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: [email protected] Internet: http://www.raltron.com