E1SKA18-28.375M
REGULATORY COMPLIANCE
2011/65 +
2015/863
(Data Sheet downloaded on Aug 24, 2020)
191 SVHC
ITEM DESCRIPTION
Quartz Crystal Resonator HC49/UP Short 2 Pad Surface Mount (SMD) 3.2mm Height Metal Resistance Weld Seal 28.375MHz
±15ppm at 25°C, ±20ppm over 0°C to +70°C 18pF Parallel Resonant
ELECTRICAL SPECIFICATIONS
Nominal Frequency
Frequency Tolerance/Stability
Aging at 25°C
Load Capacitance
Shunt Capacitance
Equivalent Series Resistance
Mode of Operation
Drive Level
Storage Temperature Range
Insulation Resistance
28.375MHz
±15ppm at 25°C, ±20ppm over 0°C to +70°C
±5ppm/year Maximum
18pF Parallel Resonant
7pF Maximum
40 Ohms Maximum
AT-Cut Fundamental
1mWatt Maximum
-55°C to +125°C
500 Megaohms Minimum (Measured at 100Vdc)
ENVIRONMENTAL & MECHANICAL SPECIFICATIONS
ESD Susceptibility
Fine Leak Test
Flammability
Gross Leak Test
Mechanical Shock
Moisture Resistance
Moisture Sensitivity
Resistance to Soldering Heat
Resistance to Solvents
Solderability
Temperature Cycling
Vibration
MIL-STD-883, Method 3015, Class 1, HBM: 1500V
MIL-STD-883, Method 1014, Condition A
UL94-V0
MIL-STD-883, Method 1014, Condition C
MIL-STD-202, Method 213, Condition C
MIL-STD-883, Method 1004
J-STD-020, MSL1
MIL-STD-202, Method 210, Condition K
MIL-STD-202, Method 215
MIL-STD-883, Method 2003
MIL-STD-883, Method 1010, Condition B
MIL-STD-883, Method 2007, Condition A
www.ecliptek.com | Specification Subject to Change Without Notice | Revision H 11/09/2015 | Page 1 of 4
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
E1SKA18-28.375M
MECHANICAL DIMENSIONS (all dimensions in millimeters)
LINE MARKING
1
E28.375M
E=Ecliptek Designator
3.20
MAX
13.30 MAX
4.85
MAX
4.88 ±0.20
0.50 MIN (x2)
0.80 ±0.30 (x2)
11.60 MAX
NOTE: Coplanarity 0.360 MAX
Suggested Solder Pad Layout
All Dimensions in Millimeters
5.5 (X2)
2.0 (X2)
4.0
Solder Land
(X2)
All Tolerances are ±0.1
www.ecliptek.com | Specification Subject to Change Without Notice | Revision H 11/09/2015 | Page 2 of 4
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
E1SKA18-28.375M
Recommended Solder Reflow Methods
High Temperature Infrared/Convection
T
S
MAX to T
L
(Ramp-up Rate)
Preheat
- Temperature Minimum (T
S
MIN)
- Temperature Typical (T
S
TYP)
- Temperature Maximum (T
S
MAX)
- Time (t
S
MIN)
Ramp-up Rate (T
L
to T
P
)
Time Maintained Above:
- Temperature (T
L
)
- Time (t
L
)
Peak Temperature (T
P
)
Target Peak Temperature (T
P
Target)
Time within 5°C of actual peak (t
p
)
Ramp-down Rate
Time 25°C to Peak Temperature (t)
Moisture Sensitivity Level
Additional Notes
3°C/Second Maximum
150°C
175°C
200°C
60 - 180 Seconds
3°C/Second Maximum
217°C
60 - 150 Seconds
260°C Maximum for 10 Seconds Maximum
250°C +0/-5°C
20 - 40 Seconds
6°C/Second Maximum
8 Minutes Maximum
Level 1
Temperatures shown are applied to body of device.
www.ecliptek.com | Specification Subject to Change Without Notice | Revision H 11/09/2015 | Page 3 of 4
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
E1SKA18-28.375M
Recommended Solder Reflow Methods
Low Temperature Infrared/Convection 245°C
T
S
MAX to T
L
(Ramp-up Rate)
Preheat
- Temperature Minimum (T
S
MIN)
- Temperature Typical (T
S
TYP)
- Temperature Maximum (T
S
MAX)
- Time (t
S
MIN)
Ramp-up Rate (T
L
to T
P
)
Time Maintained Above:
- Temperature (T
L
)
- Time (t
L
)
Peak Temperature (T
P
)
Target Peak Temperature (T
P
Target)
Time within 5°C of actual peak (t
p
)
Ramp-down Rate
Time 25°C to Peak Temperature (t)
Moisture Sensitivity Level
Additional Notes
5°C/Second Maximum
N/A
150°C
N/A
30 - 60 Seconds
5°C/Second Maximum
150°C
200 Seconds Maximum
245°C Maximum
245°C Maximum 2 Times / 230°C Maximum 1 Time
10 Seconds Maximum 2 Times / 80 Seconds Maximum 1 Time
5°C/Second Maximum
N/A
Level 1
Temperatures shown are applied to body of device.
Low Temperature Manual Soldering
185°C Maximum for 10 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to body of device.)
High Temperature Manual Soldering
260°C Maximum for 5 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to body of device.)
www.ecliptek.com | Specification Subject to Change Without Notice | Revision H 11/09/2015 | Page 4 of 4
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
嵌入式系统
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