| HC-49/U TYPE |
| 001 |
FEATURE
|
Product ID
|
49U
|
|
FEEQUENCY RANGE
|
1.0-100.0MHz
|
|
OSCILLATION MODE
|
AT CUT Fundamental, 3rd, 5th
|
|
FREQUENCY TOLERANCE
|
±20,±30,±50ppm at 25℃
|
|
OPERATING TEMPERATURE
CHARATERISTICS
|
See table 1
|
|
LOAD CAPACITANCE
|
Serles, 16,20,30,32pF or speclal
|
|
DRIVE LEVEL
|
From 100μW to 500μW
|
|
Parallel capacitance
|
7.0pF max or speclal
|
|
SERIES RESISTANCE
|
See table 2
|
|
INSULATION RESISTANCE
|
More than 500MΩ at DC 100V
|
|
AGING
|
±5ppm/year
|
|
MEASURE INSTRUMENT
|
Saunders 250B
|
|
table 1
|
Frequency stability (ref.to 25℃)
|
operating temp
|
±20ppm
|
±30ppm
|
±50ppm
|
|
0-50℃
|
O
|
O
|
O
|
|
-10 - 60℃
|
O
|
O
|
O
|
|
-20 - 70℃
|
|
O
|
O
|
|
table 2
|
Equivalent series resistance (ESR)
|
Frequency(MHz)
|
Mode
|
ESR(max Ω)
|
|
1.8-2.9
|
Fundamental
|
300-500
|
|
3-4.9
|
Fundamental
|
90-120
|
|
5-6.9
|
Fundamental
|
50-70
|
|
7-9.9
|
Fundamental
|
30-50
|
|
10-19.9
|
Fundamental
|
30-40
|
|
20-33.0
|
Fundamental
|
30
|
|
25-29.9
|
3rd overtone
|
40
|
|
30-49.9
|
3rd overtone
|
40-50
|
|
50-69.9
|
3rd overtone
|
50-60
|
|
70-80
|
3rd overtone
|
60-70
|