PART NUMBERING GUIDE
E1U A A 18 - 20.000M - I2 TR
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
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
MECHANICAL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
TAPE AND REEL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
ENVIRONMENTAL/MECHANICAL SPECIFICATIONS
PARAMETER
SPECIFICATION
MARKING SPECIFICATIONS
1000 Pieces per Reel
Compliant to EIA-468B
Fine Leak Test
Gross Leak Test
Lead Integrity
Lead Termination
Mechanical Shock
Resistance to Soldering Heat
Resistance to Solvents
Solderability
Temperature Cycling
Vibration
MIL-STD-883, Method 1014, Condition A
MIL-STD-883, Method 1014, Condition C
MIL-STD-883, Method 2004
Sn 2µm - 6µm
MIL-STD-202, Method 213, Condition C
MIL-STD-202, Method 210
MIL-STD-202, Method 215
MIL-STD-883, Method 2002
MIL-STD-883, Method 1010
MIL-STD-883, Method 2007, Condition A
Line 1: E XX.XXX M
Frequency in MHz
(5 Digits Maximum + Decimal)
MANUFACTURER
CATEGORY
SERIES
PACKAGE
CLASS
REV
.
DATE
ECLIPTEK CORP.
CRYSTAL
E1U
HC-49/US Short
CR41
11/07
800-ECLIPTEK www.ecliptek.com for latest revision
Specifications subject to change without notice.
ECLIPTEK [ ECLIPTEK CORPORATION ]
