HC-49/U-S
Miniature Quartz Crystal Unit for Microprocessor Model HC-49/U-S
s
Features
¡Height
3.5mm, the volume is compact at about one-fourth that of
the former product (HC-49/U).
¡A
resistance weld completely sealed type.
¡The
frequency stability is good, the reliability is high.
¡Multiple
standard frequencies.
¡Copes
with high density mounting and is optimum for mass
production models.
s
Specifications
Type
Main application
Frequency Range
Standard Frequency
Overtone Order
Operating Temp. Range
Storage Temp. Range
Frequency
Tolerance
at 25:
Over The Oper. Temp. Range
HC-49/U-S
AV
•
PC
3.2~60MHz
Table 1
Table 2
3.2~29MHz : Fundamental
29~60MHz : 3rd O.T.
-10~+70:
-40~+85:
±15, ±30, ±50×10
-6
Automotive engine control
4~20MHz
Table3
Fundamental
-40~+125:
-40~+150:
±100×10
-6
±200×10
-6
(referred to 25:)
Table 3
Table 3
±15, ±30, ±50×10
-6
(referred to 25:)
Table 1
Table 1
Table 2
Table 2
7.0pF MAX.
0.3mW MAX.
∆F/F
:
±10×10
-6
Three drops onto a hard wood board from the height of 20cm
∆F/F
:
±10×10
-6
10~55Hz, amplitude 0.7~0.9mm, each to 3 directions, 30 minutes each
Load Capacitance
Equivalent Series Resistance
Shunt Capacitance
Drive Level
Shock
Vibration
Three drops onto a hard wood
board from the height of 100cm
10~55Hz, amplitude 1.5mm, each
to 3 directions, 6 hours each
s
Table 1
Standard Frequencies
Equivalent
Load
series
Frequency capacitance
resistance
(
MHz
)
(
pF
)
(
ΩMAX.
)
3.579545
4.433619
14.31818
17.734476
Series/16
Series/16
Series/12
Series/12
150
120
50
50
s
Table 2 Standard Frequencies
Frequency
(
MHz
)
3.200
3.579545
3.6864
4.000
4.194304
4.332
4.433619
4.500
4.9152
6.000
6.144
7.2
7.3728
8.000
8.4672
9.8304
10.000
10.240
10.738635
11.000
11.0592
s
Outline
Equivalent
series
resistance
(
ΩMAX.
)
Equivalent
Load
series
capacitance resistance
(
pF
)
(
ΩMAX.
)
16
16
16
16
11.5
16
16
14
16
16
16
10
16
16
16
16
12
12
12
12
12
300
150
150
150
120
120
120
120
100
90
90
90
90
90
90
90
90
90
90
90
90
Load
Frequency capacitance
(
MHz
)
(
pF
)
12.000
12.288
13.500
14.31818
16.000
16.9344
17.734476
20.000
21.47727
24.000
24.576
27.000
29.4912
32.000
33.8688
40.000
48.000
50.000
54.000
60.000
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
HC-49/U-S
11.00MAX
10.3MAX
3.8MAX
3.5
MAX.
5.0MAX
s
Table 3
Standard Frequencies
Frequency
(
MHz
)
4.000
5.000
6.000
8.000
10.000
12.000
16.000
18.000
20.000
Equivalent
Load
series
capacitance resistance
(
pF
)
(
ΩMAX.
)
12
12
12
12
12
12
12
12
12
200
200
120
90
90
70
50
50
50
70
70
50
50
50
50
50
50
50
50
50
50
150
150
150
150
150
150
150
150
φ0.43±0.05
4.88±0.2
Dimensions(mm)
20±1
微控制器 MCU
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