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 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
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

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