ground
3. Crystal
4.0
m
a
x
4.7
11.05
12
.7 m
i
n
4.880.2
0.45
= =
1 2 3
Europe Tel: +44 (0)1460 270200 Fax: +44 (0)1460 72578
Website: www.cmac.com/mt/
Americas Tel: +1 919 941 9333 Fax: +1 919 941 9371
2
Asia Tel: +86 (21) 6468 6663 Fax: +86 (21) 6428 2466
LEADED
QUARTZ
CRYST
ALS
Electrical Specifications - maximum limiting values
Frequency Range
Frequency Tolerance
@ 25C 2C
Operating
Temperature Range
Frequency Stability Available Over
Operating Temperature
ESR
max.
Vibration Mode
Minimum
Maximum
3.0 to <4.0MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
300
Fundamental
AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
30ppm
100ppm
-55 to 105C
100ppm
500ppm
4.0 to <5.5MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
130
Fundamental
AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
30ppm
100ppm
-55 to 105C
100ppm
500ppm
5.5 to <6.0MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
100
Fundamental
AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
30ppm
100ppm
-55 to 105C
100ppm
500ppm
6.0 to <9.0MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
80
Fundamental
AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
30ppm
100ppm
-55 to 105C
100ppm
500ppm
9.0 to <13.0MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
60
Fundamental
AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
30ppm
100ppm
-55 to 105C
100ppm
500ppm
13.0 to <20.0MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
40
Fundamental
AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
30ppm
100ppm
-55 to 105C
100ppm
500ppm
20.0 to <30.0MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
30
Fundamental
AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
30ppm
100ppm
-55 to 105C
100ppm
500ppm
Frequency Range
Frequenct Tolerance
@ 25C 2C
Operating
Temperature Range
Frequency Stability Available Over
Operating Temperature
ESR
max.
Vibration Mode
Minimum
Maximum
27.0 to 50.0MHz
Inclusive with
Frequency Stability
0 to 50C
50ppm
100ppm
40
Fundamental
BT cut
-10 to 60C
70ppm
100ppm
-20 to 70C
100ppm
100ppm
28.0 to 100.0MHz
10ppm to 100ppm
0 to 50C
15ppm
100ppm
100
3rd Overtone AT cut
-10 to 60C
20ppm
100ppm
-20 to 70C
20ppm
100ppm
-30 to 80C
25ppm
100ppm
-40 to 90C
50ppm
100ppm
-55 to 105C
50ppm
100ppm
Europe Tel: +44 (0)1460 270200 Fax: +44 (0)1460 72578
Website: www.cmac.com/mt/
Americas Tel: +1 919 941 9333 Fax: +1 919 941 9371
3
Asia Tel: +86 (21) 6468 6663 Fax: +86 (21) 6428 2466
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