Quartz Crystal Resonators
LOW FREQUENCY RESISTANCE WELD THRU-HOLE PACKAGE - HC51U Series
FEATURES
Important Low Frequency Range for Special Applications
AT-cut Crystal, Excellent Aging and Reliability
Industry Standard Package, Excellent Clock Signal Generator for CPUs
SPECIFICATIONS
Frequency Range
Standard Frequencies
Resonance Mode
Calibration Tolerance @25°C
Frequency Stability Ref @25°C
Temperature Range
Crystal Aging
Storage Temperature
Load Capacitance (CL)
Shunt Capacitance
Drive Level
Typical Part Number
Product Series
Frequency
Resonance Mode: 1 = Fundamental
1.000 MHz to 4.200 MHz
1.000 MHz, 1.544 MHz, 1.8432 MHz, 2.000 MHz, 2.097152 MHz, 2.4576 MHz
2.667 MHz, 3.000 MHz, 3.200 MHz, 3.2768 MHz, 3.579545 MHz, 4.194304 MHz
1 = Fundamental
A = ±50 ppm, Standard; B = ±30 ppm
50 = ±50 ppm
A = 0°C to 70°C; B = -40°C to 85°C
±3 ppm / year Maximum
-55°C to 125°C
CL = 10 pF to 32 pF to be specified, or S = Series resonant
7 pF Maximum
0.5 mW Typical, 1 mW Maximum
HC51U-1M544-1 A 50 G 20
-options
Load Capacitance: 10, 20, 32, S = Series resonant
Operating Temperature Range: A = 0 to 70°C
Frequency Stability:
Tolerance at 25°C:
A = ±50 ppm
100 = ±100 ppm
50 = ±50 ppm
30 = ±30 ppm
B = ±30 ppm
C = ±20 ppm
B = -40 to 85°C
G = -10 to 70°C
Equivalent Series Resistance
Frequency (MHz)
1.0000
1.8432
2.0000
2.097152
2.45760
2.6670
3.0000
OUTLINE DRAWING
Mode
Fund
Fund
Fund
Fund
Fund
Fund
Fund
Max ESR (Ohms)
750
500
250
250
250
250
100
Frequency (MHz)
3.2000
3.27680
3.579545
4.194304
Mode
Fund
Fund
Fund
Fund
Max ESR (Ohms)
100
100
100
100
19.70 MAX
19.23 MAX
0.76
±
0.05
20.0 MAX
12.34
±
0.2
8.94 MAX
All dimensions are typical unless otherwise specified
Dimensions in Millimeters
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2006-2007 Fortiming Corp. USA
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