EC7
Series
• RoHS Compliant (Pb-Free)
• Inverted Mesa Crystal
• Fundamental mode frequencies to 212.5MHz
• UM-1 package
• AT cut
• Tight tolerance/stability
• Wide operating temperature range
NOTES
H
L
W
EC7
8.1
7.9
3.2
CRYSTAL
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ELECTRICAL SPECIFICATIONS
Frequency Range
Frequency Tolerance / Stability
Over Operating Temperature Range
Operating Temperature Range
Aging (at 25°C)
Storage Temperature Range
Shunt Capacitance
Drive Level
Load Capacitance (C
L
)
Motional Capacitance (C
1
)
Insulation Resistance
35.000MHz to 212.500MHz
±50ppm / ±100ppm, ±30ppm/±50ppm
±15ppm / ±30ppm, or ±10ppm / ±30ppm
0°C to 70°C, -20°C to 70°C, or -40°C to 85°C
±3ppm / year Maximum
-40°C to 85°C
5pF Maximum
100µWatts Maximum
18pF (Standard), Custom C
L
≥
10pF, or Series Resonant
3fF Min, 10fF Max (F
0
< 100MHz), 3fF Min, 13fF Max (F
0
> 100MHz)
500 Megaohms Minimum at 100V
DC
EQUIVALENT SERIES RESISTANCE (ESR), MODE OF OPERATION (MODE), AND CUT
Frequency Range
35.000MHz to 50.000MHz
50.001MHz to 100.000MHz
MANUFACTURER
ESR (Ω)
15 Max
20 Max
CATEGORY
Mode / Cut
Fundamental / AT
Fundamental / AT
SERIES
Frequency Range
100.001MHz to 160.000MHz
160.001MHz to 212.500MHz
PACKAGE
ESR (Ω)
25 Max
30 Max
CLASS
Mode / Cut
Fundamental / AT
Fundamental / AT
REV
.
DATE
ECLIPTEK CORP.
CRYSTAL
EC7
UM-1
CR36
08/02
800-ECLIPTEK www.ecliptek.com for latest revision
18
Specifications subject to change without notice.
PART NUMBERING GUIDE
EC7 A - 20 - 35.000M
FREQUENCY TOLERANCE / STABILITY
Blank=±50ppm at 25°C, ±100ppm from 0°C to 70°C
A=±50ppm at 25°C, ±100ppm from -20°C to 70°C
B=±50ppm at 25°C, ±100ppm from -40°C to 85°C
C=±30ppm at 25°C, ±50ppm from 0°C to 70°C
D=±30ppm at 25°C, ±50ppm from -20°C to 70°C
E=±30ppm at 25°C, ±50ppm from -40°C to 85°C
F=±15ppm at 25°C, ±30ppm from 0°C to 70°C
G=±15ppm at 25°C, ±30ppm from -20°C to 70°C
H=±15ppm at 25°C, ±30ppm from -40°C to 85°C
J=±10ppm at 25°C, ±30ppm from 0°C to 70°C
K=±10ppm at 25°C, ±30ppm from -20°C to 70°C
L=±10ppm at 25°C, ±30ppm from -40°C to 85°C
FREQUENCY
LOAD CAPACITANCE
Blank=18pF (Standard)
S=Series, XX=XXpF (Custom)
NOTES
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MECHANICAL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
ENVIRONMENTAL/MECHANICAL SPECIFICATIONS
PARAMETER
Seal Integrity
Solderability
Marking Permanency
Shock
Vibration
SPECIFICATION
Bubble test in Perfluorocarbon at +125°C ±5°C for 60 seconds minimum.
Sn63 Solder dip at +230°C ±5°C for 5 seconds/95% coverage.
10 Strokes with brush after 1 minute soak in solvent, 3 times.
Random drop on hard wooden plate 3 times from a height of 50cm.
Frequency with an amplitude of 1.5mm sweeping between 10Hz to 55Hz
within 1 minute (approximately) for 2 hours minimum on each axis (X,Y
and Z) for a total of 6 hours.
MARKING SPECIFICATIONS
Line 1: ECLIPTEK
Line 2: XX.XXXM
Frequency in MHz (5 Digits Maximum + Decimal)
Line 3: XX
Ecliptek Manufacturing Identifier
MANUFACTURER
CATEGORY
SERIES
PACKAGE
CLASS
REV
.
DATE
ECLIPTEK CORP.
CRYSTAL
EC7
UM-1
CR36
08/02
800-ECLIPTEK www.ecliptek.com for latest revision
19
Specifications subject to change without notice.