HC-49U
QUARTZ CRYSTAL
This product represents our selection of
standard resistance weld type quartz
crystals.
OPTIONS:
– extended temperature range
– pullability
– mylar spacer
– vinyl sleeve
– third ground lead
– radial Tape and Reel (1,000 pcs)
FEATURES
• Cost effective
• Excellent aging
• Wide frequency range
• Tight tolerances
• Excellent reliability
• “AT” cut crystal
PART NUMBERING GUIDE
“EXAMPLE”
ECS
–
FREQUENCY (16.0000 MHz)
160
–
LOAD CAPACITANCE*
20
–
PACKAGE TYPE
1
* Load capacitance (xx=xx pF, S= series resonance)
Note: See Product Selection Guide for additional options.
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
FREQUENCY RANGE
FREQUENCY TOLERANCE
FREQUENCY STABILITY
OPERATING TEMPERATURE
STORAGE TEMPERATURE
SHUNT CAPACITANCE
LOAD CAPACITANCE
DRIVE LEVEL
AGING (FIRST YEAR)
CONDITIONS
f
o
Ref @ +25˚C
Ta=-10˚C ~ +70˚C
T
OPR
T
STG
C
0
C
L
(Customer Specified)
1.800 ~ 3.000MHz, 3.000 ~ 100.000MHz
@ +25˚C
MINIMUM
1.800
-30
-50
-10
-30
10.0
-5.0
MAXIMUM
100.000
+30
+50
+70
+85
7.0
Series
2.0, 1.0
+5.0
UNITS
MHz
PPM
PPM
˚C
˚C
pF
pF
mW
PPM
EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION
FREQUENCY RANGE (MHz)
1.800 ~ 1.999
2.000 ~ 2.399
2.400 ~ 2.999
3.000 ~ 3.199
3.200 ~ 3.699
3.700 ~ 4.199
4.200 ~ 4.899
4.900 ~ 4.999
MODE
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
MAX ESR
Ω
750
500
300
200
120
100
70
55
FREQUENCY RANGE (MHz)
5.000 ~ 5.999
6.000 ~ 7.999
8.000 ~ 9.999
10.000 ~ 12.499
12.500 ~ 15.999
16.000 ~ 25.000
23.000 ~ 100.000
MODE
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd O/T
MAX ESR
Ω
50
40
35
30
25
20
40
PACKAGE DIMENSIONS (mm)
11.35
(10.5) Max.
11.35 Max.
13.46 Max.
0
PPM
f/f
+ 30
- 10
4.65 Max.
- 30
25
60
TEMP.(˚C)
0.43
12.7 Min.
Figure 2) Frequency vs Temperature Curve
4.88
±
0.020
Figure 1) HC-49U - Side and Bottom views
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
CRYSTALS
6
CRYSTALS
PCB设计