ECM2A Series
• RoHS Compliant (Pb-Free)
• Miniature four pad ceramic
SMD package
• AT cut
• Tight tolerance/stability
• Tape and reel available
CRYSTAL
ECM2A
MANUFACTURER CATEGORY SERIES PACKAGE CLASS REV.DATE
ECLIPTEK CORP. CRYSTAL ECM2A CERAMIC CR60 07/10
EQUIVALENT SERIES RESISTANCE (ESR), MODE OF OPERATION (MODE), AND CUT
NOTES
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ELECTRICAL SPECIFICATIONS
800-ECLIPTEK www.ecliptek.com for latest revision Specifications subject to change without notice.
0˚C to +70˚C
-20˚C to +70˚C
-30˚C to +85˚C
1
2
3
±30ppm
X
X
X
±20ppm
X
X
X
±15ppm
X
X
X
±10ppm
X
X
Frequency Stability (X Denotes Availability)
Frequency Range 16MHz, 19.66MHz, 20MHz, 24MHz, 24.576MHz, 25MHz, 26MHz, 27MHz, 29.4912MHz, 29.939MHz,
30MHz, 30.72MHz, 32MHz, 34.4MHz, 38.4MHz, 40MHz, 44MHz, 48MHz, and 50MHz
Frequency Tolerance ±15ppm or ±10ppm
Frequency Stability ±30ppm, ±20ppm, ±15ppm, or ±10ppm (See Table 1)
Operating Temperature Range 0°C to +70°C, -20°C to +70°C, or -30°C to +85°C (See Table 1)
Aging (at 25°C) ±3ppm / year Maximum
Storage Temperature Range -40°C to 90°C
Shunt Capacitance 5pF Maximum
Insulation Resistance 500 Megaohms Minimum at 100VDC
Drive Level 100 µWatts Maximum
Load Capacitance (CL) Series Resonant, 8pF Parallel Resonant to 32pF Parallel Resonant
Spurious Response -3dB Minimum; F0 to F0 +5000ppm
Frequency Range
16.000MHz to 19.999999MHz
20.000MHz to 29.999999MHz
30.000MHz to 39.999999MHz
40.000MHz to 50.000MHz
ESR (Ω)
100 Maximum
80 Maximum
60 Maximum
50 Maximum
Mode / Cut
Fundamental / AT
Fundamental / AT
Fundamental / AT
Fundamental / AT
H 0.55
L 2.50
W 2.00
MECHANICAL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
MARKING SPECIFICATIONS
ENVIRONMENTAL/MECHANICAL SPECIFICATIONS
MANUFACTURER CATEGORY SERIES PACKAGE CLASS REV.DATE
ECLIPTEK CORP. CRYSTAL ECM2A CERAMIC CR60 07/10
SUGGESTED SOLDER PAD LAYOUT
ALL DIMENSIONS IN MILLIMETERS
Tolerance = +0.2
TAPE AND REEL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
M N O P Q
1.5 MIN 50 MIN 20.2 MIN 13±.2 40 MIN
R S T U V
QTY/REEL
2.5 MIN 10 MIN 13.0 MAX 180 MAX 8.4+1.5-0 1,000
REEL
A B C D E
8±.2 3.5±.1 2.75±.1 4 ±.1 2±.05
F G H J K L
4±.1 A0 1.5±.1 B0 .25 ±.05 K0
TAPE
*Compliant to EIA-481A
PACKAGING OPTIONS
Blank=Bulk, TR=Tape and Reel
FREQUENCY
PART NUMBERING GUIDE
ECM2A 4 C 3 A 18 - 20.000M TR
LOAD CAPACITANCE
S=Series Resonant
XX=8pF Parallel Resonant to 32pF
Parallel Resonant
MODE OF OPERATION
A=Fundamental
FREQUENCY TOLERANCE (AT 25°C)
4=±15ppm Maximum
5=±10ppm Maximum
FREQUENCY STABILITY
C=±30ppm Maximum
D=±20ppm Maximum
E=±15ppm Maximum
F=±10ppm Maximum
OPERATING TEMPERATURE RANGE
1= 0°C to +70°C
2=-20°C to +70°C
3=-30°C to +85°C
Line 1: XX.X
Frequency in MHz
(3 Digits Maximum + Decimal)
Line 2: XXX
Ecliptek Manufacturing Identifier
800-ECLIPTEK www.ecliptek.com for latest revision Specifications subject to change without notice.
2.50
±0.10
2.00
±0.10
0.55 MAX
0.65 ±0.10
0.95
±0.10
MARKING
ORIENTATION
1
2
3
4
0.675 ±0.100
(
X4
)
0.775
±0.10
(X4)
Pad 1: Input/Output
Pad 2: Cover/Ground
Pad 3: Input/Output
Pad 4: Cover/Ground
PARAMETER SPECIFICATION
ESD Susceptibility MIL-STD-883, Method 3015, Class 1, HBM: 1500V
Fine Leak Test MIL-STD-883, Method 1014, Condition A
Gross Leak Test MIL-STD-883, Method 1014, Condition C
Flammability UL94-V0
Mechanical Shock MIL-STD-883, Method 2002, Condition B
Moisture Resistance MIL-STD-883, Method 1004
Moisture Sensitivity J-STD-020, MSL 1
Resistance to Soldering Heat MIL-STD-202, Method 210, Condition K
Resistance to Solvents MIL-STD-202, Method 215
Solderability MIL-STD-883, Method 2003
Temperature Cycling MIL-STD-883, Method 1010, Condition B
Vibration MIL-STD-883, Method 2007, Condition A
