HC-49/U Series
Quartz Crystal
Actual Size
Product Description
Frequency Range:
The HC-49/U series is an industry standard AT-cut
crystal that is housed in Mil standard HC-49/U
packaging.
• 1.8432 to 27.0000 MHz (Fundamental)
• 27.0001 to 60.0000 MHz (3rd OT)
Characteristics at 25°C ±2°C:
Product Features
• Frequency Calibration Tolerance (as specified): ±30ppm, ±50ppm
• Load Capacitance (as specified): 12 to 32pF or Series Resonance
• Effective Series Resistance:
• AT-cut performance
• Resistance weld seal
• Low cost
700Ω max (1.8432 to 3.199MHz)
150Ω max (3.2 to 3.499MHz)
120Ω max (3.5 to 3.999MHz)
• Versatile
• Pb-free and RoHS/Green compliant available
100Ω max (4 to 4.999MHz)
50Ω max (5 to 6.000MHz)
40Ω max (6.001 to 7.999MHz)
35Ω max (8 to 9.999MHz)
30Ω max (10 to 12.999MHz)
25Ω max (13 to 17.999MHz)
20Ω max (18 to 27.000MHz, AT Fund)
40Ω max (27.001 to 60MHz, AT (3rd overtone)
Typical Applications
• Set-Top Box/Multimedia
• Clock/VCXO Multiplier
• Network Adapter Cards
• Modems
• Microcontrollers and Processors
• Remote control devices
• Drive Level: 100µW correlation, (2000µW Max)
• Shunt Capacitance: 7pF Max.
Temperature Range:
• Operating: –20 to +70°C ; -40 to +85°C (as specified)
• Storage: –55 to +125°C
Temperature Stability (as specified):
• ±30ppm (–20 to +70°C)
• ±50 or ±100ppm (–40 to +85°C)
Aging @ 25°C, first year:
• ±3ppm (typ), ±5ppm (max)
Reflow Temperature:
• 240°C Max (non-RoHS package)
• 260°C Max, 10 sec max (RoHS package)
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
All specifications are subject to change without notice.
DS-121 Rev J | 06/27/06
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