MICROPROCESSOR CRYSTAL UNITS
FEATURES
EXCELLENT CLOCK SIGNAL GENERATOR FOR CPU’s
WIDE FREQUENCY RANGE
INDUSTRY STANDARD PACKAGES
SPECIFICATIONS
FREQUENCY RANGE
A: HC-49/U
HOLDER TYPES
B: HC-51/U
C: UM-1
FREQUENCY TOLERANCE AT 25 °C
FREQUENCY STABILITY OVER TEMPERATURE
100.00 KHz TO 300.00 MHz
1.00 MHz TO 300.00 MHz
100.00 KHz TO 4.00 MHz
8.00 MHz TO 300.00 MHz
±30 PPM TYPICAL
±50 PPM MAXIMUM
±50 PPM TYPICAL
±100 PPM MAXIMUM
-20 °C TO +70 °C STANDARD
OPERATING TEMPERATURE RANGE
-40° C TO +85 °C EXTENDED
STORAGE TEMPERATURE RANGE
AGING
LOAD CAPACITANCE
SHUNT CAPACITANCE
EQUIVALENT SERIES RESISTANCE (ESR)
DRIVE LEVEL
SHOCK RESISTANCE
-55 °C TO +125 °C
±5 PPM PER YEAR MAXIMUM
10 TO 32 pF 0R SERIES
7 pF MAXIMUM
SEE PAGE 11
0.1 mW TYPICAL
1 mW MAXIMUM
±5 PPM MAXIMUM 75 cm DROP TEST IN 3 AXES ONTO A HARD
SURFACE OR 1000 g’s x 0.5 ms x �½ SINEWAVE IN 3 AXES
SERIES A, B, C
HC-49/U, HC-51/U, AND UM-1
FREQUENCY RANGE AND MODE OF OSCILLATION BY HOLDER TYPE
HOLDER TYPE
TYPE A: HC-49/U
TYPE B: HC-51/U
TYPE C: UM-1
FUNDAMENTAL
(FUND)
1.00 MHz TO 65.00 MHz
100.00 KHz TO 4.00 MHz
8.00 MHz TO 65.00 MHz
25.00 MHz TO 90.00 MHz
60.00 MHz TO 130.00 MHz 125.00 MHz TO 200.00 MHz 180.00 MHz TO 300.00 MHz
THIRD OVERTONE
(3OT)
20.00 MHz TO 90.00 MHz
FIFTH OVERTONE
(5OT)
SEVENTH OVERTONE
(7OT)
NINTH OVERTONE
(9OT)
60.00 MHz TO 130.00 MHz 125.00 MHz TO 200.00 MHz 180.00 MHz TO 300.00 MHz
PART NUMBERING SYSTEM
HOLDER TYPE
-
IN MHz
FREQUENCY
-
LOAD CAPACITANCE
-
F
3OT
5OT
7OT
9OT
MODE
FUNDAMENTAL
THIRD OVERTONE
FIFTH OVERTONE
SEVENTH OVERTONE
NINTH OVERTONE
-
EXT
EXTENDED
TEMPERATURE
A
B
C
HC-49/U
HC-51/U
UM-1
10 TO 32pF FOR PARALLEL
S FOR SERIES
MECHANICAL OPTIONS
THREE PIN BASE
3PIN
THIRD LEAD
(TOP OF HOUSING)
3RD
SPACER
SP
SLEEVE
SL
-
TAPE AND REEL
-
-
-
TR
† FUNDAMENTAL MODE NOT NEEDED IN PART NUMBER
EXAMPLE: A-4.000-S
A-3.579545-18-EXT-3PIN-SP-SL-TR
C-65.000-S-30T
RAMI
TECHNOLOGY
10651 NW 19th St. Miami, Florida 33172 U.S.A.
Tel: 305-593-8000
Fax: 305-593-8487 e-mail: sales@ramitechnology.com
web: www.ramitechnology.com
RALTRON [ Raltron Electronics Corporation ]
