E1U Series
• RoHS Compliant (Pb-Free)
• HC-49/US short package
• AT or BT cut available
• Resistance weld seal
• Tight tolerance/stability
• Tape and reel, insulator tab,
and custom lead length options available CRYSTAL
E1U
ELECTRICAL SPECIFICATIONS
MANUFACTURER CATEGORY SERIES PACKAGE CLASS REV.DATE
ECLIPTEK CORP. CRYSTAL E1U HC-49/US Short CR41 08/05
EQUIVALENT SERIES RESISTANCE (ESR), MODE OF OPERATION (MODE), AND CUT
NOTES
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ESR (Ω)
60 Max
50 Max
40 Max
40 Max
150 Max
100 Max
ESR (Ω)
200 Max
150 Max
120 Max
90 Max
80 Max
70 Max
Frequency Range
3.579545MHz to 4.999MHz
5.000MHz to 5.999MHz
6.000MHz to 7.999MHz
8.000MHz to 8.999MHz
9.000MHz to 9.999MHz
10.000MHz to 14.999MHz
Mode / Cut
Fundamental / AT
Fundamental / AT
Fundamental / AT
Fundamental / AT
Fundamental / AT
Fundamental / AT
Frequency Range
15.000MHz to 15.999MHz
16.000MHz to 23.999MHz
24.000MHz to 30.000MHz
24.000MHz to 40.000MHz
24.576MHz to 29.999MHz
30.000MHz to 50.000MHz
Mode / Cut
Fundamental / AT
Fundamental / AT
Fundamental / AT
Fundamental / BT
Third Overtone / AT
Third Overtone / AT
800-ECLIPTEK www.ecliptek.com for latest revision Specifications subject to change without notice.
H 2.50
L 11.18
W 4.70
Frequency Range
Frequency Tolerance / Stability
Over Operating Temperature Range
Operating Temperature Range
Aging (at 25°C)
Storage Temperature Range
Shunt Capacitance
Insulation Resistance
Drive Level
Load Capacitance (CL)
3.579545MHz to 50.000MHz
±50ppm / ±100ppm (Standard), ±30ppm / ±50ppm (AT cut only), ±15ppm / ±30ppm (AT cut only),
±15ppm / ±20ppm (AT cut only), or ±10ppm / ±15ppm (AT cut only)
0°C to 70°C, -20°C to 70°C (AT cut only), -40°C to 85°C (AT cut only), or -40°C to 125°C (AT cut only)
±5ppm / year Maximum
-40°C to 125°C
7pF Maximum
500 Megaohms Minimum at 100VDC
1 mWatt Maximum
18pF (Standard), Custom CL ≥10pF, or Series Resonant
PART NUMBERING GUIDE
MECHANICAL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
TAPE AND REEL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
MARKING SPECIFICATIONS
ENVIRONMENTAL/MECHANICAL SPECIFICATIONS
E1U A A 18 - 20.000M - I2 TR
PACKAGING OPTIONS
Blank=Bulk, A=Tray, TR=Tape and Reel
AVAILABLE OPTIONS
Blank=None (Standard)
CX=Custom Lead Length
I2=Insulator Tab
FREQUENCY
LOAD CAPACITANCE
S=Series
XX=XXpF (Custom)
MODE OF OPERATION / CRYSTAL CUT
A=Fundamental / AT
B=Third Overtone / AT
D=Fundamental / BT
MANUFACTURER CATEGORY SERIES PACKAGE CLASS REV.DATE
ECLIPTEK CORP. CRYSTAL E1U HC-49/US Short CR41 08/05
1000 Pieces per Reel
Compliant to EIA-468B
Line 1: E XX.XXX M
Frequency in MHz
(5 Digits Maximum + Decimal)
800-ECLIPTEK www.ecliptek.com for latest revision Specifications subject to change without notice.
PARAMETER SPECIFICATION
Fine Leak Test MIL-STD-883, Method 1014, Condition A
Gross Leak Test MIL-STD-883, Method 1014, Condition C
Lead Integrity MIL-STD-883, Method 2004
Lead Termination Sn 2µm - 6µm
Mechanical Shock MIL-STD-202, Method 213, Condition C
Resistance to Soldering Heat MIL-STD-202, Method 210
Resistance to Solvents MIL-STD-202, Method 215
Solderability MIL-STD-883, Method 2002
Temperature Cycling MIL-STD-883, Method 1010
Vibration MIL-STD-883, Method 2007, Condition A
FREQUENCY TOLERANCE / STABILITY
A=±50ppm at 25°C, ±100ppm from 0°C to 70°C
B=±50ppm at 25°C, ±100ppm from -20°C to 70°C
C=±50ppm at 25°C, ±100ppm from -40°C to 85°C
D=±30ppm at 25°C, ±50ppm from 0°C to 70°C
E=±30ppm at 25°C, ±50ppm from -20°C to 70°C
F=±30ppm at 25°C, ±50ppm from -40°C to 85°C
G=±15ppm at 25°C, ±30ppm from 0°C to 70°C
H=±15ppm at 25°C, ±30ppm from -20°C to 70°C
J=±15ppm at 25°C, ±30ppm from -40°C to 85°C
K=±15ppm at 25°C, ±20ppm from 0°C to 70°C
L=±15ppm at 25°C, ±20ppm from -20°C to 70°C
M=±15ppm at 25°C, ±20ppm from -40°C to 85°C
N=±10ppm at 25°C, ±15ppm from 0°C to 70°C
P=±10ppm at 25°C, ±15ppm from -20°C to 70°C
T=±30ppm at 25°C, ±50ppm from -40°C to 125°C
