CSM-4A
SMD QUARTZ CRYSTAL
The CSM-4A SMD version of the HC-49US
leaded crystal. The CSM-4A has a case height
of 5 mm maximum in a resistance-weld
metal package. The CSM-4A is also pin out
compatible with the EPSON MA-506.
FEATURES
• Cost effective
• Resistance-weld sealing
• Extended Temp range available
• Tape & Reel (1,000 pcs)
PART NUMBERING GUIDE
“EXAMPLE”
MANUFACTURER
ECS
–
FREQUENCY (4.000 MHz)
40
–
LOAD CAPACITANCE*
20
–
PACKAGE TYPE
28A
* Load capacitance (xx=xx pF, S=series resonance) Package Type examples (-28A = 5.0 mm max. height, -28AL = 4.0 mm max. height)
Note: See Product Selection Guide for additional options including tighter tolerances or extended temperature range.
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
FREQUENCY RANGE
CALIBRATION TOLERANCE
FREQUENCY STABILITY ref @25˚C
SHUNT CAPACITANCE
LOAD CAPACITANCE
DRIVE LEVEL
OPERATING TEMPERATURE
STORAGE TEMPERATURE
AGING CHARACTERISTICS (Per Year)
CONDITIONS
@ +25˚C
-10 ~ +70˚C
C
L
(Customer Specified)
DL
T
OPR
**
T
STG
@ +25˚C ± 3˚C per year
10
-10
-30
20.0 standard
MINIMUM
3.579545
TYPICAL
MAXIMUM
70.000
±30*
±50*
7
Series
500
+70
+85
±5
UNITS
MHz
PPM
PPM
pF
pF
µW
˚C
˚C
PPM
* Tighter specifications are available. **Extended temperature range available.
EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION
FREQUENCY RANGE (MHz)
3.579545 ~ 4.999
5.000 ~ 5.999
6.000 ~ 6.999
7.000 ~ 8.999
MODE OF OSC
Fundamental
Fundamental
Fundamental
Fundamental
MAX ESR
Ω
200
150
100
80
FREQUENCY RANGE (MHz)
9.000 ~ 12.000
13.000 ~ 19.999
20.000 ~ 30.000
27.000 ~ 80.000
MODE OF OSC
Fundamental
Fundamental
Fundamental
3rd O/T
MAX ESR
Ω
60
40
30
100
PACKAGE DIMENSIONS (mm)
12.5 max
4
3
9.0
2.2
4.85
max
2.0
REF
4
3
3.5
1
2
Height “H” (max.)
-28A
5.0 mm
-28AL 4.0 mm
2.2
1
2
2.3
2.3
Figure 2) CSM-4A Internal Connections
H
1.2
±
0.1
Figure 3) Land Pattern
1.3
±
0.1
(X4)
9.0
±
0.1
Figure 1) CSM-4A - Top, Side and End views
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
SMD CRYSTALS
18
SMD CRYSTALS
编程基础