C4 - Raltron Electronics Corporation

HIGH ACCURACY CRYSTAL UNITS
FEATURES
TIGHT TOLERANCE AND STABILITY OVER TEMPERATURE
WIDE FREQUENCY RANGE
EXCELLENT FREQUENCY SOURCE FOR TELECOM APPLICATIONS
SPECIFICATIONS
FREQUENCY RANGE
1.00 MHz TO 360.00 MHz
HOLDER TYPES
A: HC-49/U
1.00 MHz TO 360.00 MHz
C: UM-1
8.00 MHz TO 300.00 MHz
C4: UM-4
10.00 MHz TO 300.00 MHz
C5: UM-5
10.00 MHz TO 300.00 MHz
FREQUENCY TOLERANCE AT 25°C
±5 PPM TO ±25 PPM
FREQUENCY STABILITY OVER TEMPERATURE
±3 PPM (-10°C TO +60°C) TO
±50 PPM (-55°C TO +125°C)
OPERATING TEMPERATURE RANGE
-55°C TO +125°C MAXIMUM
LOAD CAPACITANCE
10 pF TO 50 pF OR SERIES
AGING PER YEAR
±3 PPM MAXIMUM
MODE OF OSCILLATION
FUNDAMENTAL THRU NINTH OVERTONE
EQUIVALENT SERIES RESISTANCE (ESR)
SEE PAGE 3
DRIVE LEVEL
0.1 uW TYPICAL
OUTLINE DRAWINGS
UM-4
6.00
12.00 MIN
12.00 MIN
.472 MIN
0.35 DIA
.014 DIA
0.35 DIA
.236
UM-5
.472 MIN
.014 DIA
3.75
3.75
.148
3.20
.126
3.20
.148
.126
mm
inch
4.80
.189
Scale none Dimension in
7.90 MAX
.311 MAX
7.90 MAX
.311 MAX
REFER TO PAGE X FOR ADDITIONAL OUTLINE DRAWINGS
PART NUMBERING SYSTEM
HOLDER TYPE
A
B
C
C4
C5
HC-49/U
HC-51/U
UM-1
UM-4
UM-5
FREQUENCY
LOAD CAPACITANCE
-
IN MHz
10 TO 32pF FOR PARALLEL
S FOR SERIES
-
MECHANICAL OPTIONS
THREE PIN BASE
3PIN
-
THIRD LEAD
(TOP OF HOUSING)
3RD
-
EXTENDED
TEMPERATURE
MODE
F
3OT
5OT
7OT
9OT
FUNDAMENTAL†
THIRD OVERTONE
FIFTH OVERTONE
SEVENTH OVERTONE
NINTH OVERTONE
EXT
TAPE AND REEL
SPACER
SP
-
SLEEVE
TR
SL
EXAMPLE: A-4.000-18-EXT-3PIN-SP-SL-TR
C4-50.000-S-30T
† FUNDAMENTAL MODE NOT NEEDED IN PART NUMBER
Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A.
Tel: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com